Hypothyroidism and Thyroid Conditions
1317 associated posts. These are attributed summaries; original text remains at the linked X post and in the local archive.
- @lowmegatron · 2025-09-30 original
Author posts extended Ray Peat quotations linking schizophrenia to stress, hormonal stress, serotonin, estrogen dominance from hypothyroidism, lipid peroxidation, low energy metabolism and poor sleep. A shared NTFabiano post calls the menstrual cycle an overlooked vital sign in mental health.
Source summary and thread relationship - @lowmegatron · 2025-09-30 original
Author shares a Ray Peat quotation that 'Cushingoid' fat distribution, sudden balding and other signs of hormone imbalance secondary to hypothyroidism are statistically associated with heart disease.
Source summary and thread relationship - @lowmegatron · 2025-09-30 original
Author states that hypothyroidism damages the thymus, which develops and regulates the immune system, builds defense against pathogens and prevents autoimmunity by removing self-reactive T cells.
Source summary and thread relationship - @lowmegatron · 2025-10-01 original
The author describes a low-carb pattern of weight loss, then weight gain, more restriction and hypothyroid symptoms. They claim high local cortisol can suppress thyroid hormone action while labs look normal. The quoted account (MojitoSlammer) reports going from 40% to 30% body fat without peptides or strict dieting, crediting Ray Peat.
Source summary and thread relationship - @lowmegatron · 2025-10-01 original
Author asserts that thyroid hormone regulates energy and that energy determines everything. The quoted post, from another account, is an anecdote that the user became less prone to sickness after starting thyroid supplementation.
Source summary and thread relationship - @lowmegatron · 2025-10-02 own thread gap
lowmegatron promotes his Hypothyroid Masterclass course, which he says teaches practical testing, nutrition and dosing concepts and includes a support community.
Source summary and thread relationship - @lowmegatron · 2025-10-02 original
The post quotes Ray Peat saying that in the 1930s thyroid removal raised blood cholesterol and thyroid supplementation lowered it. He says thyroid promotes conversion of cholesterol to pregnenolone and progesterone. The embedded metabolicwave post is a Ray Peat clip on the cholesterol-lowering effect of thyroid.
Source summary and thread relationship - @lowmegatron · 2025-10-02 original
The author reports that in women with Hashimoto's taking levothyroxine, one year of 2,000 IU/day vitamin D lowered TPO antibodies by about 30% and TgAb by about 25%. They were not vitamin D deficient at the start. The embedded post quotes Ray Peat on TSH, prolactin, calcium and vitamin D.
Source summary and thread relationship - @lowmegatron · 2025-10-03 original
Author claims bacterial endotoxin drives cognitive impairment and that vitamin C deficiency worsens gut barrier integrity and endotoxin handling. Vitamin C is said to help protect against endotoxin effects, including in mice. The author also says vitamin C supports vitamin E recycling and lowers lipid peroxidation from polyunsaturated fats.
Source summary and thread relationship - @lowmegatron · 2025-10-03 original
Quoted Ray Peat passage argues diabetes is driven by stress-induced free fatty acids that block glucose oxidation, not by sugar. He says this impairs thyroid hormone activation and that free fatty acids kill newly regenerated pancreatic beta cells.
Source summary and thread relationship - @lowmegatron · 2025-10-03 original
Author advertises a thyroid masterclass with video lessons and a support community, covering hormones, tests, diet, supplements and lifestyle. It is pitched as focusing on proper testing, hidden hypothyroidism and causes of thyroid hormone suppression.
Source summary and thread relationship - @lowmegatron · 2025-10-03 original
Author argues thyroid hormone T3 is a key determinant of heart rate and that overtraining and stress lower T3 while raising T4 and lowering TSH, making it easy to overlook. Stress-induced free fatty acids are said to block thyroid hormone metabolism and reduce the sensitivity of blood tests. The author says exercise should build you up rather than break you down.
Source summary and thread relationship - @lowmegatron · 2025-10-04 original
Author presents a causal chain in which hypothyroidism lowers glucose oxidation and raises cortisol and glucagon. Free fatty acids then block glucose oxidation (Randle cycle), producing 'insulin resistance', and they kill pancreatic beta cells, causing type 2 diabetes. The author says hypothyroidism doubles the risk of type 2 diabetes.
Source summary and thread relationship - @lowmegatron · 2025-10-04 original
Author says winter's lower light and cold-stress free fatty acids suppress thyroid activity. Quoted Ray Peat passages say thyroid supplement needs can be four times higher in December than July, and recommend bright incandescent or full-spectrum light and limiting unsaturated fats and tryptophan.
Source summary and thread relationship - @lowmegatron · 2025-10-05 original
Author claims that higher TSH within the normal range raises the risk of developing hypertension, more so in men than in women. The author attributes this to low thyroid hormone raising stress hormones, which raise blood pressure. The author also calls 'euthyroid' a poor marker of thyroid hormone status.
Source summary and thread relationship - @lowmegatron · 2025-10-05 original
Author states that taste and smell disturbances affect about 80% of hypothyroid patients and usually reverse with proper treatment. A long quoted passage from an unnamed clinical paper says taste defects may help explain reduced food intake in hypothyroidism. It also says the disturbances generally improved after thyroid hormone replacement.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
Author claims bacterial endotoxin reduces empathy in women, citing an experiment where injected endotoxin lowered empathy for others' psychological pain versus placebo. The experimenters suggested this may be an energy-saving adaptation. The author adds that endotoxin disrupts energy production, thyroid hormone and glucose metabolism, and quotes Ray Peat on intestinal endotoxin. The author notes the experiment used women only.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
Post shares a Ray Peat quote saying low thyroid is accompanied by extra antibody production, including antibodies to the thyroid itself, as part of a cleanup process. Per the quote, antibody production stops when inflammation stops, and circulating antibodies take several months to disappear. The embedded quoted post (lowmegatron) gives a longer Ray Peat excerpt on Hashimoto's, iodine, TSH and antibodies.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
The author says thyroid hormones, specifically levothyroxine, help lower Hashimoto's antibodies and thyroid inflammation. Excerpts from three named papers are quoted in support. The author adds that levothyroxine plus TSH testing is usually not the best approach and that treatment focused on T3 activity will likely work even better.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
The post shares a Ray Peat quote linking migraine to hypothyroidism, high serotonin, and intestinal irritation. In the quote, active thyroid hormone (T3) lowers serotonin and T3 is effective against migraines at the right dose. The embedded quoted post (lowmegatron) says linoleic acid from seed oils is elevated in migraine and raises PGE2 and serotonin.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
The post says JFK was diagnosed hypothyroid in 1955 and used T3-only treatment. It quotes medical-history sources and describes basal metabolic rate (BMR) testing as avoiding pitfalls of thyroid/TSH blood tests. It also quotes Werner and Ingbar and Broda Barnes on BMR and basal temperature testing. The embedded post (lowmegatron) discusses an FDA intent to ban natural desiccated thyroid (NDT) and NDT composition.
Source summary and thread relationship - @lowmegatron · 2025-10-06 original
The author says cocoa supports gut barrier integrity and lowers circulating endotoxin. The author lists conditions attributed to high endotoxin and quotes a finding of a 40% reduction in plasma endotoxin. The author advises choosing cocoa low in heavy metals. A PMCID is cited with a mouse emoji. The embedded post (lowmegatron) says metabolic endotoxemia causes obesity and diabetes in mice and humans.
Source summary and thread relationship - @lowmegatron · 2025-10-07 original
The author summarizes Ray Peat's comments on endotoxin from leaky gut. The summary covers links to aging, stress, cancer, inflammation, thyroid, estrogen and cholesterol, plus dietary and other factors said to raise or lower endotoxin effects.
Source summary and thread relationship - @lowmegatron · 2025-10-07 original
An excerpt from Kathleen Stewart's Substack email exchange with Ray Peat. The writer describes true hypoglycemia and suspected glucuronidation problems, and Peat replies that these are all signs of hypothyroidism and that a thyroid product lacking thyroid tissue may not raise temperature and pulse.
Source summary and thread relationship - @lowmegatron · 2025-10-07 original
The author cites a finding that hip fracture risk doubles in men with subclinical hypothyroidism, defined as high TSH with free T4 in range. The author criticizes the definition for ignoring T3 and calls the concept of subclinical hypothyroidism 'insane'.
Source summary and thread relationship - @lowmegatron · 2025-10-07 original
The author states that high TSH, and higher 'normal' TSH, increases miscarriage risk. The post quotes Ray Peat on elevated estrogen in hypothyroidism and thyroid's role in fertility, and quotes a study (PMID 31525729) linking TSH of 2.5-4.8, and above 4.8, to miscarriage.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
The post quotes Ray Peat recalling childhood migraines, myopia and apparent hypothyroidism among nearsighted girls. The embedded lowmegatron post quotes Peat on serotonin, thyroid hormone, intestinal inflammation and migraine.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
The author summarizes a small 2011 Brazilian pilot study (PMID 20662037) of near-infrared low-level light therapy on the thyroid in chronic autoimmune thyroiditis or Hashimoto's. The reported outcomes were reduced T4 needs, some patients stopping medication, lower TPOAb, and some normalized thyroid vascularization. The author also explains vascularization and the relationship between CAT and Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author reports that near-infrared light therapy in Hashimoto's patients was followed by lower T4 requirements, lower TPOAb and higher thyroid echogenicity. The post describes it as a follow-up to a pilot study and gives the light parameters and session schedule.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author says light therapy improved thyroid parenchymal vascularization in Hashimoto's (chronic autoimmune thyroiditis), possibly through reduced autoimmunity. The post quotes the Brazilian researchers and gives vascularization figures for treatment vs placebo.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author reports a 6-year follow-up of a human RCT in which levothyroxine/T4 requirements stayed reduced in the light-therapy group vs placebo. Author says no long-term risk was found, but that things worsened after treatment stopped.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author says light therapy plus supplements beat supplements alone in a Turkish human study of Hashimoto's, with higher T3, higher T3/T4 ratio, lower TPOAb and lower L-thyroxin dose. The post gives the laser protocol and comments on the supplements used.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author reports a Kosovo study in which three weeks of near-infrared light therapy added to selenium/vitamin D was followed by improved thyroid labs and reduced weight and waist measures in Hashimoto's. The post gives the light parameters and says weight fell further at 6 months.
Source summary and thread relationship - @lowmegatron · 2025-10-08 original
Author reports a Kosovan study in which three weeks of near-infrared light therapy plus supplements was followed by lower thyroid volume and improved thyroid labs in Hashimoto's. The post says the share of patients with normal thyroid volume rose from 17% to 96% at 6 months.
Source summary and thread relationship - @lowmegatron · 2025-10-09 original
Author cites a case-control study abstract reporting about 2x thyroid cancer risk associated with dental X-rays, and adds a sarcastic remark that X-rays were once called safe and are now safer because doses are lower. The quoted post relays Ray Peat's views on avoiding unnecessary X-rays and on nutrients, hormones, coffee and red light as protective around X-rays.
Source summary and thread relationship - @lowmegatron · 2025-10-09 original
Author claims light is the most effective treatment for Hashimoto's, listing improvements including lower TSH, antibodies and inflammation, and says 47% no longer needed thyroid medication, if done correctly. Says research will follow in a thread.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron reports a 2010 pilot study of light therapy in Hashimoto's-related hypothyroidism. He cites a 60% reduction in T4 needs, 47% discontinuing medication, a 40% drop in TPOAb, and normal thyroid vascularization in a quarter of participants, with two sessions per week for 5 weeks.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron says a follow-up RCT confirmed and expanded the pilot results. He reports 47% stopping thyroid medication, a 58% average reduction in T4 needs, a 49% drop in TPOAb, 95% reducing T4, and 95% increased echogenicity, which he interprets as healthier thyroid tissue.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron claims light therapy outperformed selenium, vitamin D and iron in Hashimoto's. He reports T3 up 54%, T3/T4 ratio up 44%, TPOAb down 73%, and T4 needs down 50%.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron says levothyroxine/T4 needs stayed lower for years after light therapy compared with placebo, but that medication requirements crept back up over time, so it is "not a one-and-done."
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron says light therapy led to weight loss that continued for months without further treatment. He reports weight down 6.8%, waist down 6.9%, hip down 3.0%, and waist/hip ratio down 3.3%.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron says light therapy reduced thyroid volume in Hashimoto's and reads this as a marker of healing and less inflammation. He reports that 4× more people reached normal thyroid volume after treatment.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron describes Hashimoto's as lymphocytes invading the thyroid, which causes inflammation and increased vascularization. He says light therapy reverses this vascularization and treats that as another sign of healing.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron recounts his own past attempts at thyroid light therapy. He ran two tests with two lights, dosed twice weekly for 3 months each, and antibodies stayed high. He suggests one light was red and one was too strong.
Source summary and thread relationship - @lowmegatron · 2025-10-09 own thread
lowmegatron plans a new self-experiment with an 830 nm near-infrared device placed a few inches from the thyroid, a few minutes a day, 3 times a week, to see whether his antibodies change. He claims most suppliers misstate device specifications and names Redlightman and Gembared as the only trustworthy ones. He asks readers to share their results and dosing details.
Source summary and thread relationship - @lowmegatron · 2025-10-09 original
The post text is only a link, sharing the author's earlier post on light and Hashimoto's. No added commentary or endorsement is visible.
Source summary and thread relationship - @lowmegatron · 2025-10-10 own thread
lowmegatron promotes his Hypothyroid Masterclass, a video course with a support community. It covers hypothyroidism, blood tests, autoimmunity, T3 conversion, supplementing T4, NDT or T3, nutrition, iron, iodine and selenium, PUFA, stress and drugs affecting thyroid hormones.
Source summary and thread relationship - @lowmegatron · 2025-10-10 original
Author claims seasonal thyroid sluggishness is driven by light, with NIRA infrared 5-10x higher in summer than winter at ~50°N, the same range said to help in Hashimoto's, and that most true hypothyroidism is Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2025-10-10 original
Post quotes Ray Peat on hives triggered by cold, exercise or low blood sugar, describing a chain of impaired oxidative metabolism, lactic acid, lipolysis and PUFA-derived prostaglandins, and recommends small frequent meals. The author adds mechanistic commentary on cytochrome c oxidase, mast cells, PUFAs, CO2 as mast-cell stabilizer, and T3.
Source summary and thread relationship - @lowmegatron · 2025-10-12 own thread
lowmegatron reports an update on his self-experiment: he is now at 4 minutes each side of the thyroid and sees no reaction. The quoted post says the device arrived, he began at 2 minutes per side at 1.5 inches, and he plans to work up to 8 minutes every other day.
Source summary and thread relationship - @lowmegatron · 2025-10-12 original
Author states treatment-resistant depression occurs when its cause is not treated, quoting a case report of a woman whose mood and cognition improved with T3 liothyronine. The embedded quoted post from EndoMedChem summarizes the same case.
Source summary and thread relationship - @lowmegatron · 2025-10-12 original
The author lists substances and practices that he claims lower or block serotonin, including aspirin, L-theanine, thiamine, glycine, taurine, T3, ginger, cyproheptadine, vitamin E, magnesium, DHEA, progesterone, testosterone/DHT, lysine, and avoiding seed oils. The quoted context is a Ray Peat line about serotonin overproduction and hibernation.
Source summary and thread relationship - @lowmegatron · 2025-10-13 original
The author claims hypothyroidism activates the sympathetic nervous system, raising cortisol (+60%), adrenaline, noradrenaline and aldosterone (doubled), with downstream effects on blood pressure, blood sugar and mood. Thyroid hormone replacement reversed the activation and lowered diastolic blood pressure, citing PMID 11994331.
Source summary and thread relationship - @lowmegatron · 2025-10-13 original
The author posts 'Winter is coming.' with an image, quoting a post that asks whether more thyroid hormone is needed in winter and requests shares for numbers. No substantive health claim is made.
Source summary and thread relationship - @lowmegatron · 2025-10-13 original
The author claims subclinical hypothyroidism is linked to a 2x increase in diabetes and that ignoring active T3 makes the diagnosis flawed. The post proposes that low T3 shifts to fatty-acid oxidation, raising free fatty acids and causing insulin resistance. It cites mouse experiments and PMID 31156553, with an NHANES reanalysis quoted. The embedded post is a Ray Peat quote on insulin resistance.
Source summary and thread relationship - @lowmegatron · 2025-10-13 original
The author promotes the Hypothyroid Masterclass, a video course with a support community, aimed at people whose thyroid labs are 'normal' but who feel hypothyroid. The post lists the course modules. The quoted post is only a link.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The post quotes Ray Peat saying the skin test for iodine deficiency is unscientific because reductants convert iodine to colorless iodide. The embedded quoted post from lowmegatron quotes text linking excess iodide to autoimmune thyroiditis and adds a bracketed comment about selenium, vitamins C and E, and polyunsaturated fats.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The author claims stress, defined as energy demand exceeding supply, slows metabolic rate through effects on thyroid hormones, causing 'hidden hypothyroidism' that blood tests often miss. The post appears to open a thread.
Source summary and thread relationship - @lowmegatron · 2025-10-14 own thread
lowmegatron argues that hypothyroidism is reduced thyroid gland output, but symptoms come from low T3, the active hormone. He says problems after the hormones leave the gland can still cause hypothyroid symptoms, which he calls hidden hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-10-14 own thread gap
lowmegatron lists what he presents as indicators of low cellular thyroid activity: feeling cold, high reverse T3, high reverse T3:T3 ratio, hypothyroid symptoms, low resting metabolic rate, and low waking basal temperature.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The post quotes Ray Peat describing people with extreme hypothyroidism who oscillated between depression and mania. In his account, temperature was low during depression, and pulse and temperature were at Broda Barnes' target in mania.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The author announces that their course on low thyroid is live, offering video lessons and a support community. It is described as covering hormones, tests, diet, supplements and lifestyle, with a focus on proper testing, hidden hypothyroidism and causes of thyroid hormone suppression.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The author says aromatase inhibitors regenerate the thymus by reducing testosterone-to-estrogen conversion. They support this with a quoted passage on aging rats, which notes that testosterone alone probably does not explain age-related thymic atrophy. An embedded post by lowmegatron claims hypothyroidism shrinks the thymus and impairs immune function.
Source summary and thread relationship - @lowmegatron · 2025-10-14 original
The author shares signs of stress that can indicate low thyroid hormone activity, but the signs themselves are not in the retrieved text. The embedded lowmegatron post claims stress causes hidden hypothyroidism, slows metabolic rate via thyroid hormones, and often goes undetected in blood tests.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
The author quotes a 1967 J Clin Endocrinol paper reporting decreased stage 3 and 4 sleep in hypothyroidism, with an increase after desiccated thyroid treatment in four of seven patients re-studied. The embedded post by MichaelLexner is an n=1 anecdote about taking T3 before bed and not waking to urinate.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
The post is a quotation from Broda Barnes stating that thyroid deficiency is among the causes of infertility, citing thyroidectomized animals that lack reproductive power and his own cretinized swine that never came into detectable estrus.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
Author describes a study in which depressed participants were warmed with infrared lights to 101°F, then slowly cooled. Hamilton depression scores reportedly improved by about 6 points, and by about 10 points for some a few weeks later. The embedded post is a Ray Peat quote linking low temperature in hypothyroidism to depression and higher temperature to mania.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
Author presents a graph of symptom-questionnaire scores for people switched from levothyroxine/T4 to natural desiccated thyroid (NDT), reporting 90% improved, 6% unchanged and 3% deteriorated. Author claims levo/T4 suppresses TSH but often leaves T3 inadequate, and that NDT's benefit is due to its T3. Quotes a paper noting NDT's potential benefit in selected symptomatic patients after careful consideration.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
Author asserts that standard tests miss a lot in people with slow metabolism and 'normal' thyroid labs, that levothyroxine rarely restores active thyroid hormone, and that hormone conversion is often ignored. Promotes their hypothyroidism video course and community.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
Author shares patient testimonials, attributed to PMID 38260143, describing improvements in mood, sleep, energy, focus and daily function after switching from levothyroxine to NDT, with several patients reporting severe symptoms on levothyroxine. One patient notes a sweet spot between too little and too much NDT.
Source summary and thread relationship - @lowmegatron · 2025-10-15 original
Ray Peat quote claims hypothyroid people do not reach deep restorative sleep, and the post adds a 1967 EEG study abstract reporting reduced stage 3 and 4 sleep in 7 hypothyroid patients, with an increase after desiccated thyroid therapy in 4 of them.
Source summary and thread relationship - @lowmegatron · 2025-10-16 original
The author shares a patient report of improvement after switching from levothyroxine to NDT, including clearer eczema, no more hair loss, and less fatigue, dry skin and constipation. He claims NDT's effects differ from levothyroxine because of its T3 content, and that people who don't recover on levothyroxine can't make enough T3 from it.
Source summary and thread relationship - @lowmegatron · 2025-10-16 original
The author lists supplements, foods and habits they say protect against polyunsaturated fat (PUFA) and seed oil effects. The lists cover reducing lipid peroxidation, lowering free fatty acids and supporting glucuronidation and sulfation. The author also advises eating mostly saturated fats and avoiding high-PUFA oils. The embedded lowmegatron post has an overlapping saturated fat/PUFA list plus a note on olive oil.
Source summary and thread relationship - @lowmegatron · 2025-10-16 original
The author states that blocking the glucocorticoid receptor lowers glucose and insulin in obese, diabetic mice, and that receptor activation raises free fatty acids. They list interventions said to help lower cortisol. The embedded lowmegatron post quotes a suggestion that coffee's anti-diabetic effect involves inhibiting 11β-HSD1.
Source summary and thread relationship - @lowmegatron · 2025-10-16 original
A Ray Peat quotation says inadequate deep sleep impairs tissue repair, and that thyroid hormone and vitamin D are key for maintaining deep sleep. The embedded lowmegatron post adds Peat's claim about hypothyroid sleep and a 1967 EEG study of 7 hypothyroid patients showing reduced stage 3 and 4 sleep, which increased after desiccated thyroid in 4 patients.
Source summary and thread relationship - @lowmegatron · 2025-10-17 original
The author claims T3 enters the brain about three times more efficiently than T4, quoting cerebrospinal fluid (CSF) percentages, and that low T4-to-T3 conversion may leave less T3 in the brain. The embedded lowmegatron post says higher T3:T4 ratios are sometimes needed for brain symptoms, quoting Ray Peat.
Source summary and thread relationship - @lowmegatron · 2025-10-17 original
The author asks whether psychiatry wastes time using GABA agonist drugs for anxiety and disorders that are energetic in origin. A Ray Peat quotation replies they can be useful for a day or two for rest. The embedded lowmegatron post quotes Peat linking schizophrenia to stress, hypothyroidism, estrogen/serotonin, lipid peroxidation and low energy metabolism.
Source summary and thread relationship - @lowmegatron · 2025-10-17 original
Author explains that the heart's energy comes mainly from oxidative metabolism, which they say depends on thyroid hormone T3. They state that cardiac work (Stroke Work Index) is lower in hypothyroidism and improves with thyroid hormone replacement, and quote a passage attributed to PMID 10843159. The embedded quoted post by lowmegatron links T3 to heart rate and says overtraining and stress lower T3 or its conversion.
Source summary and thread relationship - @lowmegatron · 2025-10-17 original
Author announces their thyroid course, with video lessons and a support community, covering hormones, tests, diet, supplements and lifestyle. They say it focuses on proper testing, hidden hypothyroidism and causes of thyroid hormone suppression. No substantive health explanation is given.
Source summary and thread relationship - @lowmegatron · 2025-10-17 original
Author links CFS/ME to low thyroid hormone activity. They share a testimonial from Paul Robinson (recovery with T3 after being dismissed or misdiagnosed) and a quoted study excerpt reporting lower free T3 and a shift toward rT3 in CFS. They assert that CFS can be caused by hypothyroidism and that medical ignorance of T3 leads to misdiagnosis, while adding that CFS likely has multiple causes.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
The author's post contains only a link with no retrievable text. The embedded quoted post by Swin_Deep says CFS/ME is real, that a thyroid association is real, and that they are a male with CFS sharing their own results via an image.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
Author speculates that heavy tea/coffee consumption may signal failing energetic metabolism, that caffeine resembles T3 in some ways, and that hypoglycemia and hypothyroidism are bidirectionally related. They propose that in these states lipolysis and free fatty acids rise and interfere with thyroid hormone metabolism, which labs may not flag, and that some fibromyalgia doses would be dangerous without thyroid hormone resistance. The quoted Live_eyes2025 post is an anecdote about tea, coffee, sugar, hypoglycaemia and ME/CFS.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
The author claims hypothyroidism shrinks the thymus, and that thymic involution attributed to aging is caused by estrogen, cortisol and low thyroid hormone. The post quotes Ray Peat and a rat study excerpt (PMID 7954684). The embedded lowmegatron post says cortisol shrinks the thymus, citing PMID 4669870.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
The author claims hypothyroidism, including 'hidden' hypothyroidism with normal TSH and T4, lowers testosterone and raises prolactin in men. They say underfeeding and overtraining can downregulate T3. They describe mechanisms involving TRH, prolactin, GnRH, LH and STAR protein. The embedded lowmegatron post says stress causes hidden hypothyroidism that blood tests often miss.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
The author asserts that standard thyroid tests miss low metabolism, that levothyroxine rarely restores active thyroid hormone, and that thyroid hormone conversion is often ignored. The post invites readers to buy their hypothyroidism course. The quoted lowmegatron post contains only a link.
Source summary and thread relationship - @lowmegatron · 2025-10-18 original
The post lists health outcomes that 'forever chemicals' are said to cause. The embedded lowmegatron post gives the same list and adds that nonstick coating chemicals were subject of a decades-long coverup. It says the official safe daily exposure is around one hundred millionths of an ounce, and that the primary exposure risk is drinking water.
Source summary and thread relationship - @lowmegatron · 2025-10-19 original
Post quotes Ray Peat saying stress-suppressed thyroid function may not respond to synthetic T4 because stress can block T4-to-T3 conversion. The embedded post from lowmegatron claims stress causes hidden hypothyroidism that often goes undetected on blood tests.
Source summary and thread relationship - @lowmegatron · 2025-10-19 original
Post quotes a clinical thyroidology article arguing hypothyroidism should be defined by insufficient tissue T3 effect, with symptoms plus FT4 and FT3 as best indicators and TSH unreliable. The embedded post from lowmegatron shares patient reports of improvement on NDT versus levothyroxine and claims about why NDT differs.
Source summary and thread relationship - @lowmegatron · 2025-10-19 original
Post shares patient testimonial quotations about switching from levothyroxine to NDT, reporting more energy, motivation, clearer thinking and reduced brain fog, citing PMID 38260143. The embedded post adds further patient reports of improved mood, sleep and function on NDT versus levothyroxine.
Source summary and thread relationship - @lowmegatron · 2025-10-19 original
Author states hypothyroidism can cause Raynaud's, explaining that thyroid hormone supports oxidative metabolism, raising carbon dioxide and heat, with CO2 acting as a vasodilator. It quotes a case report of a man with primary hypothyroidism whose Raynaud's symptoms disappeared after T4 replacement.
Source summary and thread relationship - @lowmegatron · 2025-10-20 original
The author shares a Ray Peat quote linking low thyroid function inflammation to vitamin D deficiency. It says TSH and parathyroid hormone promote inflammatory processes, and that vitamin D, more calcium or less phosphate relative to calcium lower both hormones. A paper title on L-thyroxine and chronic urticaria is appended. The embedded post by lowmegatron says TSH/T4 tests are blind to downstream thyroid hormone issues.
Source summary and thread relationship - @lowmegatron · 2025-10-20 original
The author shares excerpts from a press report on a study saying thyroid hormone coordinates brain and body to drive exploratory behavior. The author adds that scientists 'rediscover' T3's importance for mood and behavior and that its effects are opposite to serotonin's. Excerpts describe mouse experiments in which more thyroid hormone in the cortex increased exploration and risk-taking, while blocking its action removed the effect.
Source summary and thread relationship - @lowmegatron · 2025-10-20 original
The author argues that subclinical hypothyroidism is not harmless: high TSH is linked to inflammation, dyslipidemia and higher cardiovascular risk. They quote passages from a paper (PMID 26674140). The embedded quoted post from lowmegatron links subclinical hypothyroidism to diabetes and insulin resistance.
Source summary and thread relationship - @lowmegatron · 2025-10-21 original
The post quotes text on carotenemia: in hypothyroidism it is attributed to deficient conversion of carotene to vitamin A and hypercholesterolemia. Excess dietary carotene is named as the most common cause, and other disease states and wartime plant-based diets are also mentioned. The sources are listed as titled references.
Source summary and thread relationship - @lowmegatron · 2025-10-21 original
The post advertises the Hypothyroid Masterclass, described as teaching practical testing, nutrition and dosing concepts with a support community, and lists its video modules. The embedded quoted post from lowmegatron contains only an emoji and a t.co link.
Source summary and thread relationship - @lowmegatron · 2025-10-21 original
The author states insulin resistance is higher in people with lower T4, even within the normal range, quoting two papers (PMID 35385635, 17090642) that link low-normal free T4 to insulin resistance and cardiovascular risk. The embedded quoted post from lowmegatron links subclinical hypothyroidism to diabetes.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
The author states that increasing CO2 reduces migraine headaches, citing an RCT with a rebreathing device. They propose mechanisms (vasodilation, more oxygen delivery, lower CGRP) and mention thyroid hormone optimization and Buteyko breathing as other ways to retain CO2.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
The author shares a patient report of feeling better on NDT than on levothyroxine, with improved energy, sleep, skin and brain fog. He attributes the difference to NDT's added T3, which he says also helps kickstart T4 conversion.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
The author shares a Ray Peat quote that thyroid hormone is the most important promoter of CO2 formation. The embedded quoted post is the author's earlier post of a Ray Peat and Bud Weiss audio talk on the biology of CO2 with a detailed topic timestamp list.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
The author shares a Ray Peat quote that CO2 binds insulin and may explain thyroid effects in diabetes. The embedded quoted post from the author says subclinical hypothyroidism is associated with a 2x increase in diabetes and argues that low T3 shifts fuel use and promotes insulin resistance.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
The author promotes their Hypothyroid Masterclass, described as covering the thyroid system, diseases, hormone metabolism, medications and how diet and stress can shift hormones. It includes videos and a support group. The quoted post contains only a link.
Source summary and thread relationship - @lowmegatron · 2025-10-22 original
Author quotes a passage from a study titled 'All Night Sleep Studies in Hypothyroid Patients, Before and After Treatment'. The passage says stages 3 and 4 sleep are decreased in hypothyroidism and that desiccated thyroid may increase them. The embedded quoted post from lowmegatron pairs a Ray Peat quote on hypothyroid sleep quality with the full study abstract (J Clin Endor 27:1593, 1967).
Source summary and thread relationship - @lowmegatron · 2025-10-23 original
Author shares a quoted excerpt, with PMID 31757552, reporting that BPA reduced T3 and T4 and raised TSH in rats with thyroid tissue damage. Ginger extract alleviated these changes, and the excerpt attributes this to antioxidant action via Nrf-2/HO-1. The embedded lowmegatron post quotes Ray Peat on environmental estrogens such as BPA altering development and DNA methylation across generations.
Source summary and thread relationship - @lowmegatron · 2025-10-23 original
Post quotes Ray Peat saying the polyunsaturated fat in flax seed blocks digestive proteolytic enzymes, impairs protein digestion, inhibits the enzyme needed to form thyroid hormone, interferes with thyroid hormone transport on blood proteins, and blocks thyroid's stimulation of respiration in cells.
Source summary and thread relationship - @lowmegatron · 2025-10-23 original
The posting account says levothyroxine-treated patients are more likely to be depressed when TSH is above 2.5. It quotes a study that proposes 2.5 mU/L as a cut-off for depressive symptoms in T4-treated hypothyroid patients. The account adds that the brain needs enough T3, that many people convert levothyroxine to T3 poorly, and that levothyroxine can lower TSH while tissues remain starved of T3. The embedded quote describes a treatment-resistant depression case that responded to T3 (liothyronine) augmentation.
Source summary and thread relationship - @lowmegatron · 2025-10-23 original
The author invites readers to join a Hypothyroid Masterclass group that has 30 videos and a support group. The post lists topics covered: the thyroid system, disorders caused by low T3, hormone metabolism, medications, and diet and stress effects.
Source summary and thread relationship - @lowmegatron · 2025-10-25 original
Author promotes their Hypothyroid Masterclass, a 30-video course with a support group covering the thyroid system, low-thyroid diseases, hormone metabolism, thyroid medications, and diet and stress effects. The quoted lowmegatron post contains only a link.
Source summary and thread relationship - @lowmegatron · 2025-10-26 original
The author shares a Ray Peat quotation saying that reabsorption of estrogen from a sluggish, bacteria-altered intestine (said to always occur in hypothyroidism) raises systemic estrogen and stresses the liver. Peat is quoted as saying an antibiotic or a daily raw carrot can lower estrogen and cortisol and raise progesterone. The quoted X post is a list of foods and lifestyle items followed by a Erling Haaland description.
Source summary and thread relationship - @lowmegatron · 2025-10-26 original
The post is only a thread title and link on selenium, thyroid hormones, autoimmunity and Hashimoto's. No substantive health claims are in the retrieved text.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron claims selenium is required for thyroid hormone conversion and that a deficiency can cause hypothyroid symptoms even without a diagnosis. He also claims selenium calms autoimmune thyroid processes (Hashimoto's, Graves', thyroid eye disease) and can speed normalization of thyroid hormones during extreme stress.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron describes a 3-month study of 70 women with Hashimoto's antibodies, all on T4. Half received 200 mcg sodium selenite daily and half a placebo. He reports normal antibodies in 25% of the selenium group versus 6% of the placebo group, and a 34% versus 12% fall in TPO antibodies. Thyroid hormones were unchanged. He calls this a '4x remission rate' and quotes the authors' conclusion.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron describes a case study of a woman with Hashimoto's given 50-100 mcg of selenium daily for 14 months. He says 50 mcg had little effect, while 100 mcg cut TPO antibodies by 76%, and that her antibodies rose after supplementation stopped.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron argues selenium's thyroid benefits likely come mainly from immune modulation and effects on reactive oxygen species in the gland, and says it may reduce postpartum thyroiditis. He quotes a review saying supplementation lowers anti-thyroid antibodies in Hashimoto's and in pregnant women with anti-TPO antibodies.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron claims selenium may help autoimmune hyperthyroidism. He says patients given antioxidants including selenium alongside anti-thyroid drugs reached normal hormone levels faster, and that Graves' status correlates with blood selenium. He cites a Graves' orbitopathy trial of 200 μg/day sodium selenite with improved quality of life (over 70% vs 22%) and orbital lesions (61% vs 35%).
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron states that supplementing selenium at 500 mcg/day during acute stress, such as a surgical ICU stay, speeds recovery of normal T4 and T3 levels.
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron claims that combining selenium and myo-inositol reduces thyroid antibodies, lowers TSH and raises thyroid hormones in hypothyroid people, and that it appeared to normalize TSH in a hyperthyroid patient. He also says low selenium and myo-inositol may predispose to hypothyroidism. He gives food amounts he says supply the study doses (83 μg selenium; 600 mg myo-inositol).
Source summary and thread relationship - @lowmegatron · 2025-10-26 own thread
lowmegatron promotes his Hypothyroid Masterclass, a course covering testing, nutrition and dosing with a support community, and lists its on-demand video modules. Modules include thyroid blood tests, T4/NDT/T3 supplementation, iodine and selenium, PUFA and FFA, and drugs that affect thyroid hormones.
Source summary and thread relationship - @lowmegatron · 2025-10-27 original
The author presents a severe myxoedema coma case before and after treatment. Features were hypothermia, kidney failure and TSH >100, and the patient was treated with hydrocortisone and levothyroxine and survived. The quoted case report links the multiorgan dysfunction to severe T3 depletion.
Source summary and thread relationship - @lowmegatron · 2025-10-28 original
The author says a 15-day fasting study showed T3 falling 34% and reverse T3 doubling while TSH and T4 stayed unchanged. They argue that stress lowers T3 even when common labs look fine. The post quotes study excerpts on impaired T4-to-T3 conversion and reduced rT3 clearance, and notes that Angus Barbieri died aged 51. The embedded post, by lowmegatron, says metabolic rate drops after extreme dieting.
Source summary and thread relationship - @lowmegatron · 2025-10-28 original
The post quotes an article on hypothyroidism presenting with psychiatric symptoms (cognitive dysfunction, affective disorders, psychosis), and a historical case report of a woman whose hallucinations and appearance improved within weeks of thyroid treatment. The embedded post is from KruseYouri: 'Thyroid therapy for people in mental clinics'.
Source summary and thread relationship - @lowmegatron · 2025-10-29 original
The author says CFS patients tend to have lower T3 and higher reverse T3 with normal TSH. They interpret this as a thyroid hormone conversion problem and low thyroid hormone activity, and say TSH is useless for identifying deficiency in sick people. An unnamed quoted passage says tissue T3 may be severely reduced. The embedded post from lowmegatron adds a personal T3 recovery anecdote and a study excerpt calling for confirmation.
Source summary and thread relationship - @lowmegatron · 2025-10-29 original
The post announces a thread titled 'Tips to Boost Thyroid Hormones' with a link and attached media. No substantive content is included in the retrieved text.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron says iodine is essential for thyroid hormone synthesis but that deficiency and high doses can both cause thyroid problems, including hypothyroidism, hyperthyroidism or autoimmunity in susceptible people. He cites the RDA of 150 mcg, says intakes above 300 mcg daily may pose risks, and names seafood and dairy as good sources. The quoted parent context (a Ray Peat quote and PMID 25050783 on excess iodine and thyroiditis) is context, not part of this post's own text.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron claims the thyroid adjusts to energy availability, so undereating or chronic overexertion reduces thyroid hormone production, conversion or tissue sensitivity and lowers metabolic rate. He warns against combining fasting with intense exercise. He recommends muscle-focused exercise and suggests mild, careful caloric restriction balanced with periods of adequate intake.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron claims goitrogens, mainly cruciferous vegetables and soy products, can interfere with thyroid hormone levels even before a goiter appears. He says cooking reduces them, so raw or lightly cooked foods are riskier, and that iodine insufficiency increases their effect.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron claims unsaturated fats, especially PUFA from seed oils and from non-ruminant animals fed high-PUFA diets, disrupt thyroid hormone production, transport and binding, and that stress releases them as free fatty acids. He recommends mostly saturated fats (coconut oil, cocoa butter, butter/ghee, cream and cheese, tallow) and lists oils to avoid, including fish oil.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron claims phthalates and BPA/S/F in plastics impair thyroid gland function and peripheral thyroid hormone conversion, and that BPA blocks thyroid hormone at the receptor. He lists common sources (fragrance in cosmetics, plastic containers and bottles, can linings, dust, thermal receipts). The quoted context, a separate post citing PMID 31757552, reports a rat study in which ginger protected against BPA-induced thyroid damage.
Source summary and thread relationship - @lowmegatron · 2025-10-29 own thread
lowmegatron promotes his Hypothyroid Masterclass group as a clear, no-nonsense guide. He says it covers the thyroid system, disorders caused by low T3, hormone metabolism, medications, and how diet and stress affect test numbers, with 30 videos and a support group.
Source summary and thread relationship - @lowmegatron · 2025-10-30 own thread gap
lowmegatron points readers to his course on hypothyroidism and lists links to his threads on the thyroid system, thyroid hormone tests, 'Light is the most effective treatment for Hashimoto's' and 'Stress causes hidden hypothyroidism'. The titles are his claims; the linked pages are not supplied.
Source summary and thread relationship - @lowmegatron · 2025-10-31 original
Author says shingles can cause nerve pain/neuritis, possibly via myelin sheath destruction, and that this can often be improved with vitamin B1. Author adds that low available T3 also causes demyelination, then quotes an old passage describing Stevenson's B1 treatment of neuritis and sciatica cases.
Source summary and thread relationship - @lowmegatron · 2025-10-31 original
Author explains natural desiccated thyroid (NDT): it contains T4 and T3 (about 4-5 times more T4), is dosed in grains, and is sold under many brands. Author says it works well for many people, and that synthetic combinations usually work as well and are more reliable and often cheaper.
Source summary and thread relationship - @lowmegatron · 2025-10-31 original
The author says treating hypothyroidism resolved nasal congestion within 1 month in a study. NOSE scores were reported as perfect and PNIF improved by 21% in men and 11% in women. The author attributes the congestion to mucopolysaccharide buildup and notes the study used levothyroxine (T4), which may not resolve all symptoms.
Source summary and thread relationship - @lowmegatron · 2025-11-01 own thread
lowmegatron invites readers who want more information to take his course, which he says covers hypothyroidism in detail, and gives a link.
Source summary and thread relationship - @lowmegatron · 2025-11-01 original
The post reproduces a long Ray Peat passage claiming caffeine and coffee are protective and nutrient-like, with effects on the thyroid, liver, cancer, progesterone, Parkinson's disease, iron and cell death. An embedded post from lowmegatron cites a prospective cohort study linking higher coffee intake to lower gout risk.
Source summary and thread relationship - @lowmegatron · 2025-11-01 original
The post claims hypothyroidism causes low sperm count, low testosterone, low libido and high prolactin, and that correcting it doubles testosterone, increases sperm count, lowers prolactin and improves libido. It quotes a study excerpt on hypothyroid men treated with thyroxine. An embedded earlier post claims hypothyroidism activates the sympathetic nervous system and raises stress hormones and blood pressure, reversible with thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2025-11-02 original
The post quotes Ray Peat saying adequate fiber and regular bowel function help prevent estrogen build-up that inhibits the thyroid, and that B vitamin or protein deficiency impairs liver estrogen excretion. A parenthetical explains reabsorption of bile-excreted estrogen. The embedded earlier post from the same handle says estrogen can turn the thyroid off.
Source summary and thread relationship - @lowmegatron · 2025-11-03 original
The author says L-carnitine blocks thyroid hormone entry into cells and presents quoted excerpts saying it inhibits T3/T4 nuclear entry, acts as a peripheral thyroid hormone antagonist, and reversed hyperthyroid symptoms at 2 and 4 g/day in a randomized trial.
Source summary and thread relationship - @lowmegatron · 2025-11-03 original
Post shares a Ray Peat quotation arguing that heart enlargement in animal studies came from gigantic thyroid doses, that physiological T3 reversed cardiac fibrosis in rats, and that fibrosis is linked to low oxygen, excess nitric oxide and estrogen, and stress. It quotes an embedded post saying hypothyroidism reduces cardiac oxidative metabolism and work.
Source summary and thread relationship - @lowmegatron · 2025-11-04 original
Author says they have heard methylene blue, aspirin and caffeine might help mitigate brain X-ray damage. The post quotes Ray Peat naming thyroid hormone, magnesium, aspirin and coffee as protective, and an excerpt on the radiation bystander effect. The embedded post links coffee intake to lower colon cancer recurrence and mortality.
Source summary and thread relationship - @lowmegatron · 2025-11-04 original
Author says improving thyroid status with levothyroxine reversed high blood pressure in 50% of patients in a study of very hypothyroid people, quoting the study's results. The embedded post says potassium can lower high blood pressure.
Source summary and thread relationship - @lowmegatron · 2025-11-04 original
Post quotes a paper excerpt linking low T3 and subclinical hypothyroidism to epilepsy severity. It describes stress and adrenal activation inhibiting thyroid function, and disrupted brain energy metabolism, including effects of anticonvulsants.
Source summary and thread relationship - @lowmegatron · 2025-11-04 original
The post quotes a paper (PMID 40649019) stating that roughly one-third of people with recent-onset hypothyroidism have migraine-like headaches that mostly improve after levothyroxine, and that migraine is associated with higher TSH. It also quotes pituitary hormone deficiencies being linked to lower headache prevalence. The embedded quoted post from lowmegatron relays Ray Peat's view that hypothyroidism raises serotonin, contributing to migraines, and that T3 can counter this.
Source summary and thread relationship - @lowmegatron · 2025-11-04 original
The post quotes Ray Peat saying that insomnia can reflect a hypothyroid, fatigued brain that cannot fully relax, and that active thyroid hormone, magnesium and sugar restore brain energy and help sleep come on. The embedded quoted post from lowmegatron quotes a sleep study stating that stages 3 and 4 sleep are decreased in hypothyroidism and that desiccated thyroid treatment may increase them.
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The post quotes Ray Peat suggesting that coffee withdrawal occurs mostly with hypothyroidism, citing his own experience of heavy coffee drinking in the 1970s that ended with no felt need after taking thyroid. The embedded quoted post from lowmegatron cites a study of stage III colon cancer patients (PMID 26940586) reporting that 4 or more cups/day of caffeinated coffee was associated with reduced recurrence or mortality (HR 0.48).
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The post quotes Ray Peat claiming that beans, soybeans, lentils and certain nuts contain antithyroid factors. He says these are major causes of hypothyroidism and congenital low thyroid (cretinism) in populations where beans are a dietary staple, such as China and the Andes.
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The author claims severely depressed people have low thyroid hormone. They quote a study suggesting subclinical hypothyroidism in most patients, which may explain nonresponse to antidepressants. They argue that TSH is a misleading proxy and that ignoring T3 leads to misdiagnosis. The quoted lowmegatron post links TSH above 2.5 to depression in levothyroxine-treated patients.
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The author gives a history of animal thyroid treatment for hypothyroidism, from Murray's 1891 injections to natural desiccated thyroid (NDT) and synthetic T4 and T3. They list improvements after three months of treatment and claim that lab-range errors and T4-only medication now make treatment less effective. The quoted lowmegatron post links hypothyroidism and elevated TSH to migraine.
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The author relays a question about frequent nosebleeds at 35 weeks of pregnancy and whether blood volume increase explains them. The answer is a quoted Ray Peat statement suggesting vitamin K (Thorne Research K2 MK-4 drops) would help, and that raw kale is more harmful to the thyroid. The embedded post by lowmegatron says Weston Price's 'Activator-X' was later identified as vitamin K2.
Source summary and thread relationship - @lowmegatron · 2025-11-05 original
The author claims pregnenolone increases deep sleep, which is essential for testosterone production in men. The post quotes study excerpts on 1 mg oral pregnenolone increasing slow wave sleep and on lower morning salivary testosterone when deep sleep was suppressed. The embedded post quotes a paper reporting decreased stage 3 and 4 sleep in hypothyroidism, possibly increased by desiccated thyroid.
Source summary and thread relationship - @lowmegatron · 2025-11-06 original
The author says coffee may kill bacteria linked to cancer, Alzheimer's, periodontitis, atherosclerosis and rheumatoid arthritis. The mechanism offered is chlorogenic acid inhibiting Porphyromonas gingivalis, supported by quoted MIC and antibacterial findings. The embedded post quotes Ray Peat on coffee withdrawal in relation to hypothyroidism and thyroid.
Source summary and thread relationship - @lowmegatron · 2025-11-06 original
The author claims cannabis changes serotonin receptors, causing psychosis and hallucinations, and that this may explain adolescent cannabis use leading to schizophrenia. The post quotes a mouse study on long-term THC and 5-HT2A receptor hyperfunction. The embedded post quotes material on hypothyroidism presenting as psychosis and responding to thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2025-11-06 original
The author claims brain glucose oxidation is reduced in depression, that T3 is needed for optimal glucose oxidation, and that fixing thyroid hormone availability can reverse low brain energy (depression).
Source summary and thread relationship - @lowmegatron · 2025-11-06 original
The author quotes a study excerpt saying partial substitution of T3 for T4 in hypothyroid patients may improve mood and neuropsychological function, with similar TSH after both treatments. The quoted lowmegatron post says severely depressed people have low thyroid hormone and that TSH can mislead.
Source summary and thread relationship - @lowmegatron · 2025-11-07 original
The author says fasting and high cortisol lower thyroid hormone and suppress TSH, and that common thyroid tests can be misleading under stress because a lower TSH is usually read as higher thyroid hormone. The quoted study text says mild cortisol elevations may mediate fasting-induced changes in TSH and thyroid hormone. The embedded lowmegatron post describes a 15-day fasting study with T3 down 34%, reverse T3 doubled and TSH/T4 unchanged.
Source summary and thread relationship - @lowmegatron · 2025-11-07 original
The post shares a Ray Peat quote saying that traces of allergens in foods or supplements can cause nasal congestion, and that a single dose can keep producing congestion for days depending on intestinal transit time. The embedded lowmegatron post claims that treating hypothyroidism with levothyroxine resolved nasal congestion in a study, based on NOSE scores and PNIF.
Source summary and thread relationship - @lowmegatron · 2025-11-07 original
The author defines goiter and quotes a passage, with no source named in the post, about soybean-diet goitrogenic effects in animals and case reports of goiter in infants on soy products, including regression after switching to goat's milk. The author adds that extra iodine is sometimes proposed as a solution but excess iodine can cause thyroid problems. The embedded lowmegatron post quotes Ray Peat on beans and hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-11-08 original
The author asks whether caffeine is safe for people with a very poor ability to store sugar, and quotes Ray Peat saying that some people stabilized blood sugar quickly using a small amount of coffee with cream at meals, although thyroid is essential. The embedded quoted post (lowmegatron) claims coffee kills periodontitis-causing bacteria and that non-drinkers have about twice the severe periodontitis prevalence.
Source summary and thread relationship - @lowmegatron · 2025-11-08 original
The author lists changes with ginger in hypothyroidism: lower TSH, body weight, waist circumference and fasting blood sugar, plus improved symptoms including cold intolerance and constipation. The dose given is 500 mg ground ginger twice daily for 30 days (PMID 35096113). The embedded quoted post (lowmegatron) describes a rat study in which ginger extract alleviated BPA-induced thyroid damage.
Source summary and thread relationship - @lowmegatron · 2025-11-09 original
The author lists claimed effects of high prolactin, its claimed causes (stress, serotonin, hypothyroidism, low zinc, seed oils, etc.) and things he says may lower it (zinc, DHT, coffee, aspirin, bright light, progesterone, thyroid optimization, etc.).
Source summary and thread relationship - @lowmegatron · 2025-11-09 original
The author quotes text linking hypothyroidism with stuttering and speech/voice disorders, and states that thyroid hormone, like vitamin B1, can raise metabolic rate, increase glucose oxidation and CO2, and correct elevated histamine. The quoted post (lowmegatron) reports that stutterers had lower thiamine and higher histamine.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The author claims hypothyroidism drives mast cell dysfunction (MCAS), citing an experimental study in rats showing increased mast cell numbers, histamine and degranulation.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The post quotes Ray Peat saying TSH and parathyroid hormone activate mast cells and promote inflammation, so vitamin D and thyroid are closely linked. It adds a rat abstract (PMID 8637412) suggesting PTH activates osteoclasts via mast cell histamine. The embedded lowmegatron post claims experimental hypothyroidism in rats increased mast cells and histamine.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The post quotes Ray Peat saying serotonin reuptake inhibitor antidepressants increase prolactin and were found to cause osteoporosis after prolonged use. The embedded lowmegatron post lists symptoms attributed to high prolactin, causes of high prolactin, and factors said to lower it.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The author says MCAS patients are 2-4x more likely to be diagnosed hypothyroid and that the hypothyroid diagnosis excludes many people with symptoms from higher in-range TSH or low thyroid hormone activity missed by TSH testing. A PMID is cited. The embedded post repeats a Ray Peat quote and rat abstract on TSH, PTH, mast cells and osteoclasts.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The post cites a prospective cohort study reporting that eating mushrooms more often was associated with a lower risk of subclinical hypothyroidism. It highlights a ~90% lower risk at 4 or more times per week in obese people. The embedded quoted post from lowmegatron separately argues that subclinical hypothyroidism is not harmless and is linked to inflammation, dyslipidemia and cardiovascular risk.
Source summary and thread relationship - @lowmegatron · 2025-11-10 original
The post quotes Ray Peat answering a question about valerian, GABA channels and insomnia. Peat calls the mechanism good and the drug safe but potentially habit-forming, and describes thyroid helping relaxation and sleep, including an anecdote about giving a doctor Cytomel. The embedded quoted post from lowmegatron quotes a sleep study on hypothyroid patients.
Source summary and thread relationship - @lowmegatron · 2025-11-11 original
The post claims fluoridated water doubles hypothyroidism rates. It notes fluoride was used in the 1950s to suppress thyroid activity in hyperthyroidism and quotes a study comparing practices in the West Midlands (fluoridated) and Greater Manchester (non-fluoridated). It also quotes statements that fluoride is an endocrine disruptor, especially where iodine intake is inadequate. The embedded quote is a Ray Peat statement about avoiding fluoridated water and about bromide.
Source summary and thread relationship - @lowmegatron · 2025-11-12 original
The author proposes that TSH may be a cause of migraine. They cite quoted findings that TSH-deficient patients report fewer headaches and that subclinical hypothyroid patients have higher lifetime migraine prevalence. The embedded lowmegatron post links hypothyroidism, pituitary hormone deficiencies and migraine.
Source summary and thread relationship - @lowmegatron · 2025-11-12 own thread gap
lowmegatron quotes a claim that 420 mg of magnesium is enough on an average diet. The quote says good thyroid function and plenty of calcium, potassium and sodium can reduce the magnesium needed.
Source summary and thread relationship - @lowmegatron · 2025-11-12 original
The author shares an unnamed woman's account of years of failed SIBO treatment. She reports improvement after starting T3 once a low T3 was found despite 'normal' TSH and free T4. The author adds that hypothyroidism is linked to SIBO, citing a Ray Peat quote, an '11x' figure and a PMID-cited quote.
Source summary and thread relationship - @lowmegatron · 2025-11-12 original
Author posts that subclinical hypothyroidism is associated with higher inflammatory markers (CRP, IL-6, ESR) and lipids, and says it is erroneously treated as benign. The post quotes a study excerpt linking this to future cardiovascular risk. The quoted post from lowmegatron gives a Ray Peat quote on thyroid, heart fibrosis and stress.
Source summary and thread relationship - @lowmegatron · 2025-11-12 original
Author shares a Ray Peat quote saying inositol seems safe at a few grams/day and may protect against cataracts, and adds that inositol can help lower thyroid autoimmunity. The quoted lowmegatron post claims selenium plus myo-inositol lowers thyroid antibodies and TSH in hypothyroidism, and gives dietary sources.
Source summary and thread relationship - @lowmegatron · 2025-11-13 own thread
lowmegatron promotes his Hypothyroid Masterclass, described as 30 videos plus a support group. It is said to cover the thyroid system, diseases of low thyroid, hormone metabolism, thyroid meds, and diet and stress.
Source summary and thread relationship - @lowmegatron · 2025-11-13 original
The author argues that TSH, in addition to low T3, promotes atherosclerosis by raising MCP-1, which attracts white blood cells to the vessel wall where they become foam cells. The author says recombinant human TSH raised monocyte MCP-1 gene expression about 70% (1.7-fold) within 5 days. The quoted lowmegatron post reports that subclinical hypothyroidism is linked to higher inflammatory markers and lipids.
Source summary and thread relationship - @lowmegatron · 2025-11-13 original
The post quotes Ray Peat's account of a hypothyroid woman given increasing T4 doses who developed myxedema coma with undetectable T3, and who recovered with intravenous T3. Peat criticizes T4 prescribing monitored by TSH suppression rather than symptoms. The author adds that T4-only treatment in poor converters probably starves the brain of thyroid hormone, citing monkey data and myxedema coma papers favoring T3.
Source summary and thread relationship - @lowmegatron · 2025-11-13 original
Author says ginger decreases fat cell creation, possibly through anti-serotonin effects, and quotes a review abstract (PMID 29193411) listing possible anti-obesity mechanisms. The embedded lowmegatron post reports ginger in hypothyroidism with lower TSH, body weight, waist circumference and fasting blood sugar, and symptom improvements (PMID 35096113).
Source summary and thread relationship - @lowmegatron · 2025-11-14 original
Author reminds readers that excess iodine causes autoimmune thyroid problems, with greater risk in people with prior iodine deficiency or thyroid issues. A quoted abstract (PMID 25050783) links excess iodide to autoimmune thyroiditis and proposes mechanisms.
Source summary and thread relationship - @lowmegatron · 2025-11-14 original
Post quotes Ray Peat on atrial fibrillation: vitamins D, K and calcium stabilize heart rhythm, estrogen promotes hyperventilation and AF tendency, progesterone opposes it, thyroid helps cells retain magnesium, and milk, orange juice and seafood supply stabilizing minerals.
Source summary and thread relationship - @lowmegatron · 2025-11-14 original
Post quotes a paper (PMID 26605033) claiming that the thyroid gland plays a crucial role in determining sexual orientation, citing 12 overlapping cases of same-sex attraction with maternal thyroid dysfunction in pregnancy (P<0.0001, Fisher's exact test).
Source summary and thread relationship - @lowmegatron · 2025-11-14 original
The author claims hypothyroidism slows digestion, leading to constipation and SIBO and more endotoxin absorption from the gut. The author attributes this partly to mucopolysaccharide buildup in the GI tract. A quoted passage reports slower gastric emptying in a hypothyroid group than in controls.
Source summary and thread relationship - @lowmegatron · 2025-11-15 original
The author reports a Danish register study finding higher adjusted risk of suicide (HR 1.31) and unknown-cause death (HR 1.65) in Hashimoto's thyroiditis. In their opinion this is mostly due to inadequate treatment, and they advise optimizing T3, correcting basal temperature, and not relying on TSH alone. The embedded post from lowmegatron cites a study on T3 substitution and mood.
Source summary and thread relationship - @lowmegatron · 2025-11-15 original
The author shares a Ray Peat quote suggesting alcohol cravings may relate to hypothyroidism, because high serotonin activity is often present and alcohol may temporarily compensate. The embedded post from lowmegatron claims low-dose alcohol improves glymphatic drainage in mice, while higher doses impair it.
Source summary and thread relationship - @lowmegatron · 2025-11-16 original
Post shares a Ray Peat quote linking GERD to disturbed gut muscle action and factors including high estrogen, serotonin, prostaglandins, low thyroid, inflammation and small-intestine bacterial overgrowth, suggesting a daily raw carrot. It adds two quoted abstracts (PMID 38803365, PMID 7119407) linking hypothyroidism to esophageal motility problems and reflux.
Source summary and thread relationship - @lowmegatron · 2025-11-16 original
Post shares a Ray Peat quote on improving thyroid hormone conversion: selenium deficiency correction works quickly, intestinal flora problems must be addressed, and other nutritional factors such as daily raw carrot, weekly seafood and liver, sunlight, vitamin D and calcium-to-phosphate balance are often helpful. The embedded post is a lowmegatron thread on selenium and thyroid, whose content is not included.
Source summary and thread relationship - @lowmegatron · 2025-11-17 original
Author criticizes the omission of the thyroid hormone T3, calling it 'insanity'. The post quotes a Medscape post saying overtreating mild or subclinical hypothyroidism in older adults may be more harmful than helpful.
Source summary and thread relationship - @lowmegatron · 2025-11-17 original
Author lists gastrointestinal manifestations of hypothyroidism and quotes a paper (PMID 38803365) saying gastric dysmotility often improves with thyroid hormone replacement and that thyroid function should be evaluated in patients with GI complaints. The quoted post adds a Ray Peat GERD quote and a case report.
Source summary and thread relationship - @lowmegatron · 2025-11-17 original
Author shares a Ray Peat quote saying hypothyroid people incompletely oxidize glucose, causing blood glucose fluctuations and increased appetite, and that appropriate thyroid hormone and sometimes pantothenic acid help. The quoted lowmegatron post claims reduced brain glucose oxidation in depression that T3 availability may reverse.
Source summary and thread relationship - @lowmegatron · 2025-11-17 original
Author states that pregnenolone lowers stress and reduces alcohol cravings at 300-500 mg/day and quotes a trial abstract (PMID 36445398) reporting reduced stress- and cue-induced craving in individuals with alcohol use disorder. The quoted post shares a Ray Peat quote linking alcohol cravings to hypothyroidism and high serotonin.
Source summary and thread relationship - @lowmegatron · 2025-11-17 original
The author quotes Ray Peat saying that with insufficient cholesterol the high postpartum progesterone is unlikely to be maintained, and that pro-inflammatory effects of serotonin and estrogen then predominate, causing depression, joint pain, anxiety and brain edema. The author adds that postpartum depression drugs (brexanolone, zuranolone) relate to allopregnanolone, a progesterone metabolite. They also lay out the cholesterol-to-allopregnanolone pathway and note its dependence on T3 and vitamin A. They cite a postpartum cholesterol and mood study (PMID 8845727). The embedded lowmegatron post quotes a thyroid study on T3, TSH and depression (PMID 9971866).
Source summary and thread relationship - @lowmegatron · 2025-11-18 original
Post quotes Ray Peat saying acetazolamide, caffeine, thyroid and progesterone stimulate respiration and help sleep apnea, that thyroid is the main regulator of respiration, and that obstructive apnea is probably the same condition as other apnea. It pairs this with a quoted conclusion from a systematic review and meta-analysis of acetazolamide for obstructive and central sleep apnea.
Source summary and thread relationship - @lowmegatron · 2025-11-18 original
The post states that TSH can stimulate thyroid cancer. It cites Ray Peat on keeping TSH near zero to reduce recurrences and quotes a report (PMID 11701668) of two papillary thyroid carcinoma patients whose tumors grew after rhTSH injections. An embedded quoted post from lowmegatron links subclinical hypothyroidism to raised inflammatory markers and lipids.
Source summary and thread relationship - @lowmegatron · 2025-11-19 original
The author says drinking 2-4 cups of coffee per day is associated with lower TSH, and that high TSH is itself inflammatory and linked to several conditions. The author also says more than 2 cups per day is associated with a 40% lower risk of subclinical hypothyroidism, citing PMID 37351106. The quoted lowmegatron post reports a rodent study in which decaf coffee increased tight junction protein expression and reduced TLR4 expression in rats fed a high-fat diet.
Source summary and thread relationship - @lowmegatron · 2025-11-19 original
The author claims serotonin is a cause of insulin resistance. The post quotes Ray Peat on intestinal inflammation, endotoxin, nitric oxide and serotonin driving insulin resistance, and a paper excerpt on gut-derived serotonin and glucose tolerance in mice. An embedded post quotes Peat saying T3 best controls serotonin's effects.
Source summary and thread relationship - @lowmegatron · 2025-11-19 original
The author claims low thyroid activity raises serotonin and histamine, causing itching. The post quotes Broda Barnes on winter itch in hypothyroid patients responding to thyroid therapy. An embedded lowmegatron post links seasonal thyroid sluggishness to reduced near-infrared (NIRA) light and Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2025-11-19 original
The author claims a little sugar lowers stress hormones, citing a rat study in which sucrose or saccharin drinking dampened HPA-axis stress responses. An embedded post says fasting and high cortisol lower thyroid hormone and suppress TSH, so thyroid tests can mislead under stress.
Source summary and thread relationship - @lowmegatron · 2025-11-20 original
The post quotes Ray Peat linking reduced deep slow-wave sleep in hypothyroidism, old age, schizophrenia and depression to serotonin and torpor-like brain-stress states. The embedded post quotes Peat plus a 1967 study of EEG sleep in hypothyroid patients, with slow-wave sleep increasing after desiccated thyroid.
Source summary and thread relationship - @lowmegatron · 2025-11-20 original
The author states depression is a low-brain-energy state that can be caused by low thyroid hormone and introduces a thread on the thyroid system's role in depression.
Source summary and thread relationship - @lowmegatron · 2025-11-20 own thread
lowmegatron says T3 is needed for optimal glucose oxidation and that brain glucose metabolism is reduced in hypothyroidism. He quotes text describing reduced brain glucose metabolism in hypothyroid patients that is restored after thyroid hormone replacement, and reduced phosphocreatine to inorganic phosphate ratios.
Source summary and thread relationship - @lowmegatron · 2025-11-20 own thread
lowmegatron says depression is a long-known symptom of hypothyroidism that is now overlooked because of serotonin and psychological theories and misunderstanding of blood tests. He claims blood tests do not reflect tissue status, especially in the brain, and quotes sources on D2 enzyme inhibition and psychiatric presentations. He also quotes an old case report of a woman with psychosis and myxedema whose symptoms resolved after thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2025-11-20 own thread
lowmegatron argues that thyroid testing focuses on TSH and T4 and that many people have poor T4-to-T3 conversion. He claims many depressed people have low T3 and that rising TSH is ignored when T4 is normal. He quotes a study reporting lower T3 and higher TSH across depression severity grades and suggesting subclinical hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-11-20 own thread
lowmegatron claims TSH is influenced by stress and diet independent of T3 status, and that T4 is not a great way to optimise T3. He cites a study identifying a TSH of 2.5 mU/L as the optimal cutoff for predicting depression symptoms in T4-treated hypothyroid patients, versus the usual upper cutoff of about 4.5.
Source summary and thread relationship - @lowmegatron · 2025-11-20 own thread
lowmegatron claims that adding T3 to T4, even without individualized dosing, can improve mood and cognition in hypothyroid patients. He quotes a study in which several cognitive and mood scores were better after T4 plus T3 than after T4 alone.
Source summary and thread relationship - @lowmegatron · 2025-11-20 original
Author says serotonin causes helplessness, reversible by serotonin blockers such as methysergide, and that T3 acts against learned helplessness, probably partly by opposing serotonin. Brain serotonin is said to rise in hypothyroidism in animal experiments. The embedded post says recovery from the Voodoo Death Phenomenon can occur by the same mechanism that caused it.
Source summary and thread relationship - @lowmegatron · 2025-11-21 original
Author lists conditions said to be caused by bacterial endotoxin entering the bloodstream in leaky gut, then lists nutrients, drugs, foods and lifestyle factors said to reduce endotoxin or its inflammatory effects. The embedded post claims pregnenolone curbs alcohol cravings partly through TLR4 inhibition.
Source summary and thread relationship - @lowmegatron · 2025-11-21 original
Author shares a Facebook commenter's anecdote (posted with permission) about depression and feelings of helplessness after a thyroid crash with low T3. The commenter says starting Cynoplus with extra T3 lifted the depression quickly. The commenter also claims many women have inadequate T3. The embedded post says depression is a low brain energy state that can be caused by low thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2025-11-21 original
The post author explains non-exercise activity thermogenesis (NEAT) and says metabolic rate and thyroid hormone T3 strongly influence it. They say higher NEAT helps prevent fat gain, and that hyperthyroid rats and humans move more while hypothyroid rats and women move less. The embedded quoted post from lowmegatron argues that low T3 activity is implicated in depression and that standard TSH/T4 testing is inadequate. It adds cautions about thyroid hormone use.
Source summary and thread relationship - @lowmegatron · 2025-11-21 original
The post is a quotation from Ray Peat. He says gut-derived endotoxin impairs mitochondrial energy production and can cause hypoglycemia. He recommends a balanced natural diet rich in fruit, such as orange juice, whose potassium he says helps handle sugar without disturbing insulin. He says this supports thyroid hormone activation and can restore steady blood sugar within a day or two.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
Author describes a case report of a woman whose manic symptoms after gastrectomy for obesity reportedly resolved within two weeks on 1 g/day activated charcoal, with a quoted mechanism proposing a brain–gut axis. The embedded lowmegatron post claims bacterial endotoxin from leaky gut causes many conditions and lists interventions said to help with endotoxin.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
Author shares a Ray Peat quotation linking Candida growth to hypothyroidism, estrogen excess, stress and poor glucose oxidation. Peat says inflammation and improper glucose oxidation are typical of cancer metabolism, and Candida intensifies the inflammation. He mentions Simoncini.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
Author shares a Ray Peat quotation describing his own experience with desiccated thyroid, which he says brought pleasure and a wish to smile. He also describes suicidal women using thyroid or progesterone, who he says changed from weeping to smiling within hours. The embedded lowmegatron post claims depression is a low-brain-energy state that can be caused by low thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
The author shares Ray Peat's statement that thyroid hormone raises energy, the CO2/lactate ratio, brain temperature and the progesterone-to-estrogen ratio. A second quotation, not attributed in the retrieved text, calls lactate necessary for carcinogenesis. The author then argues CO2 itself has anticancer effects, citing Japanese rodent experiments in which transcutaneous CO2 treated human cancer xenografts. The quoted post from doctorinigo presents a lactate 'Lactagenesis' hypothesis.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
Ray Peat, quoted by the author, recalls reports of a man who became intoxicated after eating sugar because yeast grew in his gut. He attributes such problems to weak digestion from low thyroid, suggests thyroid supplementation would probably resolve the yeast and bacteria problem, and describes experiments attributed to René Dubos on yeast becoming invasive when starved of sugar.
Source summary and thread relationship - @lowmegatron · 2025-11-22 original
The author shares an anonymous Facebook comment, posted with permission, describing a couple's reported results from T3 thyroid hormone. The commenter reports resolution of calcification/sclerosis, myxedema, psoriasis, PMDD and high cholesterol, among other changes. The quoted post from lowmegatron discusses high-dose T4 in bipolar depression.
Source summary and thread relationship - @lowmegatron · 2025-11-23 original
Ray Peat, quoted by the author, suggests pregnenolone avoids the risk of DHEA converting to estrogen when thyroid function is low. He says a small amount of Armour thyroid could quickly lower cholesterol and probably help testosterone, and recommends shellfish, low-fat fish, eggs, liver, cooked potatoes with butter or cream, fruit and cooked greens for nutrients.
Source summary and thread relationship - @lowmegatron · 2025-11-23 original
The post says thyroid hormone (T4) replacement roughly doubled free and total testosterone and halved prolactin in hypothyroid men. It quotes the study's conclusion that primary hypothyroidism can cause reversible hypogonadotrophic hypogonadism. The author adds that the men were still far from optimal and that more progress was possible. The embedded quoted post (lowmegatron) gives a Ray Peat quote on low testosterone and high cortisol.
Source summary and thread relationship - @lowmegatron · 2025-11-23 original
The post says hypothyroidism decreases testosterone and testicular weight. It quotes a rat study of experimentally induced hypothyroidism, which reported lower testosterone and body and testes weight with no change in LH and FSH. The embedded quoted post is the earlier human T4 replacement study post by lowmegatron.
Source summary and thread relationship - @lowmegatron · 2025-11-23 original
The post says subclinical hypothyroidism causes low testosterone and erectile dysfunction. It reports that men with TSH 4.5-10 and normal T4 had lower testosterone, higher prolactin and weaker sperm, and that two thirds reported ED. The post claims TSH above 2.0 should be a red flag but is usually ignored. The embedded quoted post is the earlier rat hypothyroidism post.
Source summary and thread relationship - @lowmegatron · 2025-11-23 original
The post shares a Ray Peat quote saying topical testosterone is safe if diet and thyroid function are good, but that pregnenolone and then DHEA should be tried first to normalize testosterone production. The embedded quoted post is the earlier subclinical hypothyroidism post by lowmegatron.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The post says hypothyroid people move less, quoting a finding that physical activity duration and steps were significantly lower in a subclinical hypothyroid group. The embedded quoted post (lowmegatron) discusses NEAT, claiming T3 and metabolic rate strongly influence it and citing rat and human findings with PMIDs.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The author comments that a person was 'one-shotted by excessive iodine'. The quoted account (RealitysaGame) says they went overboard with an unnamed item ('this'), ended up in thyroid crisis, and needed a couple of months to get it under control. The quoted account advises not to overdo it, without saying not to try it.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The author argues that rising TSH tracks with rising bodyweight because high TSH reflects low thyroid hormone. They say thyroid hormone drives resting metabolic rate and NEAT, so low levels mean lower metabolism and more fat storage. They quote a community-based study (PMID 18362250) reporting a linear association between TSH and weight. The embedded lowmegatron post links NEAT to metabolic rate and T3.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The author says SIBO and IBS can be caused by hypothyroidism and that levothyroxine absorption is reduced by all three conditions. They cite a study reporting that switching from tablet to liquid levothyroxine improved GI symptoms and TSH in patients with SIBO. They argue that dosing to a normal TSH is inadequate and that correcting T3 would improve outcomes more. The embedded lowmegatron post shares an anecdote of SIBO resolving after T3 treatment and adds hypothyroidism-SIBO claims.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The author explains how menstrual-cycle timing affects basal temperature testing for thyroid status. They say hormonal birth control and HRT make the Barnes basal-temperature test unreliable. They quote Broda Barnes on using basal temperature to guide thyroid treatment and on the test's limits.
Source summary and thread relationship - @lowmegatron · 2025-11-24 original
The author advertises the Hypothyroid Masterclass, a video course with a support community, aimed at people with normal thyroid labs who still feel hypothyroid. Most of the post is a list of module topics.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
A brief title-like post naming SIBO and thyroid hormones, with no explanation or claim in the retrieved text.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
The author says two extra cups of coffee per day is associated with about 38–48% lower risk of cirrhosis or death from it. They also say coffee can prevent or reverse alcohol-induced liver damage via several mechanisms. The quoted lowmegatron post links coffee to lower TSH and lower subclinical hypothyroidism risk.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
The author argues that hormones, especially estrogens, shape Candida growth and virulence, using a series of study excerpts. The excerpts say estrogen promotes Candida albicans virulence and immune evasion while progesterone reduces virulence factors. The author notes this is mostly relevant to vaginal candidiasis, not white tongue or GI overgrowth. The embedded post quotes Ray Peat on sugar, yeast, low thyroid and digestion.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
Post quotes Ray Peat saying quick intestinal transit goes with abundant digestive secretions that keep the small intestine free of bacteria, and that good thyroid function and antiseptic foods such as cooked mushrooms, bamboo shoots and raw carrots help.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
The author states that gut serotonin causes obesity and type 2 diabetes, citing a quote from Professor Damien Keating that gut-derived serotonin causes diabetes and obesity and that their findings implicate serotonin as a driver of worsening obesity in humans. The embedded post quotes Ray Peat linking serotonin and torpor-like states to reduced deep sleep and brain stress states.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
The author asks 'Phthlate gut?' and lists health harms attributed to phthalates, including reduced testosterone, reproductive, neurodevelopmental, metabolic, respiratory and thyroid effects. The post quotes a human correlation finding on abdominal obesity and insulin resistance and a mouse study reporting weight gain and metabolic changes. The embedded post by lowmegatron claims phthalates are detoxed by glucuronidation and lists factors said to help or hinder it.
Source summary and thread relationship - @lowmegatron · 2025-11-25 original
The author claims much mental illness begins in the gut because bacterial endotoxin poisons mitochondria and leaky gut lets more endotoxin into circulation. They quote a systematic review and meta-analysis on gut dysbiosis markers in severe mental illness and chronic fatigue. They then list nutrients, foods and other factors they say reduce endotoxin or endotoxin-driven inflammation.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The author lists nutrients, foods and other factors they say can help with high histamine, including correcting hypothyroidism and estrogen dominance. The embedded post from lowmegatron introduces a thread on histamine hacks and lists conditions in which histamine is implicated.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The posting author argues that seed oil (linoleic acid) intake probably plays a large role in Hashimoto's susceptibility, citing a rodent study where a high-linoleic-acid diet was followed by thyroid autoimmunity and hypothyroidism. The author links this to lipid peroxidation and says seed oils are tied to other autoimmune diseases partly via pro-estrogenic properties. The embedded quoted post (lowmegatron) cites register data on suicide and unknown-cause death in Hashimoto's and gives that account's opinion that inadequate treatment, T3 and temperature are involved.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The post pairs a Ray Peat quote saying slight hypothyroidism commonly causes chronic urinary infections, because thyroid hormone and progesterone support IgA and reduce histamine resistance. It then quotes a case report of a woman with recurrent urinary tract infections and slightly raised TSH who had no recurrence for 10 months after levothyroxine 25 mcg.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The post quotes Ray Peat saying stress hormones lower thyroid hormone conversion, so TSH alone cannot diagnose thyroid problems. The embedded quoted post (lowmegatron) says stress causes hidden hypothyroidism that often goes undetected in blood tests.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The post author says healthy low-BMI (underweight) people move less but have higher-than-expected resting energy expenditure linked to higher thyroid hormone levels. The author quotes a study of Chinese adults and a researcher (Sumei Hu). The embedded quoted post (lowmegatron) separately discusses NEAT, thyroid hormone T3 and physical activity.
Source summary and thread relationship - @lowmegatron · 2025-11-26 original
The author announces a live course on low thyroid, with video lessons and a support community. It is described as covering hormones, tests, diet, supplements and lifestyle, with a focus on proper testing, hidden hypothyroidism and causes of thyroid hormone suppression.
Source summary and thread relationship - @lowmegatron · 2025-11-27 original
The author cites a study excerpt claiming high prolactin reduces the conversion of testosterone to DHT by 5-alpha-reductase in men. He adds that hypothyroidism doubles prolactin in men. The quoted context says thyroid hormone doubled testosterone and halved prolactin in hypothyroid men treated with T4.
Source summary and thread relationship - @lowmegatron · 2025-11-27 original
The author says people with TSH in the upper half of the normal range are 70% more likely to have metabolic syndrome. The author also says this is a red flag for thyroid hormone metabolism and that TSH itself is inflammatory, quoting a study on high-normal TSH.
Source summary and thread relationship - @lowmegatron · 2025-11-27 original
The post asks whether supplements can safely raise serum androgens in men if diet is good, and answers with a Ray Peat quote. Peat says pregnenolone has favorable effects. He also says thyroid or aspirin can improve the androgen-to-cortisol/estrogen ratio, and that low-dose DHEA can help if thyroid function is good. An embedded post by lowmegatron links subclinical hypothyroidism to low testosterone and ED in men.
Source summary and thread relationship - @lowmegatron · 2025-11-27 original
The author reports thyroid hormone downregulation in pre-eclampsia, quoting a cross-sectional study. Women with pre-eclampsia had higher TSH, lower free T3 and free T4, and more subclinical and overt hypothyroidism than normotensive women, with severity tracking thyroid dysfunction. An embedded lowmegatron post says improving thyroid status with levothyroxine reversed high blood pressure in 50% of very hypothyroid patients.
Source summary and thread relationship - @lowmegatron · 2025-11-27 original
The author says standard thyroid labs can miss a slow metabolism, that levothyroxine rarely restores active thyroid hormone, and that thyroid hormone conversion is critical but ignored. The post invites readers to the author's hypothyroidism video course and community.
Source summary and thread relationship - @lowmegatron · 2025-11-28 original
The post quotes Ray Peat saying hypothyroidism raises estrogen and nitric oxide and lowers serum osmolarity, and that several agents can correct the fluid imbalance in Ménière's disease. It adds a quoted paper excerpt associating thyroid diseases with Ménière's. The embedded earlier post gives study abstracts on thyroid hormone use, pregnancy and the menstrual cycle in Ménière's disease.
Source summary and thread relationship - @lowmegatron · 2025-11-28 original
The post quotes Ray Peat saying estrogen alters immune function, shrinks the thymus and raises antibody production, linking this to allergies. It adds a paper excerpt that estrogen treatment causes thymic atrophy. The embedded earlier post claims hypothyroidism shrinks the thymus and cites a rat study using antithyroid drugs.
Source summary and thread relationship - @lowmegatron · 2025-11-28 original
The post is a Ray Peat quote arguing that TSH acts on many non-thyroid cell types, and that there is no basis for a lower limit of the normal TSH range unless very low TSH is shown to be harmful. It cites the longevity of pituitary-deficient animals as a counterpoint. The embedded quoted post (lowmegatron) claims upper-half 'normal' TSH is linked to metabolic syndrome and that TSH is inflammatory.
Source summary and thread relationship - @lowmegatron · 2025-11-28 original
The post excerpts a case report of a 54-year-old hypothyroid woman with paroxysmal atrial fibrillation whose palpitations and AF episodes reportedly improved after 6 weeks of levothyroxine. It notes that hypothyroidism may contribute to arrhythmia and that excess thyroid hormone also causes Afib. The embedded quoted post (lowmegatron) gives a Ray Peat quote on nutrients and hormones affecting atrial fibrillation.
Source summary and thread relationship - @lowmegatron · 2025-11-29 original
The author promotes the Hypothyroid Masterclass, a video course with a support community covering practical testing, nutrition and dosing concepts. The post mainly lists the module titles. The embedded lowmegatron post contains only an emoji and a link.
Source summary and thread relationship - @lowmegatron · 2025-11-30 original
The author gives an update on their near infrared light/thyroid antibodies experiment. The blood test sample was damaged in the post, another will be sent, and results are expected in about a week. The embedded lowmegatron post describes the device's arrival and a first 2-minute session per side of the thyroid, with a plan to increase to 8 minutes per side every other day.
Source summary and thread relationship - @lowmegatron · 2025-11-30 own thread
lowmegatron replies in his thread about his near-infrared light and thyroid antibodies experiment, saying "The article is here" with a link. The linked content is not supplied.
Source summary and thread relationship - @lowmegatron · 2025-11-30 original
The author states that depression is a state of low brain energy that can be caused by low thyroid hormone. The embedded lowmegatron post says depression is a common, often overlooked symptom of hypothyroidism. It says blood tests do not reflect tissue or brain status, and it quotes literature and a historical case of hypothyroid psychosis that improved with thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2025-11-30 original
The author links brain fog to thiamine (B1) and thyroid hormone status. They quote Ray Peat's anecdote of B1 relieving brain fog and quote two papers on B1 deficiency symptoms and brain fog in hypothyroidism. They add that T3 and B1 are essential for carbohydrate metabolism and that caffeine can raise glucose oxidation in some contexts. An embedded quoted post from lowmegatron claims T3 augmentation has antidepressant effects tied to brain energy.
Source summary and thread relationship - @lowmegatron · 2025-11-30 original
The author says Ceylon cinnamon was their most useful supplement for regular migraine and they still use a little daily. They summarize a randomized double-blind placebo-controlled trial of cinnamon 600mg three times daily for 2 months, which reported reduced migraine frequency, severity, duration, IL-6 and nitric oxide. They also say keeping blood sugar up, optimizing T3 and raising progesterone relative to estrogen are usually most important.
Source summary and thread relationship - @lowmegatron · 2025-12-01 original
The author argues that in people without a thyroid, levothyroxine-only dosing suppresses TSH relative to blood and tissue T3, so TSH is a poor marker of T3 sufficiency. They cite two PMIDs (a human study on TSH-suppressive dosing and an animal thyroidectomized rat study) and explain tissue-specific T4-to-T3 conversion. An embedded lowmegatron post says TSH is misleading, with a Ray Peat quote on stress lowering TSH and a statement on fasting and glucocorticoids.
Source summary and thread relationship - @lowmegatron · 2025-12-01 original
The author argues that sleep disruption raises stress hormones and free fatty acids, which impair insulin signaling and predispose to type 2 diabetes. The post quotes a sleep-restriction study excerpt in healthy young men. The embedded quote, from lowmegatron, cites a hypothyroid sleep study on reduced stage 3 and 4 sleep and desiccated thyroid.
Source summary and thread relationship - @lowmegatron · 2025-12-01 original
The author asks whether avoiding PUFAs and running long distance lowers hypothyroid risk, quoting Ray Peat that a person relatively free of PUFA recovers quickly from prolonged stress. It also quotes studies on exercise intensity and thyroid hormones and on energy availability in exercising women. The embedded lowmegatron post describes a walking trial in postmenopausal women.
Source summary and thread relationship - @lowmegatron · 2025-12-02 own thread
lowmegatron advises optimizing thyroid to lower prolactin. He claims low thyroid hormones increase TRH stimulation of prolactin and that subclinical hypothyroidism is associated with elevated prolactin. He quotes a study in which hypothyroid cases had lower total testosterone and free T4 and higher prolactin.
Source summary and thread relationship - @lowmegatron · 2025-12-02 original
Author says thyroid antibodies (anti-TPO) are higher in women with melasma and higher still in severe cases, and that estrogen may be involved. Author quotes papers on estrogen and autoimmune thyroid disease and on sex steroid regulation of melanin synthesis via GPER and PAQR7, plus quotes from Ray Peat and Hippocrates. The embedded quoted post claims light is the most effective treatment for Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2025-12-03 original
Author states hypothyroidism is a cause of hyperpigmentation, supported by a Ray Peat quote linking melasma to estrogen excess, energy depletion and thyroid function, and a case report of pigmentation improving after levothyroxine. The author's 🙄 appears to express skepticism about the case report's "no apparent clinical symptoms" wording. The embedded quoted post is the earlier melasma/thyroid antibody post.
Source summary and thread relationship - @lowmegatron · 2025-12-03 original
Author claims hypothyroidism lowers testosterone, shrinks testicles and causes male infertility. Author backs this with quotes from Ray Peat and Broda Otto Barnes, rodent experiments (PTU-induced hypothyroidism, rdw rats with thyroxine treatment), a Nigerian cross-sectional study of infertile men, and a prospective controlled study on sperm morphology. The embedded quoted post claims TSH/T4 and even T3 tests are limited and that T3-activating cells matter.
Source summary and thread relationship - @lowmegatron · 2025-12-03 original
The post reproduces Ray Peat's text on learned helplessness, covering Seligman's work, Richter's rat 'hopelessness' studies and MKUltra context. It adds the statement that T3 has been identified as able to help reverse learned helplessness. It also includes a Facebook comment describing depression lifting after starting Cynoplus with extra T3.
Source summary and thread relationship - @lowmegatron · 2025-12-03 own thread gap
lowmegatron promotes his Hypothyroid Masterclass for people told their labs are normal who still feel hypothyroid. He lists on-demand modules on thyroid testing, conversion, supplementation, nutrition, stress and thyroid-affecting drugs, and mentions a support community.
Source summary and thread relationship - @lowmegatron · 2025-12-03 original
The author says vitamin C supplementation lowered TSH and improved symptoms in people on levothyroxine, citing a small proof-of-concept study. The author also says vitamin C may aid levothyroxine absorption and protect the thyroid from lipid peroxidation. The author personally thinks whole-food vitamin C is safer. The embedded quote is a Ray Peat statement on TSH.
Source summary and thread relationship - @lowmegatron · 2025-12-03 original
The author asserts that subclinical hypothyroidism is associated with insomnia and poor sleep, and that 'there is no such thing as subclinical'. The post quotes a cross-sectional study abstract, Ray Peat on T3, magnesium and sugar restoring brain energy, and an all-night sleep study in hypothyroid patients. The embedded post repeats the sleep study and Peat material.
Source summary and thread relationship - @lowmegatron · 2025-12-04 original
The author says the 5-HT3 blocker ondansetron reverses learned helplessness in rodents, but only at low to moderate doses. The author says ginger compounds are also 5-HT3 antagonists and that serotonin is elevated in learned helplessness and hypothyroidism. The post quotes a rat study abstract.
Source summary and thread relationship - @lowmegatron · 2025-12-04 original
Author claims frequent undereating leads to fat gain even in athletes, via lowered metabolic rate and thyroid hormone changes. Supports this with quoted correlations from a study of elite female gymnasts and runners. The embedded lowmegatron post claims prolonged exercise lowers T3 and raises rT3, and that glucose blunts this.
Source summary and thread relationship - @lowmegatron · 2025-12-04 original
Post poses a question about substances or activities that help induce deep sleep and answers with a Ray Peat quote naming thyroid hormone, vitamin D, calcium and magnesium. The embedded lowmegatron post links subclinical hypothyroidism to insomnia and quotes Peat and a hypothyroid sleep study.
Source summary and thread relationship - @lowmegatron · 2025-12-05 original
Post quotes Ray Peat saying hypothyroidism involves poor absorption and retention of magnesium, sodium and copper. He says extra sodium raises body temperature, lowers aldosterone, helps retain magnesium and improves cell response to thyroid hormone. He adds that low sodium raises adrenaline while enough sodium lowers adrenaline and improves sleep.
Source summary and thread relationship - @lowmegatron · 2025-12-05 original
The author claims zinc is overlooked in thyroid status and may independently contribute to hypothyroid hair loss. He cites studies on zinc preventing exercise-related drops in thyroid hormones, zinc opposing melatonin's thyroid suppression, and zinc raising T3. He speculates zinc helps T4-to-T3 conversion.
Source summary and thread relationship - @lowmegatron · 2025-12-05 original
Author claims more sodium means longer lifespan and better health, quoting a study of country-level sodium intake correlating positively with life expectancy and inversely with all-cause mortality. The embedded lowmegatron post quotes Ray Peat on sodium loss in hypothyroidism and sodium and CO2 supporting ATP.
Source summary and thread relationship - @lowmegatron · 2025-12-05 original
Post presents Ray Peat's claim that US doctors fail to correct hypothyroidism by prescribing T4 instead of T3, and that hypothyroid women are more likely to get cancer. It then quotes an observational study of 23 end-stage cancer patients in whom induced low T4 with T3 was associated with survival beyond expectation.
Source summary and thread relationship - @lowmegatron · 2025-12-05 original
The author quotes Ray Peat on light, winter sickness and estrogen dominance. Peat claims a lack of bright light causes progesterone deficiency, leaving estrogen and prolactin unopposed. He also links this to unsaturated fats and tryptophan and says thyroid supplement needs can be four times higher in December than in July.
Source summary and thread relationship - @lowmegatron · 2025-12-08 original
The post claims hypothyroidism raises stress hormones and histamine, contributing to anxiety, hypertension, blood sugar problems and depression. It cites experimental hypothyroidism data, a T4/T3 combination therapy study and a rat mast cell study.
Source summary and thread relationship - @lowmegatron · 2025-12-09 original
The post quotes Ray Peat saying hypothyroidism causes thymus atrophy, partly from lack of thyroid hormone and partly from excess estrogen and cortisol. The embedded lowmegatron post adds thymus function context and a rat study.
Source summary and thread relationship - @lowmegatron · 2025-12-09 original
The post says birth control pill use is associated with higher hypothyroidism risk, rising with duration. It cites a study of 5116 women in which use over 10 years had OR 3.837. The embedded lowmegatron post quotes Ray Peat on fiber, bowel function and estrogen clearance.
Source summary and thread relationship - @lowmegatron · 2025-12-09 original
The sharing account posts a Ray Peat quote saying cold hands and feet, and oral temperature, can indicate thyroid function without a blood test, with cold extremities being the first sign of failing thyroid function. The embedded post by lowmegatron claims hypothyroidism raises stress hormones and histamine and that T3 added to T4 therapy improves anxiety, depression and quality of life.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The post shares a quoted passage saying thyroid hormone transport across the blood-brain barrier in hypothyroid patients is clinically important but poorly understood, and that T3 may be better than T4 for myxedema coma because it crosses more rapidly and completely into cerebrospinal fluid. The embedded lowmegatron post says T4-only treatment in poor converters probably starves the brain of thyroid hormone, citing monkey experiments.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The author claims hypothyroidism can cause SIBO, which reduces lactase and can lead to lactose intolerance via slowed gut transit and reduced stomach acid. The post supports this with a Ray Peat quote and two PMID excerpts: one on bacterial supernatant reducing sugar-splitting enzymes, one on a higher rate of positive breath tests in patients with a history of hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The author claims hypothyroidism causes water retention ("hyperhydration") and the characteristic puffy look by disrupting extracellular water regulation. The post quotes an abstract (PMID 3823017) on 15 hypothyroid patients showing extracellular hyperhydration with fluid accumulating in the interstitial space.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The author shares a Facebook commenter's account of decades of CFS/ME diagnosis that the commenter says was Hashimoto's hypothyroidism. The commenter reports that T4 was nearly useless but natural desiccated thyroid gradually resolved symptoms, and urges testing FT3. The author frames it as another person misdiagnosed with CFS when the cause was low thyroid hormone. The embedded quoted post from lowmegatron claims CFS patients have lower T3 and higher reverse T3 despite normal TSH.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The author claims hypothyroidism with fast heart rate, high blood pressure and palpitations can be caused by high TRH. The author quotes Ray Peat on TRH effects, explains that TRH is elevated in primary hypothyroidism, and quotes a pharmacology passage on TRH pressor and tachycardic effects. The embedded quoted post from lowmegatron claims hypothyroidism raises stress hormones, blood pressure and histamine.
Source summary and thread relationship - @lowmegatron · 2025-12-10 original
The post quotes Ray Peat recommending carbohydrate (preferably sugar), salty foods, bedtime T3 or ice cream to reduce nighttime stress hormone reactions. It also quotes a 1967 study excerpt that hypothyroidism reduces stage 3 and 4 sleep and that desiccated thyroid may increase them. The embedded quoted post from lowmegatron links subclinical hypothyroidism to insomnia.
Source summary and thread relationship - @lowmegatron · 2025-12-11 original
The post quotes Ray Peat on accumulated unstable fats making endotoxin exposure more inflammatory and stressing the lipid-rich brain with age. The embedded quote, from lowmegatron, lists conditions attributed to endotoxin from leaky gut and a long list of nutrients, drugs and habits said to help.
Source summary and thread relationship - @lowmegatron · 2025-12-11 original
The author argues that oxidized LDL drives atherosclerosis and related cardiovascular events, and that linoleic acid from seed oils is oxidized by lipid peroxidation, which hypothyroidism increases. The post quotes Ray Peat on Broda Barnes' rabbit work and thyroid supplementation, plus excerpts from two papers on LDL oxidizability and thyroid function. The embedded quote, from lowmegatron, claims raised blood free fatty acids cause inflammation and impair artery dilation.
Source summary and thread relationship - @lowmegatron · 2025-12-11 original
Author describes a randomized, double-blind crossover trial of substituting T3 (liothyronine) for T4 (levothyroxine) in hypothyroidism. They report greater weight loss and lower LDL, total cholesterol and apolipoprotein B at equivalent TSH suppression. They add that high cholesterol usually indicates another disease process, here hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-12-13 original
Author says thyroid hormone markers differ in depression but are often ignored. Standard testing focuses on TSH and T4, yet T4 must convert to T3, and many people convert poorly. Depression is associated with low T3, and a raised TSH may be dismissed if T4 is normal. Quoted study excerpts report lower T3 and higher TSH across depression severity grades and suggest thyroid evaluation before antidepressant therapy.
Source summary and thread relationship - @lowmegatron · 2025-12-14 original
Author states hypothyroidism increases adrenaline, quoting Ray Peat on adrenaline sustaining blood sugar and body temperature while disturbing sleep and speeding the heart. A quote from PMID 4766338 says thyroid hormone depresses noradrenaline and adrenaline secretion by blocking production at the cellular level. The embedded post from lowmegatron claims experimental hypothyroidism raised stress hormones and histamine, and that adding T3 to T4 improved anxiety, depression and quality of life.
Source summary and thread relationship - @lowmegatron · 2025-12-14 original
Quoted Ray Peat passage arguing that standard thyroid blood tests (T4, TSH) use ranges so wide that nearly everyone counts as normal. He says this traces to the protein-bound iodine test, later shown not to reflect thyroid function, and that the doctrine that only about 5% of people are hypothyroid persisted anyway.
Source summary and thread relationship - @lowmegatron · 2025-12-14 original
The author says hypothyroidism nearly doubles dementia risk and that the association is worse in people on thyroid medication. They suggest T4-only medication and a lack of diet/lifestyle guidance as the likely reasons, and link lipid peroxidation from insufficient T3 to neurodegeneration. The embedded quoted post mentions a Ray Peat anecdote about dementia recovery with increased body temperature.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The author says subclinical hypothyroidism can elevate prolactin and cause galactorrhea, and presents a quoted case report of a woman whose galactorrhea resolved and prolactin normalized after levothyroxine. The embedded quoted post begins a thread on lowering excess prolactin and lists effects of high prolactin.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The author says excessive cell phone use is associated with higher TSH and lower thyroid hormones in students, and that 900 MHz EMF lowered TSH and thyroid hormones in rats. They recommend keeping distance from the thyroid/brain, using hands-free or a wired headset.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The author says obese women on levothyroxine have lower resting metabolic rates than obese women not on levothyroxine with similar TSH. They argue levo-only therapy does not fully correct metabolism and normal TSH is a poor marker of thyroid hormone metabolism. The quoted post (lowmegatron) says caloric restriction, fasting and low-carb diets reduce T3 conversion.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The author says people with liver cirrhosis cannot make adequate T3, that most T3 is made outside the thyroid, and that some tissue-produced T3 is invisible to blood tests. They quote a study reporting lower serum and urinary T3 in cirrhosis. The embedded post (lowmegatron) quotes Ray Peat on progesterone and T4-to-T3 conversion.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The author says high-dose zinc supplementation normalized T3 and lowered reverse T3 in people with zinc deficiency, and that zinc deficiency may cause hypothyroid symptoms by impairing T4-to-T3 conversion. The author notes this was a high dose in confirmed zinc deficiency. The embedded post (lowmegatron) lists a thyroid T3 checklist.
Source summary and thread relationship - @lowmegatron · 2025-12-15 original
The post quotes Ray Peat saying elevated TSH goes with elevated prolactin, that thyroid hormone supplementation usually corrects prolactin, and that calcium and vitamin D help balance prolactin, parathyroid hormone and cortisol. The post author adds that low thyroid hormone raises TRH, which stimulates TSH and prolactin. The embedded quoted post describes a case report of subclinical hypothyroidism with hyperprolactinemia and galactorrhea that resolved on levothyroxine.
Source summary and thread relationship - @lowmegatron · 2025-12-16 own thread
lowmegatron promotes his Hypothyroid Masterclass Group, listing video modules on hypothyroidism symptoms and causes, blood tests and their problems, pulse and temperature, T3 activity, autoimmunity, conversion, reverse T3, T4/NDT/T3 supplementation, nutrition (iron, iodine, selenium, PUFA), stress, and drugs affecting thyroid hormones.
Source summary and thread relationship - @lowmegatron · 2025-12-16 original
The author claims hypothyroidism raises stress hormones (cortisol, adrenaline, noradrenaline, aldosterone) and histamine, contributing to anxiety, hypertension, blood sugar problems and depression. They cite studies in which stopping thyroid medication raised these hormones, and studies in which adding T3 to T4 improved mood and quality of life. A rat study is cited for higher mast cells and histamine.
Source summary and thread relationship - @lowmegatron · 2025-12-16 original
The author describes a case report of myxedema coma in a woman with 'subclinical' hypothyroidism who was prescribed levothyroxine. She recovered after IV T3, and the author argues that lab ranges missed her condition. The report notes she may not have taken the levothyroxine. The embedded quoted post claims TSH/T4 tests are blind to downstream thyroid hormone issues and that T3-activated cells are what matter.
Source summary and thread relationship - @lowmegatron · 2025-12-16 original
The post quotes Ray Peat saying sugar craving usually reflects a need for sugar caused by hypothyroidism. The author lists how low T3 shifts metabolism from glucose to fatty acid oxidation and impairs glucose uptake. The embedded quoted post links subclinical hypothyroidism to doubled diabetes risk, citing mouse experiments and NHANES analysis.
Source summary and thread relationship - @lowmegatron · 2025-12-16 original
The author claims Bluetooth headsets may cause thyroid issues, quoting a paper that linked longer daily use to thyroid nodules. The embedded quoted post links heavy cell phone use to elevated TSH and lower thyroid hormones in students, and cites rat experiments with 900 MHz EMF lowering TSH and T3/T4. It advises distance and hands-free or wired headsets.
Source summary and thread relationship - @lowmegatron · 2025-12-16 original
The author compiles Ray Peat quotes and cited excerpts arguing that hypothyroidism or low thyroid hormone activity can drive anxiety through raised adrenaline and histamine. The post says T3 added to T4 therapy improved anxiety, depression and quality of life, and that some foods, thyroid or pregnenolone may help. An embedded post by lowmegatron repeats the same thyroid, stress-hormone and histamine claims.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author claims sodium deficiency can cause insulin resistance and rapidly raise noradrenaline and aldosterone. They cite a study (PMID 21036373) where healthy people on a low-salt diet had higher HOMA-IR and 50% higher aldosterone. The embedded Ray Peat quote links sodium intake to aldosterone, magnesium retention, adrenaline and sleep in hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author argues that a 1°C lower core temperature, reflecting low thyroid hormone activity, could add about 120 lb over a decade and that hypothyroidism induces a hibernation-like state. The post describes Broda Barnes's basal temperature test and BMR as thyroid indicators, with cited thresholds. The embedded Ray Peat quote criticizes TSH/T4 reference ranges and the history of the protein-bound iodine test.
Source summary and thread relationship - @lowmegatron · 2025-12-17 own thread
lowmegatron says Broda Barnes developed the Basal Temperature Test as a substitute for BMR testing, and quotes Barnes claiming it matched other thyroid tests, detected hypothyroidism others missed, and that symptoms resolved as temperature rose with treatment. He adds that many people have low resting metabolism from thyroid hormone issues unrelated to the gland, where diet and lifestyle correction is usually enough.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author says a study of isocaloric carbohydrate deprivation (2%) lowered T3 about 25% and raised reverse T3, free T4 and T3 uptake, with TSH unchanged. They say this means thyroid hormone conversion fell, and that TSH-based screening could miss it. They also say free fatty acids doubled and interfere with thyroid hormone activity. The embedded post from lowmegatron quotes Ray Peat on sugar craving and hypothyroidism and outlines a low-T3, fatty acid oxidation and glucose oxidation mechanism.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author shares Ray Peat's view that hypothyroidism and bowel inflammation are key in gout, and that raw carrot salad, aspirin and correcting thyroid function usually resolve it. They cite a paper reporting more hyperuricemia and gout in hypothyroid patients. Further Peat excerpts describe uric acid as an antioxidant and anti-inflammatory defense, and gout symptoms as possibly driven by intestinal endotoxin. The embedded post from lowmegatron reports that coffee intake is associated with lower gout risk.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author argues that some hypothyroidism is reversible with iodine restriction and that excess iodine is as harmful as deficiency. They cite a study in which 12 of 22 patients became euthyroid after 3 weeks of iodine restriction, and in which reintroducing 25 mg iodine daily made them hypothyroid again. They add Ray Peat and a review on excess iodine and autoimmune thyroiditis. They say selenium or vitamin E reduce the risk but do not fully prevent it. The embedded post from lowmegatron covers iodine intake and hypothyroidism rates in Japan and risk factors for iodine-induced thyroid dysfunction.
Source summary and thread relationship - @lowmegatron · 2025-12-17 original
The author claims hypothyroidism causes constipation, citing Ray Peat and a paper reporting a 72% improvement in constipation with T3 plus T4 versus levothyroxine alone. A quoted case describes a 71-year-old woman whose symptoms, including hair loss, improved on T3 and worsened on levothyroxine only.
Source summary and thread relationship - @lowmegatron · 2025-12-18 original
The post quotes Ray Peat on meal frequency: frequent meals help during hypothyroidism and help prevent obesity, while 2-4 meals suffice once thyroid and liver work well. Small meals raise metabolic rate and single big meals increase fat storage. The embedded quoted post from lowmegatron argues lower core temperature in hypothyroidism promotes weight gain.
Source summary and thread relationship - @lowmegatron · 2025-12-18 original
The author states that body temperature is one of the best markers of thyroid hormone activity and is declining over time, and attributes this mainly to inappropriate diets, pollutants, and underdiagnosis and mistreatment of hypothyroidism. Broda Barnes and a paper on decreasing US body temperature are quoted.
Source summary and thread relationship - @lowmegatron · 2025-12-18 original
The author presents a case report of myxedema coma in 'subclinical' hypothyroidism: body temperature 93°F, heart rate 58, TSH 59 with a 'normal' free T4; after T4, T3 and hydrocortisone, temperature rose to 98°F and heart rate exceeded 72 over seven days.
Source summary and thread relationship - @lowmegatron · 2025-12-18 original
The post quotes Ray Peat saying many people become sleepy after eating much carbohydrate and/or salt, that both lower adrenaline, and that carbohydrate can increase thyroid hormone activity and restore tissue energy. A link is included. The embedded lowmegatron post quotes Peat on hypothyroidism raising adrenaline.
Source summary and thread relationship - @lowmegatron · 2025-12-19 original
Author summarizes a trial in which aloe vera juice was associated with lower TSH and TPO antibodies over 9 months in women with subclinical hypothyroidism and Hashimoto's. Free T3 also fell. The author doubts the authors' explanation for the T3 drop and suggests tracking T3 if trying this.
Source summary and thread relationship - @lowmegatron · 2025-12-19 original
The post shares a Ray Peat quote saying regular sleep timing, about six to nine hours a night, is protective and anti-stress, and that prolonged starvation or fasting can shrink the brain. The quoted lowmegatron post links hypothyroidism to reduced deep sleep, citing a 1967 study of 7 hypothyroid patients that reported fewer stage 3 and 4 sleep minutes, with some improvement after desiccated thyroid.
Source summary and thread relationship - @lowmegatron · 2025-12-19 original
The post shares a Ray Peat quote about learned-helplessness experiments in rats, where rescued rats later swam longer. The embedded lowmegatron post quotes Peat on learned helplessness and stress, says T3 can help reverse it, and includes a Facebook comment describing depression lifting after starting Cynoplus with extra T3.
Source summary and thread relationship - @lowmegatron · 2025-12-21 original
The posting account quotes Ray Peat that thyroid and magnesium are often needed to normalize mitochondria and prevent calcification, and clarifies that 'thyroid' here means T3. The embedded post by lowmegatron shares a Facebook commenter's anecdote of many reported improvements after switching to T3.
Source summary and thread relationship - @lowmegatron · 2025-12-21 original
Post pairs a Ray Peat quote with two quoted PMID excerpts. Peat says vitamin D deficiency and hypothyroidism produce similar inflammation, with TSH and parathyroid hormone (PTH) driving mast cell activation and cytokine release. The poster ends with a list of factors that raise PTH.
Source summary and thread relationship - @lowmegatron · 2025-12-22 original
The author says nutrition matters even when taking thyroid hormone. The quoted account (_palmerprescott) describes T3 having no effect for over a year until about a week of zinc supplementation.
Source summary and thread relationship - @lowmegatron · 2025-12-22 original
The author links low thyroid hormone status to liver fibrosis and NAFLD/NASH. They cite human association studies, mouse experiments on T3 and fibrosis, and a resmetirom trial. They say above-range thyroid hormone is also associated with fibrosis and that the goal is an optimal range. The embedded quoted post from lowmegatron claims cirrhosis impairs T3 production.
Source summary and thread relationship - @lowmegatron · 2025-12-27 original
The author presents a case report and commentary from a paper saying thyroid supplementation (natural desiccated thyroid) lowered a hypothyroid patient's raised blood pressure after thyroidectomy. The paper reports that only about 20% of hypertensives normalize, 55% partly improve and 25% do not respond. The quoted post warns that a doctor's presence can raise blood pressure readings.
Source summary and thread relationship - @lowmegatron · 2025-12-27 original
The author says T4/levothyroxine is not thyroid hormone and that high doses of T4 alone can reduce tissue T3 even if labs look fine, supported by a Ray Peat quote. The quoted post is an anecdotal Facebook testimonial reporting many improvements after switching to T3.
Source summary and thread relationship - @lowmegatron · 2025-12-27 original
The post shares Ray Peat's first-person account of reactions to synthetic vitamin C (relief from poison oak, then sore throats, bronchitis and sickness from manufactured ascorbic acid), contrasted with no symptoms from fruit juice. The quoted post summarizes a small proof-of-concept study in which vitamin C lowered TSH and improved symptoms in people on levothyroxine.
Source summary and thread relationship - @lowmegatron · 2025-12-27 original
The author claims ginger reduces lipogenesis, fat mass and waist circumference and shifts metabolism toward fuel burning, and that it improves thyroid markers and lowers serotonin. The post supports this with excerpts from two meta-analysis/clinical papers and one rodent study, plus a quoted post from lowmegatron making similar claims about ginger and fat cells.
Source summary and thread relationship - @lowmegatron · 2025-12-28 original
The author claims hypothyroidism raises noradrenaline, which can increase blood pressure, cholesterol and anxiety. The post quotes Menoff's paper and studies it cites (Christensen, Stoffer) on thyroid hormone and catecholamines. The embedded lowmegatron post presents a case report and paper commentary on thyroid hormone (NDT) lowering blood pressure in some hypothyroid patients.
Source summary and thread relationship - @lowmegatron · 2025-12-28 original
The post shares Ray Peat interview excerpts claiming cooked potato juice or soup can relieve insomnia and help people who cannot digest protein. It presents ketoacid equivalents in potato protein as absorbing ammonia. The author adds that ammonia buildup is neurotoxic and causes insomnia, which is why Peat suggested potato juice.
Source summary and thread relationship - @lowmegatron · 2025-12-28 original
The author claims copper dissolves in human sweat and may be absorbed from copper jewelry. They claim copper optimization benefits immunity, energy, thyroid and cardiovascular health. They quote a study on sweat copper solubility and weight loss of copper bracelets, and a Ray Peat quote on iron and copper interaction.
Source summary and thread relationship - @lowmegatron · 2025-12-29 original
The author explains the Broda Barnes basal temperature test as a proxy for basal metabolic rate and thyroid hormone (T3) activity. They describe how to measure it and cite the normal values. They list factors that can make it unreliable, including birth control pills, HRT and menstrual cycle timing. The embedded post by lowmegatron describes a myxedema coma case report with subclinical hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2025-12-29 original
Post quotes Ray Peat saying optimal thyroid function and a good dose of vitamin B1 can greatly increase learning power. He recounts giving poorly nourished evening English students high-protein cookies with B1 and a pre-class cookie-and-coffee snack, after which they became good students.
Source summary and thread relationship - @lowmegatron · 2025-12-29 original
The author says they receive daily questions about whether one is hypothyroid when tests may be unreliable, which supplement to take and how much thyroid hormone is needed. They say these are reasonable questions without simple answers and link to an explanation.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says 'hypothyroidism' is used for several different conditions that lead to low thyroid hormone activity. True hypothyroidism is when the thyroid gland cannot produce enough hormone, and there are multiple reasons for that.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron defines primary hypothyroidism as a problem in the thyroid gland itself. Secondary is pituitary failure to stimulate the thyroid, and tertiary is hypothalamic failure to stimulate the pituitary.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says Hashimoto's is the main cause of primary hypothyroidism and that handling it differs from secondary or tertiary cases. The author says TSH and T4 are the most common tests and are good at flagging severe primary hypothyroidism. However, TSH is often low or normal in secondary and tertiary cases, and neither test shows T3, which the author calls the critical component.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron claims hypothyroid symptoms mostly come from low thyroid hormone activity inside cells. T3 is the active hormone, but the gland releases mostly T4, which must be converted. The author also says rising TSH in primary hypothyroidism is inflammatory and affects other organs, notably the heart.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says low thyroid hormone activity can cause hypothyroid-like symptoms even when the thyroid produces enough hormone. The author says this is not true hypothyroidism and is not recognized as such medically, because the thyroid, pituitary and hypothalamus are working, but the symptoms are similar because of low T3 activity.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says decreased T4-to-T3 conversion can cause hypothyroid symptoms in someone who would not be diagnosed as hypothyroid. The author states there are many possible reasons for poor conversion and the cause must be identified to fix it.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron states that readings of 97.8 °F (36.6 °C) or below indicate hypothyroidism and readings over 98.2 °F (36.8 °C) suggest hyperthyroidism. The author adds that other factors affect body temperature and the basal test, though less variable than other readings, is not perfect.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says levothyroxine is the most common treatment for true hypothyroidism and is T4, which must be converted to T3. He claims conversion is rarely optimal on levothyroxine alone and that adding some T3 "kickstarts" conversion and gives a more stable T3 supply through the day.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron says diet and lifestyle determine thyroid gland health, hormone conversion, uptake and activity in cells. He claims stress and nutritional deficiencies can rapidly cause low thyroid hormone activity with normal TSH and T4. He cites a woman he spoke with who improved after dietary changes and swapping some workouts for walks.
Source summary and thread relationship - @lowmegatron · 2025-12-29 own thread
lowmegatron argues that questions about hypothyroidism lack one-size-fits-all answers and that anyone offering broad solutions doesn't understand the problem. He promotes his Hypothyroid Masterclass Course, described as 31 short video modules, and lists the topics covered (tests, conversion, reverse T3, T4/NDT/T3 supplementation, nutrients, PUFA, stress, diet, drugs).
Source summary and thread relationship - @lowmegatron · 2025-12-29 original
Author claims cell phone radiation increases subsequent food intake, citing a crossover study in 15 young men where 25 min of RF-EMF exposure raised caloric intake by 22–27%, mostly from carbohydrate, with altered brain energy metabolism on scans. The embedded quoted post (lowmegatron) claims heavy phone use is associated with higher TSH and lower thyroid hormones, and recommends distance or hands-free use.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
The post quotes Ray Peat saying that higher coffee intake, up to five or more cups, is linked to lower liver disease and dementia risk, which he attributes to support of thyroid function, lower nitric oxide and protection of mitochondria. The embedded post (lowmegatron) claims that two more cups per day is associated with 38–48% lower cirrhosis risk or death, and lists proposed mechanisms.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
The post quotes Ray Peat's anecdotes that progesterone or pregnenolone revived old horses and dogs. The author adds that these hormones lower CRH/ACTH, that excess cortisol accelerates aging, and that photos show a dog treated for Cushing's syndrome. The embedded post (lowmegatron) discusses thyroid hormone, lactate and CO2, and rodent data on transcutaneous CO2 against human tumor xenografts.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
Author claims fasting and caloric restriction lower metabolism and thyroid hormone set points, often needing T3 to reset the famine response. A long quote from a paper on TSH and weight-loss hypothyroidism says TSH suppression during thyroid hormone treatment is expected. The embedded post (lowmegatron) claims carbohydrate deprivation cut T3 by 25%.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
Author presents excerpts from a rat study reporting that hypothyroid rats gained more fat and converted less dietary protein into body protein while eating fewer calories. The author adds that T3 appears important for energy and lipid balance, and that hyperthyroid rats balanced higher energy expenditure with higher intake.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
Author lists a chain of claims linking local prostate estrogen production via aromatase, aromatase inhibitors in mushrooms, and lower prostate cancer risk. Support is quoted from four PMID-referenced papers. The embedded quoted post gives a Ray Peat quote on transit time and antiseptic foods.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
Post quotes Ray Peat claiming raw carrots, cooked bamboo shoots and cooked mushrooms contain safe, everyday antibiotics with anti-inflammatory effects. It adds quoted excerpts on carrot polyacetylenes, bamboo phenolics and mushroom proteins active against S. aureus/MRSA. The embedded quoted post reports a cohort study linking mushroom intake to lower subclinical hypothyroidism risk.
Source summary and thread relationship - @lowmegatron · 2025-12-30 original
Author describes a case report of a 16-year-old with hypothyroidism-induced dilated cardiomyopathy and heart failure. He reportedly worsened on levothyroxine and heart failure drugs and then improved markedly on combined levothyroxine and T3. The author says the changes strongly suggest reverse remodeling.
Source summary and thread relationship - @lowmegatron · 2025-12-31 original
The sharing account adds only a link. The embedded post from lowmegatron describes a case report of a 16-year-old with hypothyroidism-induced dilated cardiomyopathy who worsened on levothyroxine and heart-failure drugs and then improved on levothyroxine plus T3. It states that heart size and ejection fraction changed toward normal.
Source summary and thread relationship - @lowmegatron · 2025-12-31 original
Ray Peat is quoted describing a 'high-energy resting state' in which adequate thyroid and magnesium let cells retain energy and stay relaxed. He says magnesium deficiency can cause seizures, insomnia and inflammation. The embedded lowmegatron post adds Ray Peat's claim that hypothyroid people get poor deep sleep, plus a 1967 study of hypothyroid sleep EEG.
Source summary and thread relationship - @lowmegatron · 2025-12-31 original
The author argues that thyroid hormone is essential for heart function and that supplemental T3 is sometimes needed. Two case reports are quoted, one of a child with myxedema heart disease and one of an adult with myxedema cardiogenic shock who improved on liothyronine. The embedded lowmegatron post quotes Ray Peat and studies on T3 and cardiac fibrosis after heart attack.
Source summary and thread relationship - @lowmegatron · 2025-12-31 original
Ray Peat is quoted saying a liver supported by carbohydrate and thyroid can detoxify circulating PUFA via glucuronidation and sulfation, and that nightly PUFA release harms the brain. The author adds lists of nutrients and foods said to support sulfation and glucuronidation. The author also links PUFA peroxidation products to neurodegenerative disease via listed study titles.
Source summary and thread relationship - @lowmegatron · 2026-01-02 original
Author quotes a statement that thyroid dysfunction, particularly subclinical hypothyroidism, was found substantially among IBS patients. Author then lists that hypothyroidism slows transit time, increases serotonin and increases histamine. The quoted lowmegatron post argues hypothyroidism can cause SIBO and lactose intolerance, citing a Ray Peat quote and two PMIDs.
Source summary and thread relationship - @lowmegatron · 2026-01-02 original
Author says T3 is critical for mood and motivation, that low T3 is often missed on basic thyroid labs (TSH, T4), and that basal temperature is the best single estimate, to be combined with labs. Author quotes a paper on hypothyroidism and depression, and the post embeds a lowmegatron post saying depression is a low-brain-energy state that can be caused by low thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2026-01-02 original
The author says thyroid hormone T3 is especially important for heart health, and that hypothyroidism or impaired T4-to-T3 conversion can lead to atherosclerosis, heart failure and heart attacks and limit recovery from them. The post quotes a paper on low T3 syndrome in myocardial infarction and heart failure. The embedded quoted post from lowmegatron describes a case report of a 16-year-old with hypothyroidism-induced dilated cardiomyopathy who improved on combined levothyroxine and T3.
Source summary and thread relationship - @lowmegatron · 2026-01-03 original
The author describes selenium as required for thyroid hormone conversion and as protective of the thyroid. They say deficiency may cause hypothyroid-like symptoms and that supplementation may lower thyroid antibodies in autoimmune thyroid disease, help Graves' eye disease, and speed recovery of thyroid hormones in acute stress. They also list selenium-rich foods and note an upper limit of 400 mcg/day.
Source summary and thread relationship - @lowmegatron · 2026-01-03 original
The post text is only a link with no commentary from the author. The embedded quoted post by JThiel asks why carnivore dieters supposedly heal many health problems and become robust while high-carb vegans develop nutrient deficiencies. It also says the most robust humans in the anthropological record ate a low-carb carnivorous diet.
Source summary and thread relationship - @lowmegatron · 2026-01-03 original
The author asserts that low thyroid hormone decreases immunity and that thyroid hormone needs may increase in winter. The post supports this with quoted statements from Broda Barnes about thyroid therapy, fewer infections and thyroidectomized rabbits, and a Ray Peat statement that people on thyroid supplements often need four times as much in December as in July.
Source summary and thread relationship - @lowmegatron · 2026-01-03 original
The author argues that vitamin A deficiency disrupts thyroid function (higher TSH, goiter, reduced iodine uptake and hormone synthesis/conversion). Support is quoted review and trial excerpts and two PMIDs. The embedded quoted post from Metabolicmonstr gives an anecdote of a low vitamin A diet followed by worse eyesight and TSH rising from 1 to 21.
Source summary and thread relationship - @lowmegatron · 2026-01-04 original
The author claims estrogen increases cocaine use and progesterone decreases it. The support is a quoted review abstract (rat literature) on 17β-estradiol, progesterone and allopregnanolone in cocaine-related behaviours. A Ray Peat quotation also describes estrogen as excitatory, progesterone as calming, and T3 and progesterone as mutually reinforcing.
Source summary and thread relationship - @lowmegatron · 2026-01-04 original
The author argues that levothyroxine (T4) alone does not fully correct slow metabolism or weight gain in hypothyroidism, because T3 drives metabolism. They say high-dose T4 may reduce T3 conversion and release, and that lowering TSH does not necessarily raise T3. They propose improving conversion or adding T3, and say basal body temperature is a better guide than TSH. The archived quoted post from lowmegatron links core temperature to fat gain and describes Broda Barnes's basal temperature test.
Source summary and thread relationship - @lowmegatron · 2026-01-05 original
The post quotes a study finding that participants drinking at least four cups of coffee per day had a 63% lower depression risk than those drinking less than one cup per day. The embedded lowmegatron post quotes Ray Peat saying higher coffee intake (five or more cups) is associated with lower liver disease and dementia risk and that coffee supports thyroid function and mitochondrial protection.
Source summary and thread relationship - @lowmegatron · 2026-01-05 original
The post quotes Ray Peat arguing that a pathologically high TSH is treated as normal, that TSH acts on many non-thyroid cell types and may contribute to edema, fibrosis and cancers, and that no evidence shows very low TSH is harmful. An embedded lowmegatron post claims vitamin A deficiency raises TSH and impairs thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-01-06 original
The author states that hypothyroidism, including subclinical hypothyroidism, raises cholesterol. They say levothyroxine lowers elevated cholesterol in subclinical patients, though less than levo+T3 or NDT. They quote a study excerpt reporting lower total and LDL cholesterol on L-thyroxine. They add that they are not claiming cholesterol itself is bad, but that elevated cholesterol is a good marker for hypothyroidism and other drivers of cardiovascular disease.
Source summary and thread relationship - @lowmegatron · 2026-01-06 original
The author says Buteyko breathing can help with asthma, quoting a Buteyko Breathing Technique paper reporting reduced inhaled steroid and beta2-agonist use. They then give a long Ray Peat quotation linking thyroid function, CO2, lactic acid, adrenaline, endotoxin and nitric oxide to hyperventilation and asthma inflammation. The embedded quote, from lowmegatron, is another Ray Peat passage on protective CO2.
Source summary and thread relationship - @lowmegatron · 2026-01-06 original
The author lists common causes of elevated histamine (such as high estrogen, endotoxin, hypothyroidism and nutrient deficiencies) and conditions in which histamine is implicated. They list things that 'can help', including vitamin E, progesterone, lidocaine, magnesium, l-theanine, thiamine, DAO and vitamin C. The embedded quoted post from lowmegatron opens a thread on 'histamine hacks' and lists the same implicated conditions.
Source summary and thread relationship - @lowmegatron · 2026-01-06 original
The author quotes Ray Peat saying very bright incandescent light restores mitochondrial enzymes governed by thyroid hormone. Peat also claims lack of bright light causes progesterone deficiency, leaving estrogen and prolactin unopposed. The quoted context is the author's own post about a 500-watt halogen work light.
Source summary and thread relationship - @lowmegatron · 2026-01-07 original
Ray Peat describes Russian radiation experiments showing bystander effects in animals and discusses implications for dental x-rays, proposing that radiation-induced estrogen signaling may affect pregnancy outcomes even before conception.
Source summary and thread relationship - @lowmegatron · 2026-01-08 original
States bright light therapy reduces depression in 60% of seasonal affective disorder patients and correlates with reduced TSH. Cites study showing TSH reduction during bright light therapy.
Source summary and thread relationship - @lowmegatron · 2026-01-08 original
Ray Peat states progesterone antagonizes effects of estrogen, cortisol, and aldosterone, which interfere with glucose oxidation. Embedded post discusses thyroid hormone T3, depression, glucose oxidation, and inadequacy of TSH/T4 testing.
Source summary and thread relationship - @lowmegatron · 2026-01-08 original
States hypothyroidism can cause low testosterone in men via prolactin elevation and free testosterone drop, reversible by optimizing TSH and T3.
Source summary and thread relationship - @lowmegatron · 2026-01-09 original
Ronaldo reports having hypothyroidism diagnosed, which slows metabolism and requires medication banned in football.
Source summary and thread relationship - @lowmegatron · 2026-01-09 original
T3 therapy compared to T4 (levothyroxine) alone leads to weight loss and lower LDL cholesterol. Citation PMID: 24783015 provides evidence. Embedded post from lowmegatron explains differences between T4 and T3, role of T3 in metabolism, and body temperature as metabolic guide.
Source summary and thread relationship - @lowmegatron · 2026-01-09 original
Fasting increases gut serotonin which slows metabolic rate. Body limits non-essential functions during insufficient nutrition via higher serotonin, free fatty acids, and lower thyroid hormone. Embedded post from lowmegatron on undereating causing fat gain via adaptive metabolic reduction in athletes.
Source summary and thread relationship - @lowmegatron · 2026-01-10 original
High cortisol causally increases risk of obesity, insulin resistance, type 2 diabetes, insomnia, depression, fatty liver, low T3 thyroid hormone, and high blood pressure. Post introduces tips for cortisol control in thread format.
Source summary and thread relationship - @lowmegatron · 2026-01-10 own thread
lowmegatron says hypothyroidism activates the sympathetic nervous system, raising stress hormones, anxiety, blood sugar and blood pressure. The author cites a study of hypothyroid people who stopped medication, reporting about +60% cortisol and doubled adrenaline, noradrenaline and aldosterone, with diastolic blood pressure dropping as T3 rose with replacement.
Source summary and thread relationship - @lowmegatron · 2026-01-10 own thread
lowmegatron claims hypothyroidism increases cortisol, that many hypothyroid symptoms resemble excess cortisol, and that TSH above 2.0 (or 2.5) is associated with higher cortisol. The author says thyroid hormone T3 regulates 11β-HSD2, which inactivates cortisol, so low thyroid hormone reduces cortisol detox, and that TSH is not a reliable way to assess this.
Source summary and thread relationship - @lowmegatron · 2026-01-10 original
Obesity, especially central obesity, is linked to endocrine abnormalities including thyroid dysfunction. T3 regulates energy metabolism and thermogenesis; both subclinical and overt hypothyroidism correlate with weight gain and reduced metabolic rate. Study of 27,097 individuals shows hypothyroidism linked to higher BMI and obesity prevalence.
Source summary and thread relationship - @lowmegatron · 2026-01-10 original
Estrogen-induced thyroid dysfunction is compensated by elevated adrenaline and cortisol, with inadequate compensation causing hypoglycemia and elevated histamine. Women with hypothyroidism on thyroxine may need increased dosing during estrogen therapy.
Source summary and thread relationship - @lowmegatron · 2026-01-10 original
Daily carrot consumption may produce hormonal shifts similar to antibiotic therapy: lowering cortisol and estrogen while raising progesterone, through bacterial modulation of liver detoxification in low-thyroid individuals with sluggish digestion.
Source summary and thread relationship - @lowmegatron · 2026-01-11 original
Stress-induced cortisol elevation suppresses TSH and impairs thyroid hormone T4-to-T3 conversion while elevating reverse T3, resulting in low functional thyroid hormone despite normal TSH and T4 labs. Free fatty acids further impair T3 metabolism.
Source summary and thread relationship - @lowmegatron · 2026-01-12 original
Author reports personal thyroid experiment results comparing their Graves' hyperthyroidism case to the quoted protocol for Hashimoto's; finds FT3 improved 15-20% but antibodies continued rising on previous trend, questioning efficacy in their condition.
Source summary and thread relationship - @lowmegatron · 2026-01-12 original
The author claims low thyroid hormone can lower androgens, neurosteroids and other steroids derived from pregnenolone, such as DHT, DHEA, testosterone, progesterone and allopregnanolone. He says T3 regulates StAR, which shuttles cholesterol into mitochondria. The quoted context claims hypothyroidism can cause low testosterone with raised prolactin.
Source summary and thread relationship - @lowmegatron · 2026-01-12 original
Hypothyroidism causes atherosclerosis; elevated TSH increases MCP-1 expression which drives atherosclerosis via monocyte recruitment; thyroid hormone replacement (L-T4) improves atherosclerosis markers like CIMT.
Source summary and thread relationship - @lowmegatron · 2026-01-12 original
Depression as hypothyroidism symptom stems from low brain energy; T3 augmentation of SSRIs corrects brain bioenergetic dysfunction in ~40% of treatment responders; TSH testing cannot detect tissue-level hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-01-12 original
Magnesium deficiency impairs thyroid function via decreased hormone conversion, thyroid enlargement, and reduced iodide uptake; low serum magnesium predicts Hashimoto's antibodies and hypothyroidism; Ray Peat explanation of magnesium's role in energy metabolism and thyroid hormone function.
Source summary and thread relationship - @lowmegatron · 2026-01-13 original
Repost of user's report of elevated body temperature (37°C readings in winter with unchanged thyroid dose) attributed to daily 2L milk calcium intake; reference to Ray Peat's anecdote about regenerating limbs.
Source summary and thread relationship - @lowmegatron · 2026-01-13 original
Caloric restriction lowers T3 via decreased T4-to-T3 conversion (not thyroid output); T4 is shunted to reverse T3 instead; TSH suppression during treatment reflects normal adaptation, not overmedication; standard thyroid testing fails to detect this metabolic suppression.
Source summary and thread relationship - @lowmegatron · 2026-01-13 original
Terminal cancer patients showed 4x greater one-year survival when thyroid was shut down via methimazole with T3 replacement versus standard care. 83% exceeded expected 20% one-year survival. Mechanism relates to low T4 association with improved survival in some tumors.
Source summary and thread relationship - @lowmegatron · 2026-01-13 original
Exercise in caloric deficit lowers T3 thyroid hormone and causes amenorrhea; increasing calories can help. CICO model ignores thyroid hormone and metabolic rate adaptation. Cortisol from exercise and low-calorie stress lowers TSH, which doctors may miss. Study tested effects but not TSH.
Source summary and thread relationship - @lowmegatron · 2026-01-14 original
Wearable device heart rate parameters can accurately predict thyroid function in hypothyroidism. Thyroid hormone activity strongly influences resting heart rate; Ray Peat suggests ~85 bpm indicates adequate T3. Resting heart rate trends better than one-off measures; morning measurement most reliable.
Source summary and thread relationship - @lowmegatron · 2026-01-14 original
Ray Peat quote on hypothyroidism-related hormonal dysregulation (elevated adrenalin, estrogen, cortisol; low magnesium) and insomnia treatment with T3 and magnesium. Embedded post by lowmegatron cites study linking subclinical hypothyroidism to sleep disturbance and discusses Ray Peat's mechanism of T3 in brain energization; includes study on sleep stage changes in hypothyroidism before/after desiccated thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2026-01-15 original
Case report of ICU patient with subclinical hypothyroidism presenting with respiratory failure and coma; T4 monotherapy failed but rapid improvement occurred when T3 was added. Embedded post describes similar case of myxedema coma in subclinical hypothyroidism with normal T4 but elevated TSH, treated with T4, T3, and hydrocortisone.
Source summary and thread relationship - @lowmegatron · 2026-01-15 original
Animal model evidence: thyroparathyroidectomy causes learned helplessness (escape deficit) in rats. Low T3 increases brain serotonin correlating with helplessness. Embedded post on serotonin 5-HT3 antagonism (ondansetron, ginger) reversing learned helplessness in rodents.
Source summary and thread relationship - @lowmegatron · 2026-01-15 original
TSH and T4 levels predict resting metabolic rate, weight gain, and obesity. Small TSH/T4 variations from levothyroxine dosing changes associate with significantly altered resting energy expenditure in hypothyroid patients. Active T3 hormone primarily responsible for resting energy metabolism. Embedded post by lowmegatron comparing T3 to T4 monotherapy with weight loss and LDL reduction outcomes.
Source summary and thread relationship - @lowmegatron · 2026-01-16 original
Ray Peat quote on hypothyroidism and small intestinal bacterial/yeast overgrowth. Bacteria in small intestine consume food; thyroid hormone accelerates intestinal transit, primary mechanism for clearance.
Source summary and thread relationship - @lowmegatron · 2026-01-16 original
Hypothyroidism increases mast cell population and histamine content in tissues, with evidence from animal studies showing up to 4.5-fold increases in mast cells and 50% increases in histamine, and evidence of mast cell degranulation.
Source summary and thread relationship - @lowmegatron · 2026-01-16 original
The author presents a quoted case report of a 71-year-old woman whose dizziness, dry skin, constipation, hair loss and brittle nails reportedly improved with tailored thyroid hormone treatment. Her symptoms reportedly returned on levothyroxine 50mcg and improved again after T3 was restarted. The author concludes that T3 and T4 are not equivalent. He also lists the paper's targets: free T3 in the upper 20% of the range, a total T3:reverse T3 ratio of 10:1, and low-normal T4, using individualized T4 and T3 doses with T3 split in two.
Source summary and thread relationship - @lowmegatron · 2026-01-16 original
Hypothyroidism causes anxiety and panic attacks through inefficient glucose metabolism producing lactate instead of CO2, suppressed by adequate thyroid hormone. Multiple mechanisms including elevated histamine, cortisol, serotonin, and reduced carbon dioxide suppress excitatory nerves. Includes Ray Peat quotation and multiple study citations.
Source summary and thread relationship - @lowmegatron · 2026-01-16 original
Progesterone normalizes disturbed sleep by acting as a physiologic sleep regulator rather than hypnotic drug, restoring normal sleep architecture including deep sleep unlike conventional sleeping pills. Doses of 300mg studied.
Source summary and thread relationship - @lowmegatron · 2026-01-17 original
Adrenaline elevation disturbs sleep and indicates defective cellular energy production. Thyroid hormone, salt, sugar, protein, and progesterone restore sleep by acting directly on cellular energy production.
Source summary and thread relationship - @lowmegatron · 2026-01-17 original
Case narrative of patient with years of undiagnosed hypothyroidism misattributed to SIBO despite normal TSH and free T4, with low free T3 ultimately discovered. T3 supplementation rapidly resolved GI symptoms including bloating and resulted in negative SIBO retest. Underlying thyroid hormone conversion issue. Restrictive diets worsened thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-01-18 original
Thyroid controls metabolism and heat production through minute secretions. Shared quotation from Broda Barnes with embedded post from lowmegatron on T3 role in mood, TSH limitations, and basal temperature as assessment method.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
Vegetable fats lower metabolic rates in hyperthyroid animals. Shared quotation from embedded post citing 1949 animal study on soybean oil antithyrotoxic effects.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
Low T3 causes inefficient glucose metabolism producing lactate, associated with panic and anxiety; T3 improves metabolic efficiency. Shares Ray Peat quotation with clarifying note on T3 as medication, then embedded post by lowmegatron detailing mechanisms and citing studies.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
TSH is unreliable for assessing thyroid hormone activity in sick people due to differential pituitary vs. tissue thyroid hormone conversion. Discusses tissue-level hypothyroidism despite normal blood levels and superiority of basal temperature and NDT over T4 dosing.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
Broda Barnes used Armour Thyroid (NDT) to prevent heart disease; discussion of industry preference for levothyroxine and role of polyunsaturated fats in blocking thyroid hormone effects. Historical context on Barnes and basal temperature test provided.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
TSH levels 2.5–5.0 twice as common in women with unexplained infertility. Discusses optimal TSH range, role of TSH in oocyte development, and associations with menstrual disorders and autoimmune thyroid disease.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
Hypothyroidism causes sluggish liver unable to produce sufficient glucose from protein during stress, leading to hypoglycemia; thyroid therapy restores liver function. NDT USP recommended for correcting low metabolic rate.
Source summary and thread relationship - @lowmegatron · 2026-01-19 original
High-dose thiamine 600 mg reduces fatigue in Hashimoto's hypothyroidism. Thiamine supports glucose metabolism impaired in hypothyroidism. Case series of three patients on T4 replacement with persistent fatigue showed regression within hours/days on thiamine.
Source summary and thread relationship - @lowmegatron · 2026-01-20 original
Ray Peat's explanation of estrogen and progesterone's opposing effects on neural excitation, body temperature, and mental function; thyroid and progesterone synergy.
Source summary and thread relationship - @lowmegatron · 2026-01-20 original
Hibernating bears exhibit hypothyroid physiology similar to hypothyroid humans; T4 and T3 reduced to <44% and <36% during hibernation; T3 controls basal metabolic rate.
Source summary and thread relationship - @lowmegatron · 2026-01-20 own thread gap
lowmegatron quotes a paper stating that nitric oxide was higher in pretreatment hypothyroid patients than in non-hypothyroid controls. The source is 'Oxidative Stress and Enzymatic Antioxidant Status in Patients with Hypothyroidism before and after Treatment'.
Source summary and thread relationship - @lowmegatron · 2026-01-20 original
Brief knowledge statement on heat and cold intolerance as symptoms of hypothyroidism with link provided.
Source summary and thread relationship - @lowmegatron · 2026-01-21 original
Critique of thyroid hormone cancer studies; distinguishes T4 (inactive) from T3 (active); argues T4-only supplementation suppresses T3 and increases cancer risk, while T3 in end-stage cancer prolongs survival.
Source summary and thread relationship - @lowmegatron · 2026-01-21 original
SIBO (small intestinal bacterial overgrowth) is 11× more common in hypothyroidism; low thyroid hormone causes slow gut transit and low stomach acid, favoring bacterial repopulation after antibiotics.
Source summary and thread relationship - @lowmegatron · 2026-01-21 original
Ray Peat on protein-induced insulin and cortisol response; meat fat composition effects on estrogen and metabolism; phosphate/calcium ratio in meat and stress activation; sugar effects on cortisol and thyroid.
Source summary and thread relationship - @lowmegatron · 2026-01-21 original
The author claims polyunsaturated fats (PUFAs) disrupt thyroid hormone production, transport and cellular action. The post supports this with a block quote from an article titled 'The Dangers of Fat Metabolism and PUFA' and with Ray Peat quotes that PUFAs block thyroid function and protein-digesting enzymes.
Source summary and thread relationship - @lowmegatron · 2026-01-21 original
The author shares a Ray Peat quote that very hypothyroid people sometimes have bacteria and yeast living in the stomach. The embedded post from lowmegatron claims SIBO is far more common in hypothyroidism and that low thyroid hormone slows gut transit and lowers stomach acid, favoring regrowth after antibiotics.
Source summary and thread relationship - @lowmegatron · 2026-01-22 original
The author quotes Ray Peat and a paper abstract on diabetes and thyroid hormone. Ray Peat says cellular glucose deficiency impairs T4-to-T3 conversion and that T4+T3 combination therapy suppresses TSH. The paper reports lower T3 and higher reverse T3 in diabetes, normalizing with improved hyperglycemia. The embedded lowmegatron post claims stress causes hidden hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-01-22 original
The author claims T3 helps restore hair color, hair growth and skin quality. He cites two case reports of gray hair darkening with increased T3 and animal and cell experiments in which T3 stimulated hair growth and follicles entered anagen earlier. He also says hypothyroidism causes hair loss and topical T3 accelerates growth. He cautions that T3 is a metabolic stimulant rather than a hair supplement and should not be used without understanding it.
Source summary and thread relationship - @lowmegatron · 2026-01-22 original
The author claims hypothyroidism generally increases cortisol, with chronic cortisol elevation driving fat gain, high blood sugar and free fatty acid effects. The author says cortisol also lowers TSH and reduces T3 conversion, giving misleading labs. The author speculates that NDT or T4+T3 would have improved the study's results beyond levothyroxine. The embedded lowmegatron post makes related claims citing human and rat studies.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Historical and clinical evidence linking hypothyroidism to arthritis improvement via thyroid treatment, including Barnes' clinical observations and mechanistic explanations involving mucopolysaccharides.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Near-infrared photobiomodulation (PBM) combined with supplements increases T3, reduces thyroid peroxidase antibodies (TPOAb), and reduces levothyroxine dose requirements in Hashimoto's patients.
Source summary and thread relationship - @lowmegatron · 2026-01-23 own thread
lowmegatron links a Substack article. The post does not show the article's content; the root thread concerns near-infrared light and Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Endotoxin from intestinal bacteria suppresses thyroid hormones and testosterone production through multiple mechanisms, with supporting evidence from human and animal studies.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Critique of current thyroid diagnostic standards: TSH and T4 tests are insufficient; low T3 activity (not just hypothyroidism) causes symptoms; historical methods from 1960s-1970s were more effective.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
The author quotes Ray Peat's article, which describes McGavack's 1951 approach to thyroid physiology. On this account, hypothyroidism was suspected from a wide range of symptoms and signs, including hair and skin abnormalities. Physicians used measures such as oxygen consumption, the Achilles reflex, temperature and pulse. A therapeutic trial of thyroid, adjusted to the patient's response, served as the final diagnostic test.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Thyroid hormone levels correlate with caloric intake; caloric restriction reduces T3 conversion and suppresses thyroid hormone despite normal or low TSH, compromising weight loss effectiveness.
Source summary and thread relationship - @lowmegatron · 2026-01-23 original
Hypothyroidism increases cortisol and activates the sympathetic nervous system through reduced T3 levels, which impairs cortisol detoxification via 11β-HSD enzymes; TSH levels above 2.0-2.5 may be abnormally high based on cortisol elevation.
Source summary and thread relationship - @lowmegatron · 2026-01-24 original
JFK diagnosed hypothyroid in 1955 and started T3-only treatment early, potentially before T3's official market introduction in 1956; treatment involved basal metabolic rate testing rather than TSH/thyroid blood tests.
Source summary and thread relationship - @lowmegatron · 2026-01-24 original
Ray Peat describes growing pains, heart failure, and fibromyalgia as related to hypothyroidism and water/calcium retention in muscle cells; estrogen blocks thyroid function causing these conditions, reversible with thyroid hormone treatment.
Source summary and thread relationship - @lowmegatron · 2026-01-25 original
Author argues higher TSH, including within the normal range, is linked to insulin resistance and type 2 diabetes risk. The post cites an experimental subclinical hypothyroidism study (animal, emoji-marked) and a human retrospective study of TSH and HOMA-IR.
Source summary and thread relationship - @lowmegatron · 2026-01-26 original
Author quotes a paper reporting decreased magnesium concentration in skeletal and cardiac muscle of hypothyroid rats, with magnesium distribution and retention depending on thyroid status.
Source summary and thread relationship - @lowmegatron · 2026-01-27 original
Promotion of Hypothyroid Masterclass video course with affiliate/tracking link.
Source summary and thread relationship - @lowmegatron · 2026-01-27 original
Knowledge claim connecting thyroid hormone suppression in hibernating ground squirrels to hypothyroidism-induced metabolic slowing and obesity, with citations to magnesium paper and basal temperature testing methodology.
Source summary and thread relationship - @lowmegatron · 2026-01-27 original
The author claims dieting and fasting can reset the metabolic set-point downward in some people by lowering T3 and raising reverse T3, hindering weight loss. He says thyroid levels may need correcting and that TSH is a useless marker for dosing, since thyroid replacement during weight loss suppresses TSH. Quotes are from Rowsemitt and Najarian.
Source summary and thread relationship - @lowmegatron · 2026-01-27 original
Ray Peat quotation on thyroid hormone deficiency causing anxiety due to impaired reward-sensing in affected body regions, and relationship to metabolic euphoria.
Source summary and thread relationship - @lowmegatron · 2026-01-28 original
Adrenaline and noradrenaline lower immunity and are elevated in hypothyroidism, partly explaining Broda Barnes' findings of recurrent infections in hypothyroid patients. Cites PMID 32045472 on β2-adrenergic receptor modulation of host immune response to viral infection. Includes Barnes' clinical observations on thyroid removal effects and thyroid therapy outcomes.
Source summary and thread relationship - @lowmegatron · 2026-01-28 original
Thyroid hormone doubles testosterone in hypothyroid men, with both free and total testosterone doubling, prolactin dropping significantly, while men remained hypothyroid (TSH 5.3) on average. Study link provided but not accessible in retrieved text.
Source summary and thread relationship - @lowmegatron · 2026-01-29 original
Higher TSH within normal range associated with advanced liver fibrosis (MAFLD). T3 thyroid hormone limits fibrosis. Cites PMID 36604612 and PMID 35641932 on TSH and T3 mechanisms. Embedded comprehensive quote from lowmegatron covers thyroid hormone, fibrosis, NAFLD, animal studies, human drug trials (resmetirom), and fibrosis in other tissues.
Source summary and thread relationship - @lowmegatron · 2026-01-29 original
Author argues that hypothyroidism and higher TSH, even within the normal range, are linked to insulin resistance and type 2 diabetes. They cite Broda Barnes' clinical observations, an animal study (PMID 37884783) on TSH-linked inflammatory pathways, and a human retrospective study (PMID 29342130) on TSH and HOMA-IR.
Source summary and thread relationship - @lowmegatron · 2026-01-29 own thread gap
Quotes a study conclusion that hypothyroidism is tied to higher dementia and mortality risk and that adding T3 may mitigate this better than LT4 alone. The author adds that T4 must convert to T3, many cannot convert enough, and T4 suppresses TSH effectively, misleading those who rely on T4/TSH labs.
Source summary and thread relationship - @lowmegatron · 2026-01-29 own thread gap
The author argues few studies dose T3 individually, so the benefit of proper treatment may exceed what the paper found, and says the goal should be correcting low metabolic rate rather than a fixed T3 dose. It cites two PMIDs. The quoted earlier post claims hypothyroidism nearly doubles dementia risk, worse with thyroid medication, and links lipid peroxidation to neurodegeneration.
Source summary and thread relationship - @lowmegatron · 2026-01-29 original
Author invites followers who want help understanding hypothyroidism and low thyroid hormone activity to join their Hypothyroid Masterclass Group. The embedded quoted post from lowmegatron promotes a Hypothyroid Masterclass video course.
Source summary and thread relationship - @lowmegatron · 2026-01-30 original
Author states that thyroid hormone affects color vision. Cone cells depend on thyroid hormone, and animal research is said to show adult hypothyroidism reduces green-seeing cones, reversed by thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2026-01-30 own thread
Quotes research summaries claiming cone spectral types are dynamically and reversibly controlled by thyroid hormone in adults; suppressing serum thyroid hormone in adult mice and rats altered cone patterns, raising S-cone opsin and reducing M-cone opsin.
Source summary and thread relationship - @lowmegatron · 2026-01-30 own thread
Quotes the finding that thyroid hormone treatment of athyroid Pax8(-/-) mice restored a wild-type cone opsin pattern, which reverted to the S-opsin-dominated pattern after treatment ended.
Source summary and thread relationship - @lowmegatron · 2026-01-30 own thread
Quotes the conclusion that opsin expression in mature mammalian cones remains controlled by thyroid hormone, challenging the view that opsin identity is fixed by permanent gene silencing. Gives the reference title "Thyroid Hormone Controls Cone Opsin Expression in the Retina of Adult Rodents".
Source summary and thread relationship - @lowmegatron · 2026-01-30 original
Author says stress reduction, by lowering cortisol, adrenaline and glucagon, can improve thyroid hormone conversion. They cite a yoga randomized controlled trial in women with hypothyroidism reporting T3 +17%, T4 +7% and TSH -26%, with the authors concluding moderate-to-large effects.
Source summary and thread relationship - @lowmegatron · 2026-01-31 original
Author states hypothyroidism diminishes color vision and that blue-yellow and red-green color contrast sensitivity improved with thyroid hormone treatment, quoting a study (PMID 25960961) on thyroxine treatment. The embedded quote is an earlier lowmegatron post on thyroid hormone and color vision.
Source summary and thread relationship - @lowmegatron · 2026-01-31 original
Ray Peat explains pregnenolone synthesis requirements and the relationship between cholesterol, thyroid, vitamin A delivery to mitochondria, and stress hormone balance; pregnenolone insufficiency leads to cortisol overproduction and unopposed estrogen effects.
Source summary and thread relationship - @lowmegatron · 2026-02-01 original
Anecdotal quote about thyroid hormone effects (vivid colors, warmth, feeling alive); author notes this observation seems absurd until researched, referencing Dr. Peat's work. Embedded post cites study showing hypothyroidism impairs color vision and improves with thyroxine treatment.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Higher TSH within normal range is associated with arterial stiffness in women and increased pro-stiffness mediators when TSH is administered; upper limit of normal TSH in postmenopausal women may need re-evaluation.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Young children with higher-'normal' TSH show lower cognitive function and higher ADHD symptoms despite being within normal range; study suggests need to re-evaluate TSH upper limit for normal in preschoolers.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Ray Peat quote on historical research linking hypothyroidism to atherosclerosis via thyroid supplementation and cholesterol normalization, with embedded study on TSH and arterial stiffness in postmenopausal women.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Ray Peat on oxygen metabolism impairment in ADHD, with coffee as focus aid, plus cited human and animal studies on cerebral oxygen/glucose metabolism in hypothyroidism and TSH association with cognitive function in preschoolers.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Levothyroxine monotherapy associated with lower well-being in hypothyroid patients compared to healthy controls, attributed to insufficient T3 bioavailability; diet and lifestyle factors affect thyroid hormone conversion.
Source summary and thread relationship - @lowmegatron · 2026-02-02 own thread
lowmegatron quotes an editorial saying that hypothyroid patients adequately treated with T4 score slightly worse on psychological well-being and have more symptoms than matched controls. One possible explanation given is that the T4 dose was not optimal or that T3 was not given.
Source summary and thread relationship - @lowmegatron · 2026-02-02 own thread
lowmegatron quotes Robert D. Utiger, who comments on the Saravanan et al. results. He says it is unhelpful to tell symptomatic patients on adequate T4 that the cause lies elsewhere, and that clinicians should focus less on serum TSH and think about new ways to treat hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
Kelp capsules suppress thyroid function via excessive iodine intake, with mechanism of iodine-induced hypothyroidism. Embedded post details iodine restriction reversibility of hypothyroidism in some patients, lipid peroxidation role, and Ray Peat commentary on excess iodine toxicity and autoimmune thyroiditis.
Source summary and thread relationship - @lowmegatron · 2026-02-02 original
URL link to embedded post of Ray Peat and Bud Weiss video discussion on carbon dioxide biology with detailed timestamped topics.
Source summary and thread relationship - @lowmegatron · 2026-02-02 own thread gap
lowmegatron quotes a study in which greater vitamin A deficiency severity predicted larger thyroid volume and higher TSH and thyroglobulin. The odds ratio for goiter in deficient children was 6.51. In the vitamin A-treated group, thyroglobulin, TSH and goiter rate fell compared with placebo.
Source summary and thread relationship - @lowmegatron · 2026-02-03 original
Mold exposure causes chronic fatigue and brain fog via downregulation of thyroid hormone T3 conversion without affecting thyroid gland function; thyroid hormone supplementation resolves mold-induced hypothyroid symptoms in affected patients, enabling return to work.
Source summary and thread relationship - @lowmegatron · 2026-02-03 original
Ray Peat on hypothyroidism-related low CO2 production, stress-induced hyperventilation susceptibility, and increased ammonia/lactate production; connection to depression and mania. Embedded post frames depression as low brain energy state caused by low thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2026-02-03 original
Broda Barnes research on low basal temperature in migraine patients as indicator of hypothyroidism; Natural Desiccated thyroid increased basal temperature and reduced migraine frequency/severity in 95% within one month. Non-migrainous headaches attributed to multiple causes including hypoglycemia, infection, hypertension, liver/gallbladder issues, and hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-04 original
Hypothyroid children are shorter and hyperthyroid children are taller than average; cited study shows lower height z-score in acquired hypothyroidism and increased height with low BMI in hyperthyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-04 original
The author claims that in the American Midwest two-thirds of people with hair loss are hypothyroid, and that one in four men with hair loss did not know they were also hypothyroid.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
The author says active thyroid hormone T3 restores hair growth and color in experiments. He quotes findings of in vitro hair shaft growth, earlier anagen entry in mice after topical T3, and possible reversal of graying in humans via follicular melanocytes.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
The author claims hypothyroidism causes hair loss and loss of skin vitality, and that topical thyroid hormone accelerates hair growth and rejuvenates skin. He quotes a dose-dependent animal result. He cautions that T3 is a metabolic stimulant, not a hair supplement, and advises fixing metabolism and not using T3 without understanding it.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
This post lists sources for the thread: a paper titled "Prevalence of Thyroid Abnormality Associated with Hair Loss" and PMIDs 17961449, 11525263 and 24481020.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
lowmegatron advises getting sufficient iodine. He says deficiency can lower thyroid levels, high doses can cause hypothyroidism, hyperthyroidism or autoimmunity in susceptible people, the RDA is 150 mcg and intakes above 300 mcg daily may pose risks. He also says X-ray contrast media can trigger problems and that seafood and dairy are good sources.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
lowmegatron advises limiting goitrogens, which he says can interfere with thyroid hormone levels before a goiter is visible. He names cruciferous vegetables and soy as the main offenders, says cooking reduces them and says iodine insufficiency increases their effect.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
lowmegatron claims that polyunsaturated fats from seed oils and from non-ruminants fed high-PUFA diets disrupt thyroid hormone production, transport and binding. He says they are released as free fatty acids during stress, recommends mostly saturated fats (coconut oil, cocoa butter, butter/ghee, cream, cheese, tallow) and lists many oils, including fish oil, to avoid.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
lowmegatron invites readers to join his Hypothyroid Masterclass group and describes a video course he created on hypothyroidism and low thyroid hormone activity, which he calls a clear, no-nonsense guide.
Source summary and thread relationship - @lowmegatron · 2026-02-04 own thread
lowmegatron advises minimizing exposure to plastics and plasticizers, claiming that phthalates and BPA/S/F impair thyroid gland function and peripheral hormone conversion and that BPA blocks thyroid hormone at the receptor. He lists sources such as fragranced cosmetics, plastic containers and bottles, can linings, dust and thermal receipts. The quoted earlier post cites a rat study (PMID 31757552) in which ginger protected against BPA-induced thyroid damage.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
Repost of lowmegatron's analysis of thyroid hormone changes during fasting/dieting, citing a study showing decreased T3/free T3 and increased rT3, with quotes from Rowsemitt & Najarian on metabolic adaptation and TSH management during weight loss.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
Ray Peat quotation on hypothyroidism-induced thymus atrophy via thyroid hormone deficiency and elevated estrogen/cortisol; author explains thymic involution's role in immune function and its attribution to aging-related factors rather than aging itself.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
Artificial sweeteners linked to thyroid damage: case report of Hashimoto's remission after aspartame removal; animal studies show aspartame and sucralose alter pituitary-thyroid axis structure and reduce thyroid hormone production.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
Inhaled CO2 reduces allergic rhinitis and nasal congestion by limiting mast cell degranulation and histamine release; mechanism linked to thyroid hormone effects on cellular CO2 production, with hypothyroidism associated with nasal congestion.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
List of symptoms attributed to hypothyroidism-induced leaky gut, including depression, fatigue, cognitive, joint, skin, gastrointestinal and mental health effects.
Source summary and thread relationship - @lowmegatron · 2026-02-05 own thread
lowmegatron claims T3 'dominates gut health'. He lists four points: dysbiosis is common in Hashimoto's, people with Hashimoto's have leaky gut, experimental hypothyroidism causes leaky gut, and T3 reinforces the gut barrier.
Source summary and thread relationship - @lowmegatron · 2026-02-05 original
Ray Peat quotation on stress hormones (elevated cortisol, decreased DHEA/progesterone/testosterone) driving inflammation, degeneration and depression as a protective shutdown response. Embedded post on hypothyroidism-cortisol relationship, TSH thresholds, T3 effects on cortisol metabolism enzymes, sympathetic activation and blood pressure.
Source summary and thread relationship - @lowmegatron · 2026-02-06 original
Disputes fact-checker claims about before/after photos, arguing they show 6-week recovery from hypothyroidism, not war-related changes; cites PMID on thyroid function and obesity.
Source summary and thread relationship - @lowmegatron · 2026-02-06 original
Alzheimer's patients have lower thyroid hormone levels than non-Alzheimer's controls; mental function improves with higher thyroid hormone; aberrant motor behavior more common with low thyroid hormone; suggests adjunctive T3 treatment potential.
Source summary and thread relationship - @lowmegatron · 2026-02-06 original
Schizophrenic patients have lower thyroid hormone levels; greater symptom severity correlates with lower T3, FT3, and FT4; decreased T3 and T4 are independent risk factors for schizophrenia.
Source summary and thread relationship - @lowmegatron · 2026-02-06 original
The author, citing Broda Barnes, claims ailments attributed to aging are often due to failing thyroid function, and that the TSH/T4 paradigm has made the problem worse. He quotes an anecdote about a 67-year-old man with baldness, low energy, forgetfulness, depression, high blood pressure and low basal temperature. After thyroid therapy his depression lifted, blood pressure normalized and hair regrew, per Barnes.
Source summary and thread relationship - @lowmegatron · 2026-02-09 original
Author argues that blood tests cannot measure thyroid hormone activity in tissues, only circulating levels; T3 activity drives symptoms; basal temperature may better indicate thyroid status than blood tests; and historical diagnosis by symptoms and temperature was superior to current TSH-centric protocols.
Source summary and thread relationship - @lowmegatron · 2026-02-09 original
The author notes that an 1888 early investigation of myxedema found it more frequent in women. Its listed symptoms include excess fat, hair loss, tooth loss, skin changes, increased body bulk, and affections of speech, movement, sensation, consciousness and intellect.
Source summary and thread relationship - @lowmegatron · 2026-02-09 own thread gap
lowmegatron points readers to his video course covering all aspects of hypothyroidism and low thyroid hormone levels, with a link.
Source summary and thread relationship - @lowmegatron · 2026-02-10 original
Author presents case of 86-year-old with elevated TSH after starting Iodoral (high-potency iodine supplement) prescribed by naturopath; TSH escalated to 99 after 1 month despite levothyroxine dose increase; TSH normalized after Iodoral cessation. Includes explanation of Wolff-Chaikoff effect and recovery mechanism with quoted study text.
Source summary and thread relationship - @lowmegatron · 2026-02-10 original
Author documents that soy products interfere with thyroid hormone and levothyroxine absorption, particularly in children. Includes case of child who became profoundly hypothyroid on soy milk despite levothyroxine dose increases, normalizing after switching to cow milk. Discusses phytoestrogen mechanism of thyroid peroxidase inhibition.
Source summary and thread relationship - @lowmegatron · 2026-02-10 original
Author explains that high-dose biotin can interfere with thyroid blood test accuracy without altering actual thyroid hormones or TSH levels, causing false elevations in T3/T4 and false TSH suppression. Includes case of patient on 200 mg/day biotin showing false Graves' disease pattern that normalized after biotin cessation.
Source summary and thread relationship - @lowmegatron · 2026-02-10 original
Author observes a recurring pattern in patient narratives: elderly hypothyroid patients stable on desiccated thyroid (NDT/Armour) for decades experience rapid deterioration when a new doctor switches them to TSH-centric levothyroxine protocols; symptoms return despite normal labs, blamed on aging rather than undertreated hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-10 original
Author explains that free fatty acids block T3 thyroid hormone from binding to nuclear receptors, reducing energy metabolism, and notes this effect is invisible to thyroid blood tests. Claims insulin normally brakes free fatty acid release, and stress elevates them.
Source summary and thread relationship - @lowmegatron · 2026-02-11 original
Quoted Ray Peat claims that nighttime stress and inflammation hormones rise despite ice cream consumption; bright incandescent light reduces them further. Recommends Cynoplus at bedtime instead of Cynomel to maintain T4 and hold down TSH; suggests daily eggs and weekly liver for nutritional support.
Source summary and thread relationship - @lowmegatron · 2026-02-11 original
Author claims hypothyroidism impairs sleep stages 3 and 4, and that active thyroid hormone T3 is needed for proper rest. Includes embedded quote from lowmegatron about progesterone normalizing sleep without suppressing deep sleep.
Source summary and thread relationship - @lowmegatron · 2026-02-11 original
Author claims Broda Barnes treated hypothyroid patients with low basal temperature using natural desiccated thyroid, reducing heart disease diagnoses by 94% compared to Framingham Study predictions. Includes embedded quote from lowmegatron on thyroid testing reliability.
Source summary and thread relationship - @lowmegatron · 2026-02-12 original
Quoted Ray Peat claims that measuring thyroid hormone levels in blood is not a good way to evaluate thyroid function adequacy, since tissue response to hormone can be suppressed by unsaturated fats.
Source summary and thread relationship - @lowmegatron · 2026-02-12 original
Author explains that high free fatty acids interfere with thyroid hormone T4 uptake and conversion to T3, and this effect is invisible to TSH and likely T4 tests. Discusses non-thyroidal illness syndrome where liver fat accumulation reduces conversion, and notes debate over whether thyroid hormone replacement is protective or harmful.
Source summary and thread relationship - @lowmegatron · 2026-02-12 original
Ray Peat's account of developing allergy symptoms from changes in orange juice processing involving enzyme technology; discusses how food alterations via new technologies correlate with allergic problems; notes intestinal bacteria, raw carrot, oil and vinegar, and hypothyroidism relevance to food allergenicity.
Source summary and thread relationship - @lowmegatron · 2026-02-12 original
The author explains 5α-reductase-2 deficiency, in which testosterone is made but conversion to DHT is impaired, leading to atypical genital development and sparse facial and body hair. He says it is usually genetic but can also be caused by hypothyroidism. He cites a report of children with severe untreated hypothyroidism whose urine steroid patterns mimicked the deficiency and reversed completely on thyroid replacement. The quoted conclusion urges excluding hypothyroidism in DSD workups.
Source summary and thread relationship - @lowmegatron · 2026-02-13 original
Ray Peat quote on T3's cardiac protection through glucose oxidation support; includes case study of adolescent with hypothyroidism-induced heart failure who improved on combined T3/T4 therapy; describes reversal of cardiomyopathy structure and function.
Source summary and thread relationship - @lowmegatron · 2026-02-13 original
Ray Peat explanation of functional hypothyroidism in diabetes due to impaired T4-to-T3 conversion from glucose deprivation; presents evidence that low T3 and high reverse T3 characterize type 2 diabetes; cites animal model studies showing T3 treatment improves insulin sensitivity and glycemic control.
Source summary and thread relationship - @lowmegatron · 2026-02-13 original
Ray Peat quote on T3 administration to brain-dead heart donors improving graft viability and function; includes embedded case discussion of cardiac oxygen consumption reduction in hypothyroidism and improved contractility with thyroid hormone replacement.
Source summary and thread relationship - @lowmegatron · 2026-02-14 original
Depression is strongly associated with hypothyroidism; quoted text describes recognized relationship between thyroid disorders and mood disturbance.
Source summary and thread relationship - @lowmegatron · 2026-02-14 original
Near-infrared light therapy shows improvements in Hashimoto's disease across multiple markers including TSH, antibodies, weight, and medication requirements in human studies.
Source summary and thread relationship - @lowmegatron · 2026-02-14 own thread
lowmegatron posts only a link, which his other posts identify as his Substack article. It follows his post about human studies of near-infrared light for Hashimoto's. The post's own text states nothing else.
Source summary and thread relationship - @lowmegatron · 2026-02-15 original
T3, aspirin, and pregnenolone or progesterone inhibit aromatase and enhance testosterone effectiveness; mechanism involves reducing estrogen excess from stress-induced aromatase elevation.
Source summary and thread relationship - @lowmegatron · 2026-02-15 original
High-dose thiamine (600 mg) reduces fatigue in Hashimoto's hypothyroidism patients; mechanism involves glucose metabolism improvement; case series shows fatigue regression within hours to days.
Source summary and thread relationship - @lowmegatron · 2026-02-15 original
Hypothyroid-related conditions including dry skin, hives, Raynaud's, depression, and arthritis worsen in winter; thyroid generates most body heat and winter factors including cold and light deficiency exacerbate symptoms.
Source summary and thread relationship - @lowmegatron · 2026-02-15 original
Critique of current medical practice focusing exclusively on blood tests for hypothyroidism diagnosis, contrasting with historical symptom-based and temperature-based approaches; argues tissue-level thyroid hormone activity cannot be detected by blood tests alone.
Source summary and thread relationship - @lowmegatron · 2026-02-16 original
Historical critique of PBI (protein-bound iodine) test as thyroid standard, arguing its foundation in false premises parallels current TSH/levothyroxine paradigm; embedded quote discusses T3 test reliability limitations and immunoassay inaccuracy.
Source summary and thread relationship - @lowmegatron · 2026-02-16 original
Ray Peat quote on stress-induced suppression of T3 activity via cortisol and adrenaline; explanation that common thyroid labs may appear normal while T3 is actually low due to cortisol effects on free fatty acids; cites two studies on cortisol infusion effects and glucocorticoid inhibition of T4-to-T3 conversion; embedded quote on free fatty acids' role in blocking T4 uptake.
Source summary and thread relationship - @lowmegatron · 2026-02-16 original
Case report of individual with severely depressed basal metabolic rate (-37%) and multiple hypothyroid symptoms (constipation, high cholesterol, cold intolerance, stiffness, soreness) showing visible physical changes at 3 and 18 months after starting natural desiccated thyroid (NDT).
Source summary and thread relationship - @lowmegatron · 2026-02-16 original
Ray Peat passage discussing polyunsaturated fat toxicity in high-fat diet using Eskimo diet example; explains mechanism of thyroid hormone promotion in traditional Eskimo diet through consumption of organ meats (thyroid gland, brain) containing cholesterol and steroid hormone precursors; contrasts with negative effects of polyunsaturated fat on thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-02-17 original
Single-word post 'Iodine' followed by embedded quote reporting personal adverse experience with high-dose iodine (5mg daily) causing hyperthyroidism with elevated T4.
Source summary and thread relationship - @lowmegatron · 2026-02-17 original
Thyroid hormone T3 accelerates alcohol clearance and corrects alcohol intolerance; low thyroid function associated with hangover severity and hypoglycemia risk from alcohol consumption.
Source summary and thread relationship - @lowmegatron · 2026-02-17 own thread gap
lowmegatron points readers to his video course covering all aspects of hypothyroidism and low thyroid hormone levels, with a link.
Source summary and thread relationship - @lowmegatron · 2026-02-17 original
Hypothyroidism is a cause of burning mouth syndrome; thyroid hormone treatment (Levothyroxine) reverses burning mouth symptoms, with 64% of hypothyroid patients showing pain reduction.
Source summary and thread relationship - @lowmegatron · 2026-02-18 original
Author claims indoor natural light improves mood and sleep, reducing insomnia, depression, and elevated cortisol. States people with more indoor natural light have lower morning melatonin, higher nighttime melatonin, and lower nighttime cortisol. Notes lack of light exposure correlates with depression and poor sleep quality. Recommends windows or bright incandescent lights as alternatives. Includes embedded quote from Ray Peat on light effects on mitochondrial enzymes and seasonal health problems.
Source summary and thread relationship - @lowmegatron · 2026-02-18 original
Author claims hypothyroidism causes nasal mucosa swelling leading to nasal congestion through a process similar to puffy face and constipation caused by low thyroid. States this association is confirmed by experimental hypothyroidism in rats. Describes histological and pathological changes in nasal tissue from hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-19 own thread
Under his nasal congestion post, lowmegatron promotes his video course on all aspects of hypothyroidism and low thyroid hormone levels, with a link.
Source summary and thread relationship - @lowmegatron · 2026-02-19 original
Author reports that over-the-counter thyroid supplements (glandular and herbal) contain variable and undisclosed amounts of thyroid hormones T3 and T4. Cites study finding nine of ten products contained detectable T3 (ranging 1.3–25 mcg), five contained T4 (0.5–22 mcg). Herbal products contained 100–240 mcg iodine and 150–1000 mg tyrosine per capsule, with specific examples showing recommended doses delivering substantial hormone amounts.
Source summary and thread relationship - @lowmegatron · 2026-02-19 original
Author quotes Ray Peat on varying individual reactions to alcohol depending on thyroid activity, noting antioxidant vs. pro-oxidative effects and interaction with polyunsaturated fat consumption. Contextualizes linoleic acid as abundant polyunsaturated fat in soybean and seed oils. Includes embedded quote on thyroid hormone correcting alcohol intolerance and preventing hypoglycemia.
Source summary and thread relationship - @lowmegatron · 2026-02-19 original
Author claims hypothyroid men have lower libido, larger prostates, lower testosterone, and lower sexual satisfaction. Cites study finding prevalence of hypogonadism 13.8% in hypothyroid patients vs. 6.5% in normal thyroid function group. Includes embedded quote on how hypothyroidism causes elevated prolactin and dropped free testosterone, correctable by restoring thyroid levels.
Source summary and thread relationship - @lowmegatron · 2026-02-20 original
Sharing embedded post from lowmegatron describing misdiagnosis of CFS/ME as hypothyroidism, advocating FT3 testing and natural desiccated thyroid (NDT) treatment.
Source summary and thread relationship - @lowmegatron · 2026-02-20 original
Study findings that Hashimoto's hypothyroidism patients have significantly higher dry eye prevalence and severity, correlated with lower free T4 levels.
Source summary and thread relationship - @lowmegatron · 2026-02-20 original
Hypothesis that hypothyroid glaucoma results from fluid swelling and accumulation in the eye, with supporting quotes from Ray Peat and systematic review evidence of increased glaucoma risk in hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-02-20 original
Animal study showing coconut oil increases thyroid hormone levels and lowers TSH in rats on anti-thyroid medications; Ray Peat quote on coconut oil's pro-thyroid effect and glycogen storage; dietary swap guidance for weight management.
Source summary and thread relationship - @lowmegatron · 2026-02-20 original
Explanation that liver carbohydrate availability regulates T4-to-T3 conversion and metabolic rate; glucose is essential for T3 production; Ray Peat quote on hypothyroid temperature and pulse response to carbohydrate feeding; study citation on dietary carbohydrate and T3 production; embedded quote on thyroid dysfunction during ketogenic diet in epilepsy patients.
Source summary and thread relationship - @lowmegatron · 2026-02-23 original
Explanation that hypothyroidism impairs β-carotene to vitamin A conversion, allowing carotenoid accumulation and yellow-orange skin (carotenemia); thyroid hormone supports normal conversion and prevents buildup.
Source summary and thread relationship - @lowmegatron · 2026-02-23 original
Historical context that night blindness was recognized as hypothyroidism symptom; mechanism involves thyroid hormone supporting beta-carotene to vitamin A conversion needed for retinene/retinal eye pigment; note that beta-carotene alone is poor vitamin A source; embedded quote from lowmegatron on thyroid hormone effects on color vision and cone function.
Source summary and thread relationship - @lowmegatron · 2026-02-23 original
Description of supraclavicular fat pad (fatty tissue above collarbone) as visible/palpable sign associated with Cushing's syndrome but also appearing in some hypothyroidism cases; congenital hypothyroidism study showing fat pad among multiple myxedema signs; embedded Ray Peat quote linking 'Cushingoid' fat distribution, hair loss, and hormone imbalance secondary to hypothyroidism with heart disease risk.
Source summary and thread relationship - @lowmegatron · 2026-02-23 own thread
Under his carotenemia post, lowmegatron promotes his video course on all aspects of hypothyroidism and low thyroid hormone levels, with a link.
Source summary and thread relationship - @lowmegatron · 2026-02-24 original
Ray Peat states T3 (active thyroid hormone) reverses learned helplessness in rats after it is induced. Embedded post discusses historical context of learned helplessness research, CIA MKUltra connections, and anecdotal report of T3 treatment resolving depression and hopelessness linked to low T3 from thyroid crash.
Source summary and thread relationship - @lowmegatron · 2026-02-24 original
Hoarseness in hypothyroidism results partly from mucopolysaccharide buildup and vocal cord swelling, similar to facial swelling. Embedded post notes recovery from hypothyroidism via NDT or T3 improves singing ability through reduced nasal inflammation.
Source summary and thread relationship - @lowmegatron · 2026-02-24 original
Hypothyroidism causes tongue swelling (macroglossia). Embedded post explains hypothyroidism causes nasal mucosa swelling leading to nasal congestion through similar mechanism as facial puffiness and constipation. Thyroid hormone receptors present in nasal mucosa; hypothyroidism triggers edema, inflammation, and vascular proliferation.
Source summary and thread relationship - @lowmegatron · 2026-02-24 original
Ray Peat explains levothyroxine monotherapy can worsen thyroid problems by suppressing residual thyroid T3 production. Symptoms result from low T3 availability, not TSH level. Desiccated thyroid products (Armour, Thyrolar, Euthroid, Proloid) containing both T4 and T3 at physiologic ratio more effective. Embedded post details levothyroxine alone fails to correct slow metabolism and weight gain; T3 drives metabolism. High-dose levothyroxine can reduce T3 conversion and suppress gland T3 release despite lowering TSH.
Source summary and thread relationship - @lowmegatron · 2026-02-24 original
Ataxia (lack of muscle coordination, instability, clumsy movement) can be caused by hypothyroidism and is reversible with early thyroid hormone replacement. Case report of 40-year-old male with gait ataxia from primary hypothyroidism with anti-TPO antibody positivity, fully improved within 8 weeks of thyroxine.
Source summary and thread relationship - @lowmegatron · 2026-02-25 original
Broda Barnes reports all diabetic patients treated showed subnormal basal temperature and hypothyroid symptoms; thyroid therapy prevented atherosclerosis progression and diabetic complications. Hypothyroidism in type 2 diabetes significantly increases microvascular and macrovascular complication risk. Embedded post explains TSH causes insulin resistance; higher TSH within normal range associated with insulin resistance through inflammatory pathways and impaired insulin signaling.
Source summary and thread relationship - @lowmegatron · 2026-02-25 original
Low TSH should be interpreted as stress marker rather than indicator of good thyroid status. Stress suppresses TSH while also lowering active thyroid hormone T3, causing hypothyroid symptoms. Stress reduces T4-to-T3 conversion (similar to euthyroid sick syndrome) to conserve energy. Embedded post defines stress as nonspecific body response to any demand.
Source summary and thread relationship - @lowmegatron · 2026-02-26 original
Hypothyroidism weakens respiratory muscle strength, making breathing harder and more tiring; treatment with thyroid hormones improves respiratory markers including vital capacity, forced expiratory volume, and inspiratory and expiratory muscle pressure; improvements correlate with TSH and T3 levels.
Source summary and thread relationship - @lowmegatron · 2026-02-26 original
TSH can appear normal or low despite real hypothyroidism when affected by factors beyond thyroid hormone feedback: aging, infection, trauma, prolonged cortisol excess, somatostatin, dopamine, adrenaline, amphetamine, caffeine, and fever.
Source summary and thread relationship - @lowmegatron · 2026-02-26 original
Selenium supplementation (200 mcg sodium selenite) helps lower Hashimoto's antibodies; 25% of women achieved normal antibody levels compared to 4× placebo; improves inflammatory activity in autoimmune thyroiditis; recommends checking baseline selenium intake before supplementing due to risk of excess.
Source summary and thread relationship - @lowmegatron · 2026-02-27 original
Quote from Broda O. Barnes MD critiquing unreliability of laboratory thyroid tests to detect thyroid hormone deficiency despite clinical manifestations in patients; notes medicine has recognized the deficiency but failed to use this knowledge due to test limitations.
Source summary and thread relationship - @lowmegatron · 2026-02-27 original
T3 thyroid hormone improves ADHD in children with resistance to thyroid hormone (RTH), a condition affecting up to 3/4 of ADHD children; children with higher TSH (lower thyroid hormones) score higher on ADHD testing; in double-blind crossover trial, L-T3 benefited 5/8 RTH+ADHD children but not most ADHD-only children.
Source summary and thread relationship - @lowmegatron · 2026-02-27 original
T3 and T4 thyroid hormones drop during illness including sepsis; though commonly framed as adaptive, supplemental T3 and T4 increased survival in septic rats with perforated intestines.
Source summary and thread relationship - @lowmegatron · 2026-02-28 original
Hypothyroidism reduces stages 3 and 4 deep sleep, leading to subjective poor sleep quality; treatment with desiccated thyroid may increase deep sleep phases.
Source summary and thread relationship - @lowmegatron · 2026-02-28 original
Hibernating bears exhibit hypothyroid-like physiology with T4 reduced to <44% and T3 <36% of active state levels, including decreased metabolic rate, low heart rate, low temperature, fatigue and constipation; mirrors hypothyroid human symptoms.
Source summary and thread relationship - @lowmegatron · 2026-02-28 original
Ray Peat's account of allergist observations that intravenous magnesium provided temporary symptom relief but was rapidly excreted; combined with thyroid hormone, magnesium was retained and symptom relief persisted; thyroid hormone required for magnesium absorption and retention via ATP binding.
Source summary and thread relationship - @lowmegatron · 2026-02-28 original
Author presents research linking higher blood histamine and lower thiamine (B1) to childhood stuttering, proposes B1 deficiency increases histamine, notes hypothyroidism association with stuttering via impaired glucose oxidation.
Source summary and thread relationship - @lowmegatron · 2026-03-01 original
Author documents Dr. George Murray's 1891 use of animal thyroid extract for hypothyroidism/myxedema treatment, contrasts early results with development of Natural Desiccated Thyroid (NDT) and later T4-only therapy (levothyroxine), arguing NDT's T3:T4 ratio was more effective than synthetic T4 alone.
Source summary and thread relationship - @lowmegatron · 2026-03-01 original
Author shares Ray Peat's observation on Three Mile Island infants born without thyroid glands who remained asymptomatic while breastfed due to thyroid hormone in breast milk, contrasts with cow's milk as less rich in thyroid and progesterone but contributing to metabolic stimulation.
Source summary and thread relationship - @lowmegatron · 2026-03-01 original
Author presents Dr. Denis Wilson's experience using Broda Barnes's approach of measuring body temperature to guide thyroid hormone treatment with desiccated thyroid in patients with normal lab tests, finding ~60% clinical improvement where conventional medical training predicted none.
Source summary and thread relationship - @lowmegatron · 2026-03-02 original
Author shares Ray Peat's critique that physicians view euphoria from thyroid hormone as dangerous and advise discontinuation despite potential therapeutic benefit, characterizing medical bias against positive mood states.
Source summary and thread relationship - @lowmegatron · 2026-03-02 original
Author presents Ray Peat's claim that thyroid is the only safe cholesterol-lowering agent, followed by medical literature on thyroid dysfunction's lipid effects; notes hypothyroidism impairs lipid profile and thyroid therapy improves it.
Source summary and thread relationship - @lowmegatron · 2026-03-02 original
Hypothyroidism causes myxedema-type water retention as a cause of many symptoms.
Source summary and thread relationship - @lowmegatron · 2026-03-02 original
Ray Peat quoted recommending McGavack's The Thyroid as traditional medical knowledge to dispel current dogmas about thyroid physiology.
Source summary and thread relationship - @lowmegatron · 2026-03-02 own thread gap
lowmegatron points readers to his video course covering all aspects of hypothyroidism and low thyroid hormone, with a link.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Historical record from 1500 BC and earlier of hypothyroidism and goiter, including references from Atharva Veda and Sushruta Samhita describing goiter with symptoms including respiratory difficulty, body weakness, anorexia, and voice loss; possible early description of multiple goiter types.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Zinc protects against stress-induced decrements in thyroid hormones and testosterone and improves weight loss, inflammation, and insulin sensitivity in obese people in caloric deficit. Two studies quoted on zinc supplementation effects. Embedded quoted post details high-dose zinc effects on T3, reverse T3, and thyroid hormone conversion in zinc-deficient people.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
TSH within normal range shows dose-response relationship with hypertension risk: 9% increased risk per 1.0 mIU/L increase. Many people have hypertension from suboptimal thyroid hormone; mechanism involves TRH increasing blood pressure when thyroid hormone is low. Embedded quoted post cites case report and historical study showing thyroid hormone supplementation lowers elevated blood pressure in some hypothyroid patients; effect varies by hypertension type.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Author reports a dog appearing hypothyroid despite normal TSH test results from veterinarian.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Author explains a mechanistic pathway whereby hypothyroidism increases cortisol via reduced 11β-HSD2 enzyme activity, proposing this accelerates aging; contrasts with coffee's opposing effect; cites multiple studies on cortisol and aging, T3 regulation of cortisol metabolism, and hypothyroid cortisol kinetics.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Author describes anti-thyroid effects of cortisol on TSH signaling, T4-to-T3 conversion, and thyroid hormone tissue uptake; notes these effects are invisible to blood tests and can cause misdiagnosis.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Author presents personal anecdotes from two users (husband and wife) reporting dramatic health improvements from switching to T3 thyroid hormone including water weight loss, temperature normalization, resolution of psoriasis, reproductive function recovery, PMDD reversal, mood stabilization, and histamine reduction; pairs with experimental animal data showing hypothyroidism increases mast cells and histamine.
Source summary and thread relationship - @lowmegatron · 2026-03-03 original
Author describes PFAS (per- and polyfluoroalkyl substances) as endocrine disruptors interfering with thyroid hormone production, transport, and signaling; notes association with faster weight regain in women; identifies common sources of PFAS exposure.
Source summary and thread relationship - @lowmegatron · 2026-03-04 original
Author notes anecdotal reports of reduced allergies following thyroid hormone correction; cites embedded user experience with Armour thyroid (T4/T3 combination) taken over three years.
Source summary and thread relationship - @lowmegatron · 2026-03-04 original
Author provides historical narrative of iodine's identification (1812) and thyroid use (1816); embeds extensive quoted content on iodine's adverse effects, importance of caution, mechanisms of iodine-induced hypothyroidism, and the distinction between iodine deficiency and excess.
Source summary and thread relationship - @lowmegatron · 2026-03-04 original
Author quotes Ray Peat on magnesium-calcium-thyroid hormone interactions; emphasizes need for adequate dietary magnesium when initiating thyroid hormone to avoid cardiac effects from magnesium depletion and muscular competition.
Source summary and thread relationship - @lowmegatron · 2026-03-04 original
The author claims hypothyroidism can cause graying hair, sometimes reversed with treatment. He quotes a case report in which a patient treated with IV then oral L-thyroxine had complete repigmentation of gray scalp hairs that persisted through 2 years of follow-up.
Source summary and thread relationship - @lowmegatron · 2026-03-04 original
Broda Barnes reported that patients with winter itch responded dramatically to thyroid therapy, often with undiagnosed hypothyroidism; circulation reduction in cold weather exacerbates the condition.
Source summary and thread relationship - @lowmegatron · 2026-03-06 own thread
lowmegatron promotes his video course on hypothyroidism and what to do about it, with a link.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Case report of treatment-resistant depression resolved with T3 thyroid hormone after multiple failed SSRI, SNRI, and antipsychotic trials. Active thyroid hormone T3 is essential for brain metabolism and correction of hypothyroidism may address depression.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
People with thyroid hormone resistance (RTH) have elevated rates of multiple conditions including goiter, ADHD, speech impediment, infections and hearing loss, typically linked to THRB gene mutations. Thyroid hormone resistance means tissue unresponsiveness despite high hormone levels due to defective thyroid hormone receptor beta.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Broda Barnes observed that hypothyroid patients experience recurrent infections and demonstrated in animal experiments that hypothyroidism directly weakens immunity. Resistance to thyroid hormone patients have 50% more ear, nose, throat infections than relatives without the condition; insufficient T3 is correctable.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Ray Peat quotation describes high metabolic rate in young people converting cholesterol into pregnenolone, DHEA, and progesterone to maintain low blood cholesterol; age-related decline in metabolic rate increases cholesterol as a regulatory process supporting synthesis of protective neurosteroids. Embedded post cites clinical evidence that thyroid is the only thing safely lowering cholesterol and that thyroid dysfunction impacts lipid profiles.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Broda Barnes, MD reported that women with menstrual disorders treated with NDT thyroid therapy experienced high rates of symptom relief. Basal metabolic rate or basal temperature testing better identifies thyroid deficiency than blood tests. NDT containing T3 is more effective than levothyroxine monotherapy, though synthetic T4 plus T3 combination works similarly.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Hypothyroid symptoms are primarily caused by low T3 activity in cells and tissues, not just low production by the thyroid gland. Current diagnostic testing with TSH and T4 cannot assess cellular T3 activity, so many people with low T3 activity remain symptomatic despite normal blood tests. Low T3 activity has multiple causes beyond thyroid gland failure.
Source summary and thread relationship - @lowmegatron · 2026-03-06 original
Case report of a patient with internal myxedema and hypothyroidism treated with NDT. Before-and-after photos show gastrointestinal swelling reduction, carotenemia resolution, and multiple symptom improvements including normalized basal metabolic rate, cholesterol reduction, reduced cardiac involvement, and cessation of menorrhagia after 3 months of NDT therapy at 2-4 grains daily.
Source summary and thread relationship - @lowmegatron · 2026-03-07 original
Repost sharing user experiences of T3 thyroid hormone therapy. Two people report multiple improvements including weight loss, temperature normalization, resolution of psoriasis, return of ovulation, reversal of PMDD and emotional symptoms, reversal of Raynaud's, cholesterol normalization, discontinuation of ADHD medication, and resolution of histamine-related symptoms. Study cited showing experimental hypothyroidism increases mast cells and histamine in rats.
Source summary and thread relationship - @lowmegatron · 2026-03-07 original
Blood tests cannot detect thyroid hormone activity in tissues and cells, only blood levels. Many people remain symptomatically hypothyroid despite normal blood tests because thyroid hormone activity in tissues is low. Basal temperature, influenced primarily by T3, is often a better indicator of thyroid hormone activity than blood tests.
Source summary and thread relationship - @lowmegatron · 2026-03-09 original
Author lists micronutrients, macronutrients, and lifestyle factors (sleep, stress) claimed to optimize thyroid hormones and prevent T3 suppression. Quotes lowmegatron on cortisol's anti-thyroid mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-03-09 original
Author explains low thyroid hormone reduces energy to non-essential functions including testosterone and fertility in men; compares T4 (levothyroxine) versus T3 (liothyronine) therapy; notes downstream conversion and uptake issues. Quotes three studies on hypothyroidism, testosterone, sexual function, and spermatogenesis.
Source summary and thread relationship - @lowmegatron · 2026-03-10 original
Author explains obesity appearance in hypothyroidism as mucopolysaccharide (glycosaminoglycan) accumulation causing water retention. Attributes Ray Peat quote on hormonal imbalances in hypothyroidism. Describes mechanism: low thyroid hormone → fibroblasts produce more mucopolysaccharides → water trapping → myxedema symptoms. Embedded post by lowmegatron on historical thyroid extract treatment and NDT efficacy.
Source summary and thread relationship - @lowmegatron · 2026-03-10 original
Author claims depression, constipation, headache, muscle cramps, rheumatoid symptoms, cold, and fatigue are massively reduced with properly dosed NDT compared to levothyroxine dosed according to TSH.
Source summary and thread relationship - @lowmegatron · 2026-03-11 original
Near-infrared light treatment enabled approximately 47% of Hashimoto's patients to discontinue thyroid medication in trials, with improvements in TSH, weight, antibodies, and thyroid hormone levels.
Source summary and thread relationship - @lowmegatron · 2026-03-11 own thread
lowmegatron posts only a link, identified elsewhere in his posts as his Substack article. The parent post claims about half of Hashimoto's patients stopped medication in near-infrared light trials and mentions device discussion in the article. This post's own text is just the link.
Source summary and thread relationship - @lowmegatron · 2026-03-11 original
Up to 50% of total energy expenditure is dedicated to maintaining core body temperature in humans, with thyroid hormone dependence. Body temperature is proposed as a sensitive indicator of thyroid hormone activity that may reveal issues undetected by blood tests.
Source summary and thread relationship - @lowmegatron · 2026-03-11 original
Elevated TSH in the upper half of normal range is associated with metabolic syndrome, insulin resistance, and type 2 diabetes risk in humans and animal models. Subclinical hypothyroidism shows causally supported increased diabetes risk.
Source summary and thread relationship - @lowmegatron · 2026-03-11 original
Xanthomas are lipid-filled lesions caused by abnormal lipid handling; hypothyroidism reduces thyroid hormone and slows lipid clearance, contributing to xanthoma formation and atherosclerosis. Case shows regression of xanthomas after 3 months of desiccated thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2026-03-12 original
Hypothyroidism causes nasal passage swelling and congestion; symptoms resolve with optimal thyroid dosing. NDT appears more effective than T4/T3 combination for this symptom.
Source summary and thread relationship - @lowmegatron · 2026-03-12 original
The author lists improvements reportedly noted after switching from levothyroxine to NDT USP, including that hair loss stopped, brain fog lifted, energy rose, eczema cleared and constipation went away. He quotes patient statements such as feeling like a normal person again on NDT 120mg.
Source summary and thread relationship - @lowmegatron · 2026-03-12 original
T3 thyroid hormone reduces mast cell histamine production and inflammation; hypothyroidism increases mast cell numbers and histamine content in tissues. T3 may help reverse learned helplessness through anti-inflammatory and mast cell stabilizing mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-03-12 original
Bacterial endotoxin reduces REM sleep and causes depression-like symptoms including fatigue, reduced appetite and cognitive impairment. Embedded post summarizes Ray Peat commentary on endotoxin's role in aging, cancer, inflammation, and dietary/supplement interventions.
Source summary and thread relationship - @lowmegatron · 2026-03-12 original
Testosterone supplementation reduces thyroid antibodies (TPOAb and TgAb) in men with low testosterone and Hashimoto's disease. Selenium alone also reduces antibodies but testosterone produces greater reduction.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Ray Peat quoted on TSH and mucopolysaccharide accumulation in hypothyroidism; explanation of how these molecules cause tissue swelling and puffy facial features. Embedded quoted post by lowmegatron describes Dr. George Murray's 1891 use of animal thyroid extract for myxedema, historical development of NDT, and T3:T4 ratio differences between NDT and synthetic levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Study of 155 post-thyroidectomy patients with subclinical hypothyroidism treated with levothyroxine; measured changes in uric acid and insulin resistance (HOMA-IR) over 2 months. Embedded quoted post by lowmegatron on metabolic syndrome risk with upper-normal TSH range and relationship between subclinical hypothyroidism and insulin resistance, including mouse model data.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Broda Barnes and Ray Peat quoted on gout, hypothyroidism, and thyroid therapy; Ray Peat's view of uric acid as antioxidant and anti-inflammatory. Embedded quoted post by lowmegatron on thyroid hormone treatment effects on uric acid and insulin resistance.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Broda Barnes case report of 10-year-old boy with recurrent nightmares resolved with natural desiccated thyroid therapy; only definite physical finding was subnormal basal temperature.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Images showing before-and-after facial changes in hypothyroidism and recovery with NDT USP treatment. Embedded quoted post by lowmegatron on hypothyroidism-induced nasal congestion mechanism and mucosal changes confirmed in animal models.
Source summary and thread relationship - @lowmegatron · 2026-03-13 original
Broda Barnes quoted on clinical experience treating acne with thyroid therapy alone; reported >90% of patients benefited to varying degrees across all age groups, comparable to multi-measure acne treatment regimens.
Source summary and thread relationship - @lowmegatron · 2026-03-14 original
User @whimbreline shares personal experience of nasal congestion resolved after starting regular thyroid and progesterone treatment; notes improved quality of life metrics (tissue use, nasal spray use).
Source summary and thread relationship - @lowmegatron · 2026-03-14 original
Author lists interventions reported to lower thyroid antibodies (TPOAb, TGAb) with effect sizes, including near-infrared light, vitamin D, selenium, vitamin C, testosterone in deficient men, and levothyroxine; notes LDN, gluten removal, and dairy removal help a minority.
Source summary and thread relationship - @lowmegatron · 2026-03-14 own thread
lowmegatron shares a link with the caption 'Breakdown of near infrared therapy for Hashimoto's'. It quotes his Substack article link. The post has media, but its content is not supplied.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Author shares extended Ray Peat quote and embedded lowmegatron post on high-protein diet's thyroid-suppressing effects via amino acids (methionine, cysteine, tryptophan) and cortisol, milk's protective calcium, delayed tissue response to thyroid hormone, and NDT dosing; includes cited studies on protein, cortisol, methionine restriction, and thyroid hormone conversion.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
lowmegatron lists skin and hair manifestations of hypothyroidism (dry skin, myxedema, carotenemia, brittle hair, alopecia, loss of the outer eyebrow third, drooping eyelids) and separately lists features linked to thyroid autoimmunity (pretibial myxedema, hives, eczema, connective tissue disease).
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Author traces historical discovery of thyroid hormone-induced weight loss from 1890s iodothyrin to modern T3 studies, noting iodothyrin as active thyroid gland extract containing T3; embeds lowmegatron post comparing T3 and levothyroxine on weight loss and LDL.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Author quotes Ray Peat on thyroid hormone's role in regulating adrenaline, serotonin, and estrogen; discusses methylene blue as electron-carrier substitute for thyroid hormone in treating depression and dementia; embeds lowmegatron post linking hypothyroidism to dementia risk, especially in patients on thyroid medication.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Author notes thyroid hormone's known role in mental health over decades; quotes Broda Barnes case studies of severe psychiatric symptoms (suicidality, morbid obsessions, hallucinations) resolved by thyroid treatment (NDT USP); includes image excerpt of another case of psychosis with myxedema resolved by thyroid therapy; clarifies NDT treatment differs from levothyroxine dosing for TSH.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Low T3 (active thyroid hormone) is linked to depression. T4 must convert to T3 to be effective. Poor T4-to-T3 conversion can leave brain thyroid activity low even with normal standard labs. TSH above 2.5 mU/L is associated with more depressive symptoms in T4-treated people. Standard tests focusing on TSH and T4 miss tissue-level thyroid activity; T3, reverse T3, and conversion capacity are more relevant.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
Ray Peat quote on T3 concentration in brain: brain maintains 1:1 T3:T4 ratio and cannot use excess T4 effectively; adding T4 can displace active T3 and cause neurological symptoms (strange sensations, tinnitus, memory problems), indicating worse thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-03-16 original
lowmegatron argues that hypothyroid dogs have lower energy expenditure and that levothyroxine raised it. He cites a study in which 18 of 20 obese dogs lost weight, lethargy improved in 14 of 15, and 93% of dogs with skin or coat problems improved or resolved. He states that thyroid hormone accounts for about 50% of BMR and that dogs seem to respond better to levothyroxine than people do.
Source summary and thread relationship - @lowmegatron · 2026-03-17 original
In hypothyroidism, mucopolysaccharides accumulate in skin and soft tissues, holding water and causing tissue thickening and swelling. Results in broad, coarse, puffy face with swollen eyelids, thick lips, and larger-appearing tongue.
Source summary and thread relationship - @lowmegatron · 2026-03-17 original
Vitamin A supplementation at 25,000 IU/day lowers TSH and increases T3. Study shows supplementation effective for correcting mild thyroid abnormalities and reducing subclinical hypothyroidism risk in premenopausal women.
Source summary and thread relationship - @lowmegatron · 2026-03-17 original
Subclinical hypothyroidism causes insulin resistance and doubles type 2 diabetes risk; animal models demonstrate causality; treating hypothyroidism improves insulin sensitivity in humans via improved glucose metabolism and uric acid regulation.
Source summary and thread relationship - @lowmegatron · 2026-03-17 original
Fructose improves fasting blood sugar and HbA1c in type 2 diabetes; moderate amounts incorporated into mixed meals produced improvements without deleterious effects on lipoproteins over 12 months; fructose spares muscle protein during caloric restriction.
Source summary and thread relationship - @lowmegatron · 2026-03-18 original
Historical account of late 19th century thyroid tissue grafting to treat hypothyroidism, where patient's own thyroid reportedly became active and cure ensued in most cases.
Source summary and thread relationship - @lowmegatron · 2026-03-18 original
Hypothyroidism slows gut motility and stomach acid secretion, causing constipation and delayed gastric emptying; this creates conditions for SIBO; speeding digestion via thyroid treatment reduces bacterial overgrowth risk.
Source summary and thread relationship - @lowmegatron · 2026-03-18 original
Low T3 thyroid hormone, high histamine and high serotonin are implicated in learned helplessness behavior; T3 is anti-inflammatory and stabilizes mast cells to reduce histamine and serotonin secretion; same treatments that reduce learned helplessness also reduce inflammatory response and histamine.
Source summary and thread relationship - @lowmegatron · 2026-03-18 original
Broda Barnes recommended minimum effective dosing of natural desiccated thyroid for symptom relief in adults, typically 2 grains, sometimes 3, rarely 4; synthetic T4 with small T3 doses is usually equally effective; basal temperature normalization is secondary to symptom resolution.
Source summary and thread relationship - @lowmegatron · 2026-03-18 own thread
Under his post on slowed gut motility and SIBO, lowmegatron promotes his video course on hypothyroidism and what to do about it, with a link.
Source summary and thread relationship - @lowmegatron · 2026-03-19 original
Magnesium supplementation at 250 mg/day elemental for three months improves insulin resistance, HbA1C, and related metabolic markers in type 2 diabetes. Embedded Ray Peat quote discusses magnesium–thyroid–calcium interactions and risk of heart pain if thyroid is increased without adequate dietary magnesium.
Source summary and thread relationship - @lowmegatron · 2026-03-19 original
Ray Peat clinic findings: thyroid hormone and vitamin A at higher doses improved acne, bladder/kidney infections, periodontitis, sinusitis, colitis, myositis, bursitis, and arthritis. Many patients appeared deficient in both compounds despite supplementation, suggesting possible toxin interference.
Source summary and thread relationship - @lowmegatron · 2026-03-19 original
Selenium deficiency causes thyroid hormone problems and insulin resistance. In type 2 diabetes patients with coronary heart disease, 200 mcg selenium for 8 weeks improved insulin sensitivity and reduced inflammation (decreased insulin, HOMA-IR, hs-CRP; increased QUICKI, TAC). In hypothyroid patients on thyroid hormone, HOMA-IR decreased and insulin sensitivity improved. Author recommends checking intake via Cronometer before supplementing, as excess selenium is harmful.
Source summary and thread relationship - @lowmegatron · 2026-03-19 original
Author cites a pilot study showing Brazil nut supplementation increased thyroid hormone in selenium-deficient hemodialysis patients; explains selenium's role in thyroid hormone conversion and autoimmune thyroid conditions; advises checking selenium intake before supplementing.
Source summary and thread relationship - @lowmegatron · 2026-03-20 original
Shares extended quotation attributed to Broda Barnes describing thyroid hormone's role in alcohol tolerance, liver function and hypoglycemia risk in those with low thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-03-20 original
Author compiles evidence that thyroid hormone regulates saliva quality and that hypothyroidism impairs dental health; cites historical observation, clinical studies on Hashimoto's and xerostomia, and animal studies showing causality via thyroid hormone and thiouracil.
Source summary and thread relationship - @lowmegatron · 2026-03-23 original
Author quotes Ray Peat on Armour thyroid versus levothyroxine, noting that Armour releases T3:T4 in 1:3 ratio and produces higher serum T3:T4 ratios in users compared to levothyroxine users. Adds explanatory note that T3 is active hormone and T4 is precursor requiring conversion.
Source summary and thread relationship - @lowmegatron · 2026-03-24 original
lowmegatron restates the quoted canine findings: after levothyroxine, lethargy improved in 14 of 15 dogs, 18 of 20 obese dogs lost weight, and 93% of dogs with dermatologic disease, including dry coat or alopecia, improved or resolved.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron claims elderly hypothyroid patients did well for decades on NDT/Armour, then declined after a new doctor used a TSH-plus-levothyroxine protocol, with symptoms blamed on other causes because labs 'look perfect'.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron cites Ray Peat saying hypothyroidism involves elevated adrenaline, estrogen and cortisol and low magnesium, poor deep sleep, and that T3 with magnesium is a reliable treatment for insomnia, cramps and anxiety.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron claims experimental hypothyroidism raised cortisol (+60%), adrenaline, noradrenaline and aldosterone (2x), links this to blood pressure, anxiety and blood sugar, says adding T3 to T4 improved anxiety, depression and quality of life, and that hypothyroidism raised mast cells and histamine in rats.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron quotes Ray Peat that 'Cushingoid' fat distribution, sudden balding and other signs of hormone imbalance secondary to hypothyroidism are statistically associated with heart disease.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron claims hypothyroidism diminishes color vision and that blue-yellow and red-green contrast sensitivity improved after thyroxine treatment.
Source summary and thread relationship - @lowmegatron · 2026-03-25 own thread
The post text is only links. Its quoted post by lowmegatron claims thyroid hormone determines alcohol tolerance and that T3 speeds alcohol clearance, quoting Broda Barnes that people with low thyroid function tolerate alcohol poorly, with sluggish livers and possible hypoglycemia.
Source summary and thread relationship - @lowmegatron · 2026-03-25 original
TSH in upper normal range increases hypertension risk by 30%; thyroid replacement therapy lowers blood pressure; elevated TSH impairs endothelial vasodilation; historical data showing NDT outcomes: 20% high→normal, 55% reduced, 25% no improvement; case example from Broda Barnes.
Source summary and thread relationship - @lowmegatron · 2026-03-25 original
Subclinical hypothyroidism (elevated TSH, normal T4) associated with higher insulin, inflammation, and insulin resistance; TSH directly inhibits insulin signaling in cell experiments via TNF-α and NF-κB pathways.
Source summary and thread relationship - @lowmegatron · 2026-03-25 original
Chronic stress suppresses TSH and impairs T4-to-T3 conversion via CRH, ACTH, and cortisol; stress-induced alterations can cause low active T3 despite normal T4 and TSH labs; T3 effects on tissues matter most.
Source summary and thread relationship - @lowmegatron · 2026-03-25 original
Citation of stress-induced suppression of TSH secretion and T4-to-T3 conversion with mediators including glucocorticoids, somatostatin, and cytokines; appears as self-reply continuation to preceding stress/thyroid post.
Source summary and thread relationship - @lowmegatron · 2026-03-25 original
Ray Peat and Broda Barnes quotes on thyroid therapy and heart disease prevention; Barnes' method using basal temperature and symptoms with natural desiccated thyroid reduced expected heart disease by 94% compared to Framingham Study predictions; warning about caution post-heart attack; embedded case of 16-year-old with hypothyroidism-induced cardiomyopathy reversed on T3+T4 combination.
Source summary and thread relationship - @lowmegatron · 2026-03-26 original
Ray Peat's critique of thyroid testing history: protein-bound iodine test (1940s) was later proven invalid; TSH and T4 ranges remain inappropriately broad, maintaining doctrine that only 5% need thyroid despite abandoning the invalid test that established this threshold.
Source summary and thread relationship - @lowmegatron · 2026-03-26 original
Broda Barnes case report of severe migraines with normal thyroid labs but low basal temperature (44 bpm resting pulse) resolved by NDT dosing to correct temperature and symptoms; emphasizes symptom-based dosing differs from TSH-normalized levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-03-26 original
Analysis of suicide mortality in Hashimoto's patients (43% higher) attributed to inadequate brain thyroid hormone replacement with levothyroxine; comparison of NDT vs. levothyroxine showing symptom improvements with NDT dosed to symptoms/basal temperature rather than TSH.
Source summary and thread relationship - @lowmegatron · 2026-03-26 original
Ray Peat and peer-reviewed evidence on role of thyroid hormone, magnesium, and vitamin E in muscle cramping via ATP preservation and retention. Magnesium supplementation (4.5 mg Mg Pidolate 3×/day) effective for menstrual cramps across 6 cycles with progressive symptom reduction.
Source summary and thread relationship - @lowmegatron · 2026-03-27 original
Ray Peat warning on anti-thyroid effects of excess vitamin A; historical case reports of vitamin A treatment for hyperthyroidism with detailed metabolic changes and supporting literature quotes.
Source summary and thread relationship - @lowmegatron · 2026-03-27 original
Subclinical hypothyroidism (elevated TSH, normal-range thyroid hormones) causes excessive daytime sleepiness; two case reports of teenagers/young adults treated with levothyroxine showing resolution of sleep abnormalities.
Source summary and thread relationship - @lowmegatron · 2026-03-27 original
Hypothyroidism decreases hippocampal neurogenesis, impairing brain cell production and cognitive function; study shows adult-onset hypothyroidism reduces neurogenesis and thyroid hormone replacement restores it.
Source summary and thread relationship - @lowmegatron · 2026-03-29 original
Quoted claim that T3 thyroid hormone activates protein synthesis in skeletal muscle through transcription and translation initiation without requiring circulating insulin or growth hormone.
Source summary and thread relationship - @lowmegatron · 2026-03-30 original
Carbon dioxide produced by mitochondria may trigger mitochondrial biogenesis. CO₂ absorbed through skin activates PGC-1α pathways similar to exercise and caloric restriction. T3 thyroid hormone increases mitochondrial respiration and CO₂ production, regulating mitochondrial biogenesis.
Source summary and thread relationship - @lowmegatron · 2026-03-30 original
Patient testimonial of symptom improvement on natural desiccated thyroid (NDT) versus levothyroxine for hypothyroidism: resolution of depression, suicidality, joint pain, bloating, digestive issues, dysmenorrhea, and restoration of functional capacity and relationships.
Source summary and thread relationship - @lowmegatron · 2026-03-30 original
Blood tests cannot detect thyroid hormone activity in tissues; T3 is active outside blood; low T3 tissue activity causes hypothyroid symptoms despite normal blood tests; basal temperature may better indicate thyroid hormone activity than blood tests.
Source summary and thread relationship - @lowmegatron · 2026-03-30 original
High-normal TSH is associated with metabolic syndrome and hypothyroidism pathophysiology; standard TSH and T4 reference ranges are inappropriately broad compared to other biomarkers; long Ray Peat quote critiques diagnostic thresholds.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
SIBO is a symptom of untreated hypothyroidism; low active thyroid hormone causes tissue swelling, constipation, stomach acid reduction, and bacterial overgrowth; thyroid correction plus antibiotics may be required; embedded quote details patient's multiyear SIBO misdiagnosis and T3 response.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
Pre-1940 diets contained natural thyroid gland (≈30 mg daily equivalent) from cooking whole animals; modern diet lacks this thyroid source and contains pro-estrogen, antithyroid seed oils, contributing to hypothyroidism, high estrogen, and parasympathetic overactivity.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
Historical note on early thyroid gland theories: lubricant secretion for speech and aesthetic filling of neck in women.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
Hypothyroid individuals produce 40x normal adrenaline as compensation; T3 supplementation initially causes stress-like adrenaline reaction during adaptation; T3's primary function is relaxing; sugary and salty foods help manage adrenaline during adjustment; thyroid hormone suppresses noradrenaline and adrenaline production.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
Thyroidectomy reduces metabolic rate 45% within weeks; effect corrected by thyroid hormone replacement; thyroid hormone's fundamental function is regulating energy metabolism rate; embedded quote details hypothyroid dogs' weight loss and energy gains on levothyroxine with improved coat health.
Source summary and thread relationship - @lowmegatron · 2026-03-31 original
Broda Barnes quoted on hypothyroidism causing sluggish liver, elevated carotene and yellowish skin, and elevated cholesterol. Thyroid administration reverses these findings. Embedded post discusses carotenemia pathology in hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-04-01 original
Light therapy improves anxiety, depression, fatigue, pain, and sleep problems in Hashimoto's hypothyroidism patients within 3 weeks, despite levothyroxine monotherapy at TSH-lowering doses.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron describes a study in which patients with Hashimoto's disease were randomized into two groups of 33. Both were "treated" with a laser device, but in the sham group only the display was on and the laser was not.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron gives study details: two sessions per week for 3 weeks, and three participants lost from each group. The remaining 60 had before-and-after questionnaires analyzed.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports that pain at rest, during activity and at night decreased significantly in the treatment group, with smaller decreases in the sham group. He says overall fatigue fell from 7.7 to 2.9 with treatment and from 7.3 to 5.9 with sham.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron says fatigue, sleep, depression and anxiety were recorded on multiple questionnaire scales. He claims there were "huge improvements" in the treated group compared with sham, and introduces the results that follow.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports results on the FIS fatigue scale, where lower is better. The active group's mean fell from 69.8 to 30.0 (39.8 points), against a 5-point drop in the sham group.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports FSS physical fatigue scores, where lower is better. The active group fell from 42.5 to 29.4 (13.1 points) and the sham group from 40.4 to 37.6 (2.9 points).
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports PSQI sleep scores, where lower is better. The active group fell from 6.9 to 4.7 (2.2 points) and the sham group from 6.4 to 6.0 (0.4 points).
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports ESS daytime sleepiness scores, where higher means sleepier. The active group fell from 7.5 to 5.1 and the sham group from 8.3 to 7.9.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports BDI depression scores, where lower is better. The active group fell from 16.7 to 9.4 (he states 7.4 points, though the numbers shown differ by 7.3), which he calls significant. The sham group fell from 15.1 to 14.2 (0.9 points).
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron reports BAI anxiety scores, where lower is better. The active group fell from 16.9 to 10.4 (6.5 points) and the sham group from 14.5 to 13.7 (0.9 points).
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron says past studies show this treatment can reverse the autoimmune and inflammatory processes behind Hashimoto's, and that because these processes are not confined to the thyroid they may explain the symptom relief. The quoted earlier post claims light therapy in Hashimoto's cut T4 needs by 58% and TPOAb by 49%, and cites PMID 22718472.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron says the effect of thyroid hormones on these parameters is clearer than the effect of other factors. He claims low tissue levels of active T3 cause all of these symptoms, and that tissue T3 cannot be tested, so single thyroid blood tests reveal nothing about it.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron states that all the patients were taking levothyroxine (T4). He argues that levothyroxine-only therapy is unlikely to fully restore tissue T3, which he offers as the reason hypothyroid symptoms often persist in people on levothyroxine alone.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron claims that after autoimmunity is reversed (by the light treatment discussed in the thread), the thyroid can make more hormone, including more T3. He says prior human studies found T3 rose by up to 57%, and he thinks this is likely the biggest factor in symptom improvement.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron claims the T3 increase from the treatment has the same effect as switching from levothyroxine dosed to TSH to NDT dosed to symptoms and basal temperature. He says the benefit comes from greater T3 availability in tissues, not just blood.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron points readers to his earlier thread on this treatment's effects on antibodies, thyroid hormones and thyroid structure in Hashimoto's. The quoted thread claims light is the most effective Hashimoto's treatment, listing lower TSH, antibodies and medication use, higher T3, and that 47% no longer needed thyroid meds.
Source summary and thread relationship - @lowmegatron · 2026-04-01 own thread
lowmegatron shares his article on the effects of near-infrared light on Hashimoto's antibodies and thyroid hormone levels.
Source summary and thread relationship - @lowmegatron · 2026-04-02 original
Author explains Type 2 hypothyroidism as insufficient thyroid hormone activity at the cellular level despite normal gland function, caused by downstream issues like impaired T4-to-T3 conversion, poor hormone transport, or receptor resistance. Standard TSH+T4 testing misses these conditions. Quotes clinical endocrinology source advocating FT4/FT3 testing and T4/T3 combination therapy.
Source summary and thread relationship - @lowmegatron · 2026-04-03 original
Author states T3 thyroid hormone blocks liver fibrosis in animal experiments. Quotes research showing T3 attenuates carbon tetrachloride-induced liver fibrosis in mice, aged TR knockout mice accumulate collagen spontaneously, and bleomycin-induced skin fibrosis is reduced by thyroid hormones. Concludes TR ligands could benefit fibrotic disease progression. Embedded quote from lowmegatron provides detailed context on thyroid hormone, TSH, liver fibrosis associations, and human trial (resmetirom) data.
Source summary and thread relationship - @lowmegatron · 2026-04-03 original
Author explains connection between low body temperature and increased susceptibility to chronic viral and fungal infections. References Broda Barnes on hypothyroidism's role in recurrent infections, and cites multiple studies showing mammalian body temperature evolution restricts fungal growth and lower temperatures enhance viral transmission and impair airway defenses.
Source summary and thread relationship - @lowmegatron · 2026-04-03 own thread gap
lowmegatron promotes his video course covering all aspects of hypothyroidism and low thyroid hormone, with a link.
Source summary and thread relationship - @lowmegatron · 2026-04-04 original
Author quotes Ray Peat on sugar craving as indicator of metabolic need rather than addiction, attributed to hypothyroidism. Embedded post by different account explains physiological effects of high sugar intake on fluid retention, glycation of collagen, and systemic inflammation reduction from diet change.
Source summary and thread relationship - @lowmegatron · 2026-04-04 original
Ray Peat describes historical knowledge that hypothyroidism causes muscle swelling (edema) in children, reversible with thyroid hormone treatment, citing old textbooks and a case study of congenital hypothyroidism presenting as muscular dystrophy.
Source summary and thread relationship - @lowmegatron · 2026-04-04 original
Quoted text and embedded source describing historical use of fluoride to suppress thyroid function in hyperthyroidism (1950s) and observational evidence that fluoridated water is associated with approximately doubled hypothyroidism prevalence in UK practices.
Source summary and thread relationship - @lowmegatron · 2026-04-05 original
Explanation of Type 1 (thyroid gland dysfunction) vs Type 2 (cellular thyroid hormone insufficiency) hypothyroidism, their interaction, and mechanisms by which Type 1 causes Type 2 through increased cortisol and free fatty acids that impair T4-to-T3 conversion and thyroid hormone action.
Source summary and thread relationship - @lowmegatron · 2026-04-05 original
Hypothyroidism elevates free fatty acids, which impair insulin sensitivity and glucose oxidation. Levothyroxine treatment improves insulin sensitivity and halves free fatty acid levels, with benefits noted even in subclinical hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-04-05 original
Up to 50% of daily caloric expenditure maintains body temperature; lower thyroid hormone T3 reduces body temperature and metabolic rate, leading to fat gain and fatigue.
Source summary and thread relationship - @lowmegatron · 2026-04-05 original
Fluoride suppresses thyroid hormone synthesis and T4-to-T3 conversion. Animal experiments show taurine (1.5-3 g/day human equivalent) prevented these effects at high fluoride exposure (4× US water allowance). Historical context: fluoride used pharmacologically for hyperthyroidism in 1950s.
Source summary and thread relationship - @lowmegatron · 2026-04-06 original
URL link and embedded quote from lowmegatron describing myxedema (water retention) as a symptom of hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-04-06 original
Ray Peat quotation on thyroid hormone and vitamin A roles in converting cholesterol to pregnenolone, steroid hormone synthesis, and compensatory cholesterol mechanisms during stress-induced thyroid suppression.
Source summary and thread relationship - @lowmegatron · 2026-04-06 original
Hypothyroidism causes insulin resistance via mechanisms including postreceptor signaling defects, impaired glucose transport, GLUT4 translocation defects, reduced glycogen synthesis, decreased muscle blood flow and oxidative capacity, mitochondrial dysfunction, and leptin/adipokine dysregulation. Thyroid hormone replacement reverses effects.
Source summary and thread relationship - @lowmegatron · 2026-04-06 own thread
lowmegatron lists findings he attributes to experimental 'subclinical' hypothyroidism in rodents: lower glucose infusion rate, higher free fatty acids, higher fasting insulin and HOMA-IR, lower phosphorylated IRS-1-Tyr and GLUT2, and higher TLR4 with downstream NF-κB, IRAK-1, IL-6 and TNF-α. He explains each as promoting insulin resistance.
Source summary and thread relationship - @lowmegatron · 2026-04-06 original
Ray Peat quotation on liver detoxification improvement through limiting cysteine-containing proteins, adding glycine or gelatin, increasing sugar, and optimizing thyroid. Research shows obesity-associated glycine deficiency impairs glycine conjugation pathway for metabolite elimination; restoration after bariatric surgery restores function. Glycine supplementation proposed as potential treatment.
Source summary and thread relationship - @lowmegatron · 2026-04-06 original
Ray Peat quotation and research citations on thyroid dysfunction in type 2 diabetes. Low thyroid function increases tissue vulnerability and diabetes impairs glucose uptake reducing hepatic T3 production. Studies show T2DM patients have significantly lower FT3, FT4, and TSH. Low-carbohydrate diet decreases plasma T3 similar to starvation.
Source summary and thread relationship - @lowmegatron · 2026-04-07 original
Ray Peat explains that hypothyroidism slows muscle relaxation due to ATP depletion, visible in the Achilles reflex test, ECG changes, and heart failure; T3 supplementation restores normal relaxation rates.
Source summary and thread relationship - @lowmegatron · 2026-04-07 original
Post synthesizes three studies showing that hypothyroidism impairs heart diastolic relaxation and electrical recovery (JT interval), and that thyroxine therapy improves these measures.
Source summary and thread relationship - @lowmegatron · 2026-04-07 original
Hypothyroidism impairs insulin secretion and glucose tolerance; study in mice shows PTU and thyroidectomy reduce glucose-stimulated insulin secretion and that islet insulin secretion correlates with T3 and T4 levels.
Source summary and thread relationship - @lowmegatron · 2026-04-07 original
Ray Peat describes personal self-experiment with gelatin supplementation, achieving uninterrupted sleep for ~9 hours after years of nocturnal waking; anecdotal reports from contacts of pain recovery in days from gelatin supplementation.
Source summary and thread relationship - @lowmegatron · 2026-04-08 original
The thyroid testing system flags gland and upstream pituitary/hypothalamus issues but misses thyroid hormone metabolism, free/bound hormones, and reverse T3.
Source summary and thread relationship - @lowmegatron · 2026-04-08 original
Historical overview of myxedema in hypothyroidism: mucopolysaccharide accumulation causes tissue swelling, facial changes, and personality alterations. Introduction of animal thyroid extract in 1891 and later desiccated thyroid (NDT) containing T3 and T4; shift to T4-only medication (levothyroxine) has reduced treatment efficacy.
Source summary and thread relationship - @lowmegatron · 2026-04-08 original
Repost of quoted content about myxedema facial changes with added link.
Source summary and thread relationship - @lowmegatron · 2026-04-08 original
Memory impairment correlates with low T3 and T4 and elevated TSH in depressed hypothyroid patients. Treatment with levothyroxine improved depression, memory, libido, and other cognitive/mood symptoms.
Source summary and thread relationship - @lowmegatron · 2026-04-08 original
Pregnenolone and progesterone act quickly against water retention. Estrogen increases lung water content impairing oxygen transfer (animal studies). High estrogen-to-progesterone ratio occurs in malnourished, low-thyroid, or stressed individuals. Progesterone supplementation can rapidly improve water balance and breathing within an hour.
Source summary and thread relationship - @lowmegatron · 2026-04-09 original
High iodine intake in Japan is associated with increased hypothyroidism prevalence; iodine restriction reversed hypothyroidism in 55% of patients, and reintroduction of high-dose iodine reinstated hypothyroidism in some cases.
Source summary and thread relationship - @lowmegatron · 2026-04-09 original
Hypothyroidism affects vocal function through multiple mechanisms including slowed speech, hoarseness, reduced verbal fluency, pitch changes, and vocal cord drying.
Source summary and thread relationship - @lowmegatron · 2026-04-09 own thread gap
lowmegatron promotes his video course on hypothyroidism and low thyroid hormone, with a link.
Source summary and thread relationship - @lowmegatron · 2026-04-10 original
Author shares Ray Peat's claim that polyunsaturated fats suppress thyroid function and mitochondrial capacity, then elaborates that the primary mechanism involves interference with thyroid hormone transport, conversion, and receptor binding. Author lists pro-metabolic and pro-inflammatory fats, embedding a quote-post on cellular hypothyroidism mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-04-10 original
Author reports using 16,000 IU retinol for slightly elevated T3 (7.7, normal cutoff 7.0) and felt better within hours. Explains mechanistically how T3 and vitamin A support neurosteroid production, linking neurosteroids to mood via GABA_A receptor modulation. Cites historical case series of vitamin A treatment for hyperthyroidism.
Source summary and thread relationship - @lowmegatron · 2026-04-10 original
People on levothyroxine monotherapy show lower T3:T4 ratios and lower active thyroid hormone T3 compared to healthy controls with same TSH, despite normalized TSH. This group also has higher BMI despite lower calorie intake, lower physical activity, and greater antidepressant/statin use.
Source summary and thread relationship - @lowmegatron · 2026-04-10 original
Thyroid hormone resistance may underlie fibromyalgia. Patients with normal thyroid labs respond to supraphysiologic T3 doses without clinical hyperthyroidism effects. Study suggests euthyroid fibromyalgia represents partial peripheral thyroid hormone resistance. Author warns high-dose T3 is dangerous without deficiency or cellular resistance.
Source summary and thread relationship - @lowmegatron · 2026-04-12 original
Explains mechanism by which stress causes 'hidden hypothyroidism'—reduced thyroid hormone T3 activity at cellular level despite normal blood tests. Describes stress markers, why standard labs miss the condition, biochemical mechanisms, indicators, and common causes.
Source summary and thread relationship - @lowmegatron · 2026-04-12 original
Comprehensive explanation of selenium's role in thyroid hormone conversion and autoimmune thyroid disease. Covers mechanisms in acute stress, effects in Hashimoto's via RCT and case study, effects in Graves' disease and thyroid eye disease, synergy with myo-inositol, and recommended dosing.
Source summary and thread relationship - @lowmegatron · 2026-04-12 original
Shares direct quotation on nasal mucosa changes in hypothyroidism, citing thyroid hormone receptors and edema/inflammation mechanism, with confirmation from experimental rat studies.
Source summary and thread relationship - @lowmegatron · 2026-04-13 original
Quotes Ray Peat on T3's role in maintaining core temperature and intracellular respiration. Discusses nervous system slowing in hypothyroidism including reaction time, memory, and perception. Presents evidence linking memory decline to low thyroid hormones and improvement with treatment.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Crash dieting reduces active thyroid hormone T3, increases muscle energy efficiency, and decreases resting metabolic rate; T3 supplementation reverses these metabolic adaptations.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Desiccated thyroid supplementation based on basal temperature measurement decreased migraine frequency and severity in 95% of cases within one month, according to work by Broda Barnes, M.D.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Multiple expert and research sources explain that blood sugar fasting triggers liver suppression of T3 thyroid hormone to preserve tissue, and that dietary carbohydrate is essential for T3 production; thyroid hormone supplementation corrects metabolic downregulation in weight loss without accelerating metabolism above normal.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Cell research demonstrates that retinoic acid (vitamin A form) and thyroid hormone T3 are necessary for development of red and green color-detecting cones in the eye; thyroid hormone-converting enzyme DIO2 regulates this cone differentiation process.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Ray Peat explains that hypothyroidism slows digestion and increases bacterial transit time; extended case report of patient whose SIBO was undiagnosed hypothyroidism despite normal TSH and free T4, resolved after T3 supplementation; study found hypothyroid patients 11 times more likely to have SIBO.
Source summary and thread relationship - @lowmegatron · 2026-04-14 original
Hypothyroidism impairs the liver's ability to produce glucose during stress, causing hypoglycemia. Thyroid therapy restores normal liver function and glucose homeostasis.
Source summary and thread relationship - @lowmegatron · 2026-04-15 original
Bacterial endotoxin (LPS) lowers both TSH and thyroid hormones, creating misleading thyroid test results. Multiple dietary and supplemental compounds may reduce endotoxin burden or its effects.
Source summary and thread relationship - @lowmegatron · 2026-04-15 original
Ray Peat personal account of improved sleep quality and energy after starting thyroid supplementation, with spontaneous reduced coffee consumption.
Source summary and thread relationship - @lowmegatron · 2026-04-15 original
Low thyroid hormone elevates histamine, estrogen, and serotonin, contributing to urticaria. Thyroid hormone supplementation improved urticaria in 80% of women with Hashimoto's through TSH modulation of immune response.
Source summary and thread relationship - @lowmegatron · 2026-04-16 original
Hypothyroid people store insufficient liver glycogen, causing elevated adrenaline and cortisol during sleep to maintain blood glucose. Symptoms include nocturnal awakening with pounding heart.
Source summary and thread relationship - @lowmegatron · 2026-04-16 original
Hypothyroidism increases oxidative stress and atherosclerosis risk. Broda Barnes' diagnostic method using basal temperature and symptom assessment with NDT treatment reduced heart disease diagnoses by 94%. Levothyroxine monotherapy reduces but does not normalize oxidative stress markers.
Source summary and thread relationship - @lowmegatron · 2026-04-16 original
Hypothyroidism increases fistula formation risk 4-fold after laryngeal cancer salvage surgery. University of Michigan study found levothyroxine supplementation reduced fistula formation by ~50% and follow-up surgery need by 70%. Author speculates T3 supplementation could improve outcomes further.
Source summary and thread relationship - @lowmegatron · 2026-04-16 original
Quoted account: author tested retinol (vitamin A) at 16,000 IU for slightly elevated T3 (7.7, cutoff 7.0) and reported subjective neurosteroid-like benefits. Ray Peat quote explains antagonism between vitamin A and thyroid hormone, supported by historical and contemporary research.
Source summary and thread relationship - @lowmegatron · 2026-04-16 original
Before-and-after case report: 6 weeks of NDT USP treatment normalized basal metabolic rate (was 38% below normal), improved energy production, reduced facial edema, and resulted in 10 lbs weight loss. Author notes NDT contains both T4 and T3, differs from levothyroxine monotherapy, and acknowledges individual variation in response.
Source summary and thread relationship - @lowmegatron · 2026-04-17 original
Levothyroxine monotherapy fails to reproduce normal thyroid physiology even when TSH normalizes. Hypothyroid patients on levothyroxine have higher T4 and lower T3 than healthy controls at equivalent TSH. Despite lower calorie intake, levothyroxine-treated patients have higher BMI and greater use of statins and antidepressants.
Source summary and thread relationship - @lowmegatron · 2026-04-17 original
Randomized controlled trial found 300 mg bioidentical progesterone at bedtime for 12 weeks significantly increased free T4 in postmenopausal women without thyroid disease. Ray Peat's mechanism: estrogen inhibits thyroid hormone secretion while progesterone promotes release. No significant changes in T3 or TSH. Progesterone also effectively reduced hot flushes and night sweats.
Source summary and thread relationship - @lowmegatron · 2026-04-17 original
Ray Peat claim that nocturnal blood sugar drops trigger inflammatory mediators and adrenaline; wool cap/stockings and sugar before bed or upon waking may alleviate night-stress problems. Post shares Ray Peat quote and embedded quote from @lowmegatron with extended Ray Peat passage on thyroid and hypoglycemia mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-04-18 original
Author discusses Ray Peat's critique of modern blood-based thyroid testing versus pre-1945 symptom and indirect marker methods. Explains evolution of thyroid diagnostics from 1945 onward and notes limitations of TSH, T4, T3 blood tests in assessing tissue-level thyroid hormone activity. Cites two recent papers on the mismatch between blood markers and tissue response.
Source summary and thread relationship - @lowmegatron · 2026-04-18 original
Ray Peat claim that vitamin A deficiency causes hypoglycemia and increased hunger through blood sugar mechanism. Author cites two studies: animal study showing hypoglycemia in vitamin A-deprived young animals, and pediatric sepsis study showing vitamin A deficiency correlates with hypoglycemia and severe illness. Embedded post from @lowmegatron discusses hypothyroidism as cause of hypoglycemia with multiple cited studies.
Source summary and thread relationship - @lowmegatron · 2026-04-19 original
Brief reminder that hypothyroidism can cause chronic nasal congestion. Embedded quote from @lowmegatron explains mechanism: mucosal swelling from thyroid hormone deficiency; cites nasal biopsy findings in hypothyroid patients and experimental rat model showing similar effects.
Source summary and thread relationship - @lowmegatron · 2026-04-19 original
lowmegatron says red light therapy was discovered by chance. He states that Endre Mester's ruby laser, intended to cause tumors, was weaker than advertised and instead produced rapid hair regrowth and faster tissue healing.
Source summary and thread relationship - @lowmegatron · 2026-04-19 original
Personal anecdote from embedded post: commenter's cholesterol was 265 and they requested thyroid testing; thyroid numbers were elevated and subsequently normalized after hypothyroidism treatment.
Source summary and thread relationship - @lowmegatron · 2026-04-20 original
Propranolol lowers thyroid hormone T3 and increases reverse T3 (rT3). In hypothyroid patients on thyroxine, propranolol at high dose (160 mg/day) reduced T3, raised rT3, increased TSH and weight; withdrawal led to T3 and pulse increase with rT3 and weight decrease.
Source summary and thread relationship - @lowmegatron · 2026-04-20 original
Study of obese subjects at altitude (400m to 2,000m) found increased basal metabolic rate, weight loss, reduced food intake, and improved blood pressure. Mechanism involves increased thyroid hormones T3 and T4 with reduced TSH. Multiple studies show higher thyroid hormone levels at altitude.
Source summary and thread relationship - @lowmegatron · 2026-04-21 original
Synthesizes John C. Lowe's research and reviews on thyroid hormone therapy for fibromyalgia, presenting evidence that combined T4/T3 therapy, T3 alone, and supraphysiologic T3 doses were effective treatments. Discusses inadequate thyroid hormone regulation hypothesis, metabolic failure, and peripheral thyroid hormone resistance. Notes normal TSH/thyroid hormone levels may not reflect tissue-level deficiency.
Source summary and thread relationship - @lowmegatron · 2026-04-21 original
Explains that hypothyroidism/myxedema causes severe reductions in brain glucose and oxygen consumption and cerebral blood flow (26-38% decreases), with analogy to depression's metabolic signature. Cites 1950 study showing recovery of cerebral metabolism with thyroid therapy, and 2020 paper linking impaired brain glucose metabolism to depression and hypothyroidism. Embedded quote discusses glucose metabolism in prefrontal cortex in depression and factors reducing glucose oxidation (hypothyroidism, high serotonin, high estrogen, low thiamine).
Source summary and thread relationship - @lowmegatron · 2026-04-21 original
Shares Ray Peat quotation on hormonal recovery through essential nutrient-rich foods (eggs, orange juice, oysters, liver) or pleasurable foods (milkshakes, ice cream at bedtime) and thyroid or pregnenolone supplementation after intense stress. Embedded quoted post contains Ray Peat quote on salty snacks and ice cream for sleep improvement, plus author's personal bedtime snack recipe (honeydew, yogurt, ice cream, salt).
Source summary and thread relationship - @lowmegatron · 2026-04-21 original
Notes that JFK was prescribed T3 (liothyronine) for hypothyroidism in 1955, highlighting access disparity: a U.S. president received T3 therapy 70 years ago while most hypothyroid patients today cannot obtain it. Cites discharge documentation and medical histories. Embedded quoted post provides extensive background on JFK's T3 treatment timeline, basal metabolic rate testing, and alternative thyroid assessment methods (Broda Barnes temperature test).
Source summary and thread relationship - @lowmegatron · 2026-04-21 original
Presents Ray Peat's hypothesis that thyroid antibodies represent a cleanup mechanism in low thyroid states, and that correcting thyroid hormone deficiency reduces inflammation and lowers antibody levels. Supported by evidence that levothyroxine supplementation reduces TPOAb and TgAb in Hashimoto's patients and decreases thyroid tissue destruction (assessed by T1-mapping MRI). Notes near-infrared light as alternative non-hormone treatment achieving similar antibody reduction.
Source summary and thread relationship - @lowmegatron · 2026-04-22 original
Low-level laser therapy (LLLT) is claimed to regenerate thyroid tissue, lower TPOAb antibodies, and help some Hashimoto's patients discontinue thyroid medication, with cited preliminary pilot study data.
Source summary and thread relationship - @lowmegatron · 2026-04-23 original
Blood thyroid hormone measurement inadequate for evaluating tissue-level thyroid function; polyunsaturated fatty acids suppress thyroid hormone action by inhibiting T4-to-T3 conversion, impairing T3 receptor binding, and displacing thyroid hormones from serum proteins.
Source summary and thread relationship - @lowmegatron · 2026-04-23 original
Ray Peat quotation on thermogenic substances and inflammation; study cited showing mild hypothermia promotes pro-inflammatory cytokine production in monocytes.
Source summary and thread relationship - @lowmegatron · 2026-04-23 original
Author reports 5 people reducing hypothyroid symptoms and increasing T3 via increased calories/carbohydrates; Ray Peat on T4-to-T3 conversion via diet; multiple studies on carbohydrate restriction's effects on thyroid hormones (T3, rT3, T4).
Source summary and thread relationship - @lowmegatron · 2026-04-23 original
Ray Peat on hypothyroidism's effects on temperature, cortisol, adrenaline and sleep via sympathetic nervous system activation. Study shows hypothyroidism increases cortisol (+60%), adrenaline (doubled), noradrenaline (doubled), aldosterone (doubled); reverses with T3 replacement and reduces blood pressure.
Source summary and thread relationship - @lowmegatron · 2026-04-24 original
Salt restriction increases serotonin and noradrenaline; lists multiple negative effects of elevated serotonin on thyroid, thermogenesis, weight, blood sugar, and brain function. Study shows low-salt diet increases 24-hour urinary serotonin by 42% and noradrenaline by 77%.
Source summary and thread relationship - @lowmegatron · 2026-04-24 original
Ray Peat quote on hypothyroidism causing low CO₂ production via reduced mitochondrial respiration, leading to hyperventilation susceptibility and increased ammonia/lactate production with psychiatric risks. Post clarifies low CO₂ production differs from low blood CO₂.
Source summary and thread relationship - @lowmegatron · 2026-04-24 original
Lita Lee quote on pregnenolone as major anti-aging steroid; claims adequate thyroid converts LDL cholesterol to pregnenolone which opposes cortisol toxicity, prevents panic attacks, and converts to progesterone/DHEA as needed. States pregnenolone increases mental focus and prevents cognitive decline. Embedded Ray Peat quote on pregnenolone and progesterone's rapid water-retention effects via estrogen opposition.
Source summary and thread relationship - @lowmegatron · 2026-04-24 original
Explains water retention as sign of hypothyroidism linked to disorganized biological water without adequate thyroid-potentiated energy. Describes myxedema (mucin swelling) accumulating under eyes and jawline, with secondary effects on digestion (constipation, SIBO risk), joints (inflammatory swelling), nasal passages, and voice. Before/after photos of hypothyroidism treatment shown. Embedded case of woman with SIBO misdiagnosed for years, eventually found to have thyroid hormone (T3) deficiency despite normal TSH/free T4, with rapid improvement on T3 treatment and SIBO resolution.
Source summary and thread relationship - @lowmegatron · 2026-04-24 original
Reports 1990s animal research finding pregnenolone several hundred times more potent than tested memory enhancers, with mechanism via transcription facilitation. Cites human studies showing pregnenolone improves memory and pregnenolone augmentation improves attention/working memory in schizophrenia patients. Embedded post on thyroid hormone correlation with memory in depressed patients, showing levothyroxine treatment resolved multiple symptoms including failing memory.
Source summary and thread relationship - @lowmegatron · 2026-04-25 original
Ray Peat quote recounting personal experience with moles: avoided direct application due to cancerization risk; reports observed shrinking of moles within days when applying progesterone or DHEA (in vitamin E) 1 inch away, with steady shrinking over 7-10 days. Also describes increasing T3 thyroid hormone dosing to maintain normal daytime temperature and elevated resting pulse (95 bpm), and soaking in epsom salts/baking soda/salt baths for mole acceleration.
Source summary and thread relationship - @lowmegatron · 2026-04-25 original
Reports pregnenolone activates emotional regulation brain circuits, reducing negative-circuit activation linked to anxiety. Explains mechanism via conversion to allopregnanolone, noting allopregnanolone was prescribed for postpartum depression at ~40,000 USD (synthetic analog at 15,000+ USD), while pregnenolone costs dollars. Cites research using 400 mg oral pregnenolone dose. Attributes Ray Peat quote on thyroid hormone and vitamin A role in cholesterol-to-pregnenolone conversion. Recommends Balanced Body Mind (UK) and Raena (US) pregnenolone brands without disclosed affiliation.
Source summary and thread relationship - @lowmegatron · 2026-04-25 original
Ray Peat quote on sodium's importance in sparing magnesium loss during stress and hypothyroidism, suggesting eating salty foods when craved aids magnesium retention. Embedded post on magnesium's stress-induced insulin resistance effects, reporting randomized trial of IV magnesium sulfate (7.5 g over 8 hrs) vs placebo in ICU patients with stress hyperglycemia, showing magnesium improved HOMA-IR insulin resistance, blood glucose, serum/intracellular magnesium, and adiponectin by day 3.
Source summary and thread relationship - @lowmegatron · 2026-04-27 original
Ray Peat explains that thyroid hormone is not a stimulant but corrects sleep disorders caused by hypothyroidism. In hypothyroidism, elevated adrenaline, estrogen, and cortisol with low magnesium disturb deep sleep. T3 with magnesium reliably treats insomnia, cramps, and anxiety. Cited sleep study shows hypothyroid patients have significantly decreased stage 3 and 4 (deep) sleep, which increases after desiccated thyroid treatment. Deep sleep stages essential for physical restoration, immune support, tissue repair, and growth hormone release.
Source summary and thread relationship - @lowmegatron · 2026-04-27 original
Hypothyroidism increases blood pressure by activating adrenal glands and elevating aldosterone, adrenaline, noradrenaline, and cortisol. Sympathetic and adrenal activation in hypothyroidism is reversible with thyroid hormone treatment. Embedded post describes hypothyroidism increasing oxidative stress (MDA elevation) and atherosclerosis risk; cites Broda Barnes' basal temperature and NDT treatment method reduced heart disease diagnoses by 94% compared to Framingham Study expectations.
Source summary and thread relationship - @lowmegatron · 2026-04-27 original
Subclinical hypothyroidism (elevated TSH, normal T4) treated as harmless but carries risk. TSH itself is harmful, causing insulin resistance and atherosclerosis independently. TSH directly activates TLR4 inflammatory pathway, increases MCP-1 (promoting atherosclerosis), and correlates linearly with insulin resistance (HOMA-IR) even within normal TSH range. Embedded post describes JAMA article recommending TSH <10 and weaning older adults off levothyroxine, citing negative effects of TSH including inflammation, insulin resistance, atherosclerosis, and miscarriage risk; notes T3 excluded from study and lower T3 causes most hypothyroid symptoms.
Source summary and thread relationship - @lowmegatron · 2026-04-28 original
List of interventions reported to improve insulin sensitivity with supporting references; embedded quote on thyroid-insulin pathways in hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-04-28 original
Low testosterone twice as likely in hypothyroid men; thyroid supplementation doubles free/total testosterone and halves prolactin; sexual dysfunction reversible with thyroid correction.
Source summary and thread relationship - @lowmegatron · 2026-04-28 original
Thyroid hormone reverses liver fibrosis; low TSH and T3 associated with increased fibrosis risk; resmetirom (thyroid hormone receptor agonist) improves NASH and fibrosis in RCT; optimal range essential.
Source summary and thread relationship - @lowmegatron · 2026-04-29 original
Ray Peat quote cautioning against Celtic salt due to heavy metal contamination; endorsement of refined salt (Morton's); embedded quote on salt restriction and serotonin elevation.
Source summary and thread relationship - @lowmegatron · 2026-04-29 original
Carbohydrates with protein meals mitigate stress response to hypoglycemia. Low-carbohydrate diets increase muscle loss and lower thyroid hormone T3 despite isocaloric calories and equal protein.
Source summary and thread relationship - @lowmegatron · 2026-04-29 original
Hypothyroidism increases hypoglycemia risk through multiple mechanisms: blunted growth hormone and cortisol responses, reduced gluconeogenesis, impaired glycogenolysis, reduced glucagon secretion, prolonged insulin activity, and reduced glucose absorption. Extensive symptom list and pathophysiological explanations provided.
Source summary and thread relationship - @lowmegatron · 2026-04-29 original
Nocturnal hypoglycemia triggers counterregulatory hormones (adrenaline, noradrenaline, cortisol, ACTH) that cause wakefulness, often around 3 AM. Multiple risk factors identified: hypothyroidism, high starch/protein before sleep, low carbohydrate intake, high stress. Recommended interventions include adequate daytime carbohydrates, sugar-based foods with protein/fat/minerals before bed.
Source summary and thread relationship - @lowmegatron · 2026-04-29 original
Historical shift in American metabolism from 1940s-50s: elevated free fatty acids now interfere with glucose oxidation, creating insulin resistance and elevated adrenaline even at normal blood glucose levels. Embedded post details how blocking fat absorption reverses insulin resistance before weight loss via Randle cycle mechanism.
Source summary and thread relationship - @lowmegatron · 2026-04-30 original
Transcutaneous CO2 application healed 66% of chronic diabetic wounds versus 0% in control group. CO2 produced by mitochondria during T3-regulated glucose oxidation; hypothyroidism impairs wound healing via disrupted angiogenesis.
Source summary and thread relationship - @lowmegatron · 2026-04-30 original
Enclosed humid wound environment allows fingertip regeneration including nail regrowth by maintaining elevated CO2-to-oxygen ratio. Low thyroid reduces CO2 production; combined CO2 exposure plus thyroid supplementation proposed for functional brain ischemia.
Source summary and thread relationship - @lowmegatron · 2026-04-30 original
Hypothyroid dogs accumulate mucopolysaccharides and hyaluronic acid in skin, causing myxedema with characteristic facial features including thickened lips and drooping eyelids.
Source summary and thread relationship - @lowmegatron · 2026-04-30 original
Severe hypothyroidism causes mental hebetude, slowed cognition, irritability, social withdrawal, and risk of acute mania, melancholia or dementia unless treated early. Natural desiccated thyroid USP therapy relieves mental disturbances. Historical context: Dr. Murray pioneered thyroid extract injection for myxedema in 1891.
Source summary and thread relationship - @lowmegatron · 2026-04-30 original
Personal account of recovery from depression and learned helplessness after starting Cynoplus with 3:1 T3 ratio following thyroiditis and thyroid crash. Caller reports rapid mood lift and emergence of creative force.
Source summary and thread relationship - @lowmegatron · 2026-05-01 original
Extended quotation of Ray Peat discussing carbon dioxide's role in cancer metabolism, lactic acid suppression, and healing via bicarbonate/baking soda; links low thyroid, calcium, vitamin D, and sodium to impaired CO2 production.
Source summary and thread relationship - @lowmegatron · 2026-05-01 original
Intranasal CO2 delivery and rebreathing devices may abort migraine; hyperventilation worsens migraine by reducing tissue CO2; active T3 thyroid needed for optimal mitochondrial CO2 production; cited mechanisms include CGRP inhibition and calcium channel modulation.
Source summary and thread relationship - @lowmegatron · 2026-05-02 original
Light therapy reduced anxiety, depression, fatigue, pain, and sleep problems in Hashimoto's hypothyroidism patients after 3 weeks, despite ongoing levothyroxine treatment.
Source summary and thread relationship - @lowmegatron · 2026-05-02 own thread
Link-only post under a parent saying anxiety, depression, fatigue, pain and sleep problems were reduced in Hashimoto's patients after 3 weeks of light therapy. That claim is in the parent, not this post.
Source summary and thread relationship - @lowmegatron · 2026-05-02 original
Thyroid hormone is required for protein synthesis and muscle maintenance.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author synthesizes evidence linking thyroid hormone, CO₂ production, and diabetes complications; presents Broda Barnes case study of diabetic patients on NDT with improved outcomes, and discusses CO₂ therapy for wound healing with mechanistic explanation.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author presents evidence that T3 thyroid hormone is critical for wound healing; cites studies on hypothyroidism impairing wound repair and topical T3 accelerating healing in animal models and post-laryngectomy outcomes.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author claims dementia risk is 2-3× higher in hypothyroidism but reduced up to 30% with T3 thyroid hormone; attributes dementia-insomnia correlation to inadequate T3 activity; cites population study and UTMB research on combination therapy.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author defines stress as energy demand exceeding supply and claims metabolic slowdown through thyroid hormone effects occurs but often undetected in blood tests.
Source summary and thread relationship - @lowmegatron · 2026-05-04 own thread
lowmegatron argues that 'hidden hypothyroidism' exists because symptoms come from low T3, and problems after hormones leave the gland can still cause hypothyroid symptoms.
Source summary and thread relationship - @lowmegatron · 2026-05-04 own thread
lowmegatron says TSH is the most common hypothyroidism test and is assumed 'low = good', but claims stress also lowers TSH, making it an unreliable marker of thyroid hormone activity.
Source summary and thread relationship - @lowmegatron · 2026-05-04 own thread
lowmegatron lists claimed indicators of low tissue thyroid action: feeling cold, high reverse T3, high reverse T3:T3 ratio, hypothyroid symptoms, low resting metabolic rate, and low waking basal temperature.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author quotes Ray Peat on tremor resolution with thyroid supplementation and presents study on thyroid hormone relationship to Parkinson's motor symptoms; embeds prior post on aspirin and dopamine in Parkinson's.
Source summary and thread relationship - @lowmegatron · 2026-05-04 original
Author quotes Ray Peat on thyroid and eczema/psoriasis mechanism, includes personal Facebook testimony of 30-year psoriasis resolution on T3, cites Hashimoto's prevalence in psoriasis patients, and embeds prior detailed personal experience post on T3 benefits across multiple conditions.
Source summary and thread relationship - @lowmegatron · 2026-05-05 original
Author quotes Ray Peat criticizing FDA omega-3 (EPA/DHA) safety assessment and linking fish oil to antithyroid, immunosuppressive, glucose oxidation depression, and other adverse effects; connects to Alzheimer's pathology via energy failure and glucose metabolism impairment.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Explains hypothyroidism mechanism for skinny-fat phenotype using rodent experiments; describes suppressed metabolism, preferential fat storage, and concurrent muscle loss via cortisol.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Author presents research on subclinical hypothyroidism, TSH involvement in insulin resistance via inflammation and TLR4 signaling, and a list of interventions that may improve insulin sensitivity including thyroid hormone correction, supplements, and lifestyle factors.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Author shares embedded post claiming mold exposure causes chronic fatigue and brain fog by downregulating thyroid hormone T3 conversion, and that thyroid hormone supplementation improved symptoms in 4 patients who returned to work.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Author explains hypothyroidism causes oxidative stress via lipid peroxidation, details mechanisms and biomarkers (MDA, PON1), cites study showing malondialdehyde elevation in hypothyroid patients and partial recovery with thyroid hormone replacement, and notes TSH correlation with oxidative markers.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Author presents research showing hypothyroidism causes nasal congestion through TSH-mediated effects on nasal mucosa, citing histological and physiological changes, and noting that even subclinical hypothyroidism may affect nasal symptoms.
Source summary and thread relationship - @lowmegatron · 2026-05-06 original
Author reports that T3 thyroid hormone clears nasal congestion for many people based on social media replies, acknowledges sampling bias toward those with thyroid issues.
Source summary and thread relationship - @lowmegatron · 2026-05-07 original
Author synthesizes research showing endotoxin causes multiple health conditions and vitamin A reduces endotoxin half-life and pathophysiological effects in animal studies.
Source summary and thread relationship - @lowmegatron · 2026-05-08 original
Author quotes Ray Peat on thyroid hormone T3 decline with aging and impact on steroid hormone production (pregnenolone and progesterone); presents human study showing pregnenolone reduces stress-induced alcohol cravings.
Source summary and thread relationship - @lowmegatron · 2026-05-08 original
Author states that severe hypothyroidism reduces basal metabolic rate up to 40% based on historical sealed-room calorimetry studies; attributes effect to reduced T3 activity.
Source summary and thread relationship - @lowmegatron · 2026-05-08 original
Compilation of Ray Peat quotes and peer-reviewed citations on hypothyroidism, CO2 production, sodium retention, and respiratory dysfunction; embedded quote on sodium and magnesium sparing.
Source summary and thread relationship - @lowmegatron · 2026-05-08 original
Synthesis of research on estradiol as risk factor and progesterone/allopregnanolone as treatment options for cocaine use disorder in women; Ray Peat commentary on hormone effects on brain excitation and mental function.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Double-blind randomized trial showing transcutaneous CO2 therapy healed 66% of chronic diabetic wounds vs 0% in placebo; explanation of CO2 mechanism via mitochondrial respiration, thyroid hormone dependence, and angiogenesis.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Ray Peat quote on thyroid hormone roles in CO2, lactic acid, hormone regulation, electrolyte balance and fatty acid ratios; explanation of hypotonicity mechanism; embedded quote on carbonated water for osteoarthritis.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Synthesis of hypothyroidism effects on glucose oxidation and CO2 production, linking to depression, insulin resistance, type 2 diabetes, obesity and metabolic syndrome; embedded quoted account on depression and thyroid.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Rat study showing thyroid hormone essential for liver regeneration after 70% hepatectomy; comparison of recovery rates with and without thyroid hormone; embedded quoted account on hypothyroidism, liver fibrosis, NAFLD, thyroid hormone receptor drugs, and multiple fibrotic diseases.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
CO2 inhibits mast cell degranulation in vitro and intranasal CO2 treatment provides rapid symptom relief in allergic rhinitis; thyroid hormone T3 influences CO2 production. Author proposes improving thyroid status, bag breathing, or OTC CO2 products as potential interventions.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Rebreathing into a paper bag increases CO2 retention and can abort migraines; author reviews case reports from 1980s and recent randomized controlled trial showing pain relief with rebreathing device. Discusses CO2 mechanism via CGRP, thyroid hormone link to CO2 production, and potential benefit of hyperventilation avoidance.
Source summary and thread relationship - @lowmegatron · 2026-05-11 original
Historical and contemporary evidence that thyroid hormone improves rheumatoid and arthritic symptoms. Author cites early 20th-century clinical observations by Hertoghe, describes Broda Barnes' use of natural desiccated thyroid (NDT) to improve arthritis and metabolic markers, and reviews 1990s mechanistic research linking thyroid involvement to rheumatological disorders.
Source summary and thread relationship - @lowmegatron · 2026-05-12 original
Oral sodium bicarbonate corrects metabolic acidosis in chronic kidney disease patients, raising serum CO2 levels and improving thyroid hormone function (T3 and T4) while preserving kidney function.
Source summary and thread relationship - @lowmegatron · 2026-05-12 original
Ray Peat quotation regarding timing of thyroid hormone dosing: T3 (Cynomel) is depleted overnight allowing proinflammatory TSH to rise; bedtime dosing of combined T3+T4 (Cynoplus) may better suppress TSH. Embedded post discusses thyroid hormone effects on sleep architecture and quality.
Source summary and thread relationship - @lowmegatron · 2026-05-12 original
1938 clinical observation that thyroid hormone administration consistently lowers total serum cholesterol. Author emphasizes diagnostic limitations of TSH testing via embedded Ray Peat commentary on historical misclassification of thyroid disease prevalence.
Source summary and thread relationship - @lowmegatron · 2026-05-12 original
Ray Peat quotation describing anxiety as a thyroid deficiency symptom reflecting hypersensitivity of autonomic nervous system. Author cites evidence that hypothyroidism increases sympathetic activation and adrenaline/noradrenaline production; thyroid hormone suppresses catecholamine secretion. In hypothyroid patients on T4 monotherapy, adding T3 improves anxiety, depression, and quality of life.
Source summary and thread relationship - @lowmegatron · 2026-05-12 original
Case report of hypothyroid patient treated to optimize T3/reverse-T3 ratio, achieving complete resolution of migraines, headaches, vertigo, tinnitus, ear fullness, itching, bronchitis and allergies. Author describes optimization strategy targeting FT3 upper 20% range, TT3/RT3 ratio of 10:1, low-normal T4, and twice-daily T3 dosing.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Quoted account reports cervical spine osteoarthritis pain resolved after thyroidectomy and levothyroxine initiation; physician stated no connection.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Comprehensive list of oral and dental manifestations of hypothyroidism including macroglossia, malocclusion, delayed tooth eruption, and periodontal health effects; explanation of mucopolysaccharide accumulation mechanism.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Case report of severe psychiatric symptoms (delusions, hallucinations, disorganized speech) caused by severe hypothyroidism (TSH >100) resolving within days of levothyroxine initiation; embedded quote discusses depression and psychosis as overlooked hypothyroidism manifestations, challenges standard thyroid testing, and attributes mechanism to reduced T3 brain bioavailability.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Hyponatremia (low blood sodium) as complication of hypothyroidism with case report of resolution upon levothyroxine treatment; symptom progression from early to advanced stages; mechanistic explanation citing Ray Peat on reduced carbon dioxide formation and sodium retention.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Ascites (abdominal fluid buildup) as manifestation of hypothyroidism; case report of 20 lb abdominal water weight loss (28 cm waist reduction) with euthyroid status; embedded quote explains water retention mechanism via disorganized biological water due to insufficient thyroid-mediated energy, myxedema pathophysiology, and systemic effects including SIBO risk and joint swelling.
Source summary and thread relationship - @lowmegatron · 2026-05-13 original
Urticaria/chronic hives caused by hypothyroidism via elevated histamine and serotonin; case report of Hashimoto's thyroiditis patient with recurrent urticaria completely resolved after levothyroxine dose titration to euthyroid state, discontinuing topical treatments and antihistamines.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
Hypothyroidism causes reversible nail changes affecting majority of patients; prevalence data on fragility, slow growth, thinning, onycholysis, brittleness, white spots, striations and pitting; all resolved with thyroid hormone replacement.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
lowmegatron quotes Ray Peat, who says that thyroid makes the hair strong and that a high metabolic rate can create a static field that helps hair stand up.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
Absent lunula (nail crescent) is associated with depression, hypothyroidism, and various systemic disorders; quoted Ray Peat anecdote about losing lunula after thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
Calories and carbohydrates increase active T3 thyroid hormone by improving conversion; carbohydrate is the specific dietary driver; fat-only overfeeding produced no T3 change; T4 production unaffected by diet.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
Quoted Ray Peat anecdote: hangnails disappeared after getting progesterone on hands in lab accident, never returned; nested anecdote about mole changes with progesterone/DHEA and T3 dosing.
Source summary and thread relationship - @lowmegatron · 2026-05-14 original
lowmegatron compiles Ray Peat quotes saying that copper is crucial for hair and skin color and for oxygen use and energy, that excess iron can block copper absorption, that cytochrome oxidase is copper-dependent and is restored by red light, thyroid and progesterone, and that T3 increases copper absorption.
Source summary and thread relationship - @lowmegatron · 2026-05-15 original
CO2 exposure lowers stress-induced high pulse in rats by inhibiting sympathetic nervous system activation rather than activating parasympathetic; artificially produced CO2 water has same effect as natural CO2 springs; CO2 absorption increases skin oxygenation.
Source summary and thread relationship - @lowmegatron · 2026-05-15 original
Thyroid expert Dr. Broda Barnes noted his hypothyroid patients on NDT had no diabetes complications; T3 enables higher CO2 production which improves diabetic complications; CO2 therapies improve diabetic neuropathy and ulcer healing.
Source summary and thread relationship - @lowmegatron · 2026-05-15 original
Hypothyroidism causes magnesium loss in skeletal and cardiac muscle; sodium spares magnesium which is lost during stress and hypothyroidism; IV magnesium improved stress-induced insulin resistance in ICU patients.
Source summary and thread relationship - @lowmegatron · 2026-05-15 original
2x 250 mg magnesium and potassium lowered cortisol by nearly 50% and improved sleep in type 2 diabetes; insomnia dropped from 95% to 60%; severe insomnia dropped from 38% to 0%; lower cortisol likely improves thyroid conversion.
Source summary and thread relationship - @lowmegatron · 2026-05-15 original
Case of 32-year-old woman misdiagnosed with generalized anxiety disorder and treated with sertraline for 10 months; thyroid labs eventually revealed hypothyroidism (high TSH, low T4); switching to thyroid hormones resolved anxiety and improved sleep, concentration, and energy within 2 months.
Source summary and thread relationship - @lowmegatron · 2026-05-16 original
Ray Peat explanation of thyroid hormone T3 role in carbon dioxide formation, cellular respiration, and bone formation; embedded quoted post details baking soda study on bone loss reduction via bicarbonate.
Source summary and thread relationship - @lowmegatron · 2026-05-16 original
Brief claim that 2/3 chronic diabetic wounds healed with CO2 gas versus none in air control; embedded quoted post provides detailed study results and mechanistic explanation linking CO2, thyroid hormone, and wound healing.
Source summary and thread relationship - @lowmegatron · 2026-05-16 original
Brief claim that hypothyroidism causes nasal congestion possibly via reduced CO2 production; embedded quoted post provides detailed mechanistic explanation and experimental evidence.
Source summary and thread relationship - @lowmegatron · 2026-05-16 original
Ray Peat quotation on carbon dioxide's stabilizing effect on brain and vasodilation; embedded quoted post presents case reports and clinical studies on paper bag rebreathing for migraine prevention via CO2 retention.
Source summary and thread relationship - @lowmegatron · 2026-05-18 original
Early clinical study treating children with metabolic insufficiency (low metabolic rate with normal thyroid labs) using T3 thyroid hormone; detailed symptom resolution rates and mechanistic differences from hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-05-18 own thread
lowmegatron quotes a 1950s study of children with metabolic insufficiency or hypothyroidism who improved on liothyronine (T3) after earlier desiccated thyroid or thyroxine gave inadequate responses. The quoted results include improved appetite, bowel function, bone age and mood, and smoother hair. He interprets the findings as evidence of hidden hypothyroidism involving thyroid hormone utilization.
Source summary and thread relationship - @lowmegatron · 2026-05-18 original
Hypothyroidism causes speech and voice disturbances including vocal cord swelling, throat symptoms, and measurable changes in voice parameters; effects often reverse with proper treatment.
Source summary and thread relationship - @lowmegatron · 2026-05-19 original
Hypothyroidism causes endothelial dysfunction independent of confounders; T3 improves endothelial function acutely on resistance vessels; dysfunction transiently worsens during thyroid hormone withdrawal and immediately improves with hormone restoration.
Source summary and thread relationship - @lowmegatron · 2026-05-19 original
Levothyroxine normalizes TSH but does not fully correct metabolic rate reduction in obese hypothyroid women; desiccated thyroid and T3 replacement show greater weight loss; metabolic effect depends on T4-to-T3 conversion capacity.
Source summary and thread relationship - @lowmegatron · 2026-05-20 original
OTC thyroid supplements and desiccated thyroid products have highly variable thyroid hormone content; some contain no hormones while others contain up to 25 mcg T3 or 22 mcg T4 per dose; herbal products often contain undisclosed thyroid hormones.
Source summary and thread relationship - @lowmegatron · 2026-05-20 original
Vitamin D deficiency and low thyroid hormone are associated with chronic nasal congestion; vitamin D supplementation alleviates allergic rhinitis; hypothyroidism causes nasal mucosa swelling via edema, inflammation and vascular proliferation.
Source summary and thread relationship - @lowmegatron · 2026-05-21 original
PCOS is nearly 3 times more likely in autoimmune thyroid disease (primarily Hashimoto's). Women with PCOS are about 3 times as likely to have subclinical hypothyroidism, with odds increasing when TSH ≥4 mIU/L. Ray Peat is quoted that PCOS can be produced in animals by thyroidectomy due to impaired ovarian progesterone synthesis.
Source summary and thread relationship - @lowmegatron · 2026-05-21 original
Salt, glycine, CO2, progesterone, thyroid hormone and sugar optimize energy and sleep as restorative background processes (Ray Peat quote). Progesterone restores normal sleep when disturbed without inhibiting deep sleep (unlike hypnotics). Hypothyroidism decreases stages 3-4 sleep; desiccated thyroid may increase these. Glycine 3g improves sleep quality and reduces fatigue in sleep-restricted subjects.
Source summary and thread relationship - @lowmegatron · 2026-05-21 original
Carbohydrates are necessary for optimal conversion of T4 to active T3 thyroid hormone. Decline in serum T3 during no-carbohydrate diet correlated with blood glucose and ketones. Glucose is essential for T3 conversion; carbohydrate restriction mimics fasting and lowers metabolic rate. Fruit, juice and milk are optimal carbohydrate sources. Ray Peat quote on liver regulation of thyroid function via carbohydrate.
Source summary and thread relationship - @lowmegatron · 2026-05-21 original
T3 thyroid hormone is lower in levothyroxine-treated patients than in healthy subjects at equivalent TSH levels. TSH is not the gold standard for adequate levothyroxine substitution; it reflects only pituitary thyroid hormone levels. Elevated T4:T3 ratio with levothyroxine monotherapy may downregulate T4-to-T3 conversion peripherally. Type 1 and 2 deiodinases appear more effective in pituitary than peripheral tissues.
Source summary and thread relationship - @lowmegatron · 2026-05-22 original
Sharing a Ray Peat quotation on thyroid hormone (T3) converting cholesterol into pregnenolone, progesterone, and DHEA, with embedded secondary post discussing the same mechanism and additional claims about pregnenolone anti-aging effects.
Source summary and thread relationship - @lowmegatron · 2026-05-22 original
Hypothyroidism reduces CO₂ production because mitochondrial CO₂ production depends on thyroid hormone T3. End-tidal CO₂ measurement reflects alveolar and arterial CO₂ levels. Contrary to expectations, hypothyroid patients show higher alveolar ventilation (lower end-tidal CO₂), indicating hyperventilation rather than hypoventilation. The mechanism may involve direct effects of TRH on respiratory center or local lung changes. Respiratory rate alone does not define hypo/hyperventilation; arterial CO₂ is the definitive measure.
Source summary and thread relationship - @lowmegatron · 2026-05-23 original
Untreated hypothyroidism increases anxiety risk nearly 4-fold. Mechanisms include elevated histamine, catecholamines (adrenaline and noradrenaline), cortisol, lactate, hyperventilation, and reduced CO₂ production. A case study shows severe psychiatric manifestations (delusions, hallucinations, insomnia, anxiety, disorganized speech) in a hypothyroid patient (TSH >100) that resolved within one day of levothyroxine initiation and remained absent at 6-month follow-up without psychotropic medications.
Source summary and thread relationship - @lowmegatron · 2026-05-23 original
Thyroid hormone regulates growth in children. Hypothyroid children are shorter than average; hyperthyroid children are taller. Historical and contemporary evidence shows thyroid hormone treatment improves height and intelligence in hypothyroid children. Genetic thyroid hormone resistance is associated with 6-fold increased short stature risk if untreated. Historical case series: treatment improved growth rates (e.g., 7-year-old grew 1 inch in 2 years before treatment, 1 inch in 2 months on thyroid; 5-year-old gained 1 inch in 9 weeks; 18-year-old 34-inch-tall youth gained 2 inches in 9 weeks). Modern study confirms lower height z-scores in acquired hypothyroidism; hyperthyroid children show increased height and low BMI.
Source summary and thread relationship - @lowmegatron · 2026-05-23 original
Ray Peat quote on thyroid-progesterone-estrogen relationships, combined with citations of randomized controlled trial showing progesterone increases free T4, and rat cell study demonstrating estradiol increases thyroid cell growth and blocks iodine transporter expression.
Source summary and thread relationship - @lowmegatron · 2026-05-24 original
Case report of Japanese man developing hypothyroidism from daily povidone iodine gargling, with recovery after cessation and relapse after excessive kombu (kelp) consumption. Includes detailed clinical markers and discussion of iodine-induced hypothyroidism prevalence in Japan.
Source summary and thread relationship - @lowmegatron · 2026-05-24 original
Explanation of potential thyroid hormone role in temporomandibular disorders (TMD/TMJ), citing elevated TMD prevalence in Hashimoto's thyroiditis, causal relationship from genetic methods, and T3 regulation of muscular contractile function and bone/soft tissue.
Source summary and thread relationship - @lowmegatron · 2026-05-25 original
Ray Peat quote on Broda Barnes' demonstration that hypothyroidism causes heart disease and that correcting hypothyroidism prevents both heart attacks and degenerative conditions in diabetics, combined with embedded content on T3 metabolism, CO2 production, and transcutaneous CO2 therapy outcomes in diabetic neuropathy and ulcer healing.
Source summary and thread relationship - @lowmegatron · 2026-05-25 original
Explanation of mucopolysaccharide accumulation in hypothyroidism causing tissue swelling and associated symptoms (SIBO, constipation, nasal congestion, skin swelling, puffy face, voice changes), with mechanisms of glycosaminoglycan water retention and T3 control of production/degradation. Embedded content describes myxedema in hypothyroid dogs.
Source summary and thread relationship - @lowmegatron · 2026-05-25 original
lowmegatron quotes Ray Peat saying that blood thyroid levels are a poor measure of thyroid adequacy because tissue response can be suppressed, for example by unsaturated fats. The quote says that 1930s diagnosis used clinical signs such as temperature, pulse, carotenemia, bowel function, and hair and skin quality.
Source summary and thread relationship - @lowmegatron · 2026-05-25 own thread
lowmegatron shares a link titled "Thyroid Hormone and Body Temperature" as a resource. The linked content is not supplied.
Source summary and thread relationship - @lowmegatron · 2026-05-25 original
Progesterone stabilizes mast cells by inhibiting histamine secretion, which may explain reduced inflammatory symptoms during pregnancy. Quotation cites rat peritoneal mast cell study showing progesterone inhibits histamine secretion triggered immunologically or by substance P.
Source summary and thread relationship - @lowmegatron · 2026-05-25 original
Gaseous CO₂ therapy significantly improved chronic diabetic wound healing. A randomized controlled trial applied transcutaneous CO₂ to wounds via sealed plastic bags for 45-minute sessions; 66% of treated wounds healed completely versus 0% in placebo (air-exposed) controls. Embedded post explains that CO₂ supports optimal mitochondrial function and thyroid hormone–dependent wound healing.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Topical thyroid hormone (T3) reduces scar formation in burn and skin graft wounds, producing flatter, softer, more supple scars. Animal studies in rats showed T3 modified collagen synthesis and deposition, increased hydroxyproline content in normal and grafted skin, and histology confirmed softer, more supple scar tissue with reduced hypertrophic scarring.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Thyroid hormone (T3) treats radiation burns and fibrosis, even decades after exposure. Clinical study of 75 patients with 2–30 year old radiation injuries showed approximately two-thirds with ulcers and fibrosis achieved good-to-excellent improvement on pharmacologic T3 doses. Animal studies confirmed the effect by measuring hydroxyproline (collagen proxy); T3 given before, immediately after, or weeks after irradiation prevented or reversed collagen accumulation.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Soy-based phytoestrogens can worsen subclinical hypothyroidism to clinical hypothyroidism and interfere with levothyroxine absorption in children. High-dose soy phytoestrogen (16 mg) poses 3× increased risk of progression to clinical hypothyroidism. Case reports describe hypothyroid children who became profoundly hypothyroid on soy milk despite levothyroxine treatment.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Ujjayi pranayama (slow breathing with throat constriction) practiced 15 minutes daily for 8 weeks improved thyroid hormone levels and blood pressure in adults with hypothyroidism. Free T3 increased 20%, free T4 increased 40%, TSH decreased 55% (from 8.3 to 3.7). Author attributes benefits to increased CO₂ retention and reduced stress hormones.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Author lists sixteen factors that can impair thyroid hormone response: elevated free fatty acids, low total cholesterol, levothyroxine monotherapy, inappropriate T3 dosing, empty-stomach T3 administration, wrong T4:T3 ratio, TSH-only dosing, micronutrient insufficiencies (sodium, magnesium, calcium, retinol, zinc, selenium, vitamin D), high polyunsaturated fat intake, estrogen dominance, protein imbalance, and iron/iodine imbalance. Embedded post emphasizes carbohydrate's role in hepatic T3 production.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Hypothyroidism is an overlooked cause of hiatal hernia. Reduced thyroid hormone and elevated stress hormones (cortisol in relation to testosterone and DHEA) weaken connective tissues. Research shows hypothyroidism is an early sign of hiatal hernia and gastroesophageal reflux disease (GERD), associated with gastrointestinal motor-evacuatory disturbances rather than acid exposure. Severe hypothyroidism causes esophageal peristalsis disturbances, myxedema-related oropharyngeal dysphagia, and hiatal hernia.
Source summary and thread relationship - @lowmegatron · 2026-05-26 original
Thyroid hormone T3 can reverse learned helplessness, a state of giving up in response to uncontrollable stress, by counteracting the downregulation of thyroid hormone caused by chronic stress.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
Hypothyroidism and low thyroid hormone activity cause ADHD. Research shows higher TSH within normal range correlates with ADHD symptoms in preschoolers; thyroid hormone resistance increases ADHD risk by 60%; T3 improves ADHD specifically in children with thyroid hormone resistance but may be detrimental in those without resistance.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
To correct elevated reverse T3 relative to T3: lower cortisol/glucagon; if taking thyroid hormones, increase T3:T4 ratio, spread doses, and take with food.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
Hypothyroidism causes Raynaud's phenomenon by elevating catecholamines (adrenaline and noradrenaline) that reduce blood flow. Treating hypothyroidism with levothyroxine reverses Raynaud's symptoms and resolves the underlying mechanism.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
Hypothyroid individuals have low CO2 production and are susceptible to stress-induced hyperventilation, leading to elevated ammonia and lactate, and risk of depression and mania. Symptoms of relative hyperventilation (reduced CO2) include respiratory, cardiovascular, neurological and muscular manifestations.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
T3 active thyroid hormone combined with magnesium is a reliable treatment for insomnia, cramps, and anxiety, whether caused by fatigue, aging, or alcohol withdrawal.
Source summary and thread relationship - @lowmegatron · 2026-05-27 original
ADHD and hypothyroidism share mechanisms of decreased oxidative metabolism, lowered ATP and CO2 in the brain. Increasing CO2 may improve ADHD as demonstrated in rodent experiments and case reports. Acetazolamide, which increases CO2 by inhibiting carbonic anhydrase, improved ADHD symptoms in a case report and reduced ADHD-linked behaviors in mice; T3 increases oxidative metabolism and CO2 production.
Source summary and thread relationship - @lowmegatron · 2026-05-27 own thread
lowmegatron quotes Ray Peat on impaired brain oxygen metabolism and attention deficit, with coffee improving focus. He says type 2 diabetes and epilepsy are linked to 2-5 times higher ADHD diagnosis. He adds a disclaimer that this is an explainer on thyroid hormone and CO2 in ADHD, not a prescription to take acetazolamide, and advises checking contraindications and speaking with a doctor. He lists three references: a case report, a rat study and a rat hypothyroidism study.
Source summary and thread relationship - @lowmegatron · 2026-05-28 original
Author describes case of 9-year-old with hypothyroidism, retained baby teeth, and delayed bone age; tooth eruption normalized one year after levothyroxine treatment. Embedded quote from lowmegatron lists comprehensive oral manifestations of hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-05-28 original
Author explains swelling during levothyroxine therapy is likely hypersensitivity to excipients rather than hormone itself; describes successful desensitization protocol starting at 0.01 mcg and doubling every 30 minutes, with case outcome and mechanism explanation.
Source summary and thread relationship - @lowmegatron · 2026-05-29 original
Post argues that TSH, T4, and T3 blood tests cannot measure end-organ thyroid hormone response in cells, and advocates assessing basal temperature, pulse behavior, and symptom response to thyroid hormones as more relevant measures. Quotes Ray Peat and cites historical pre-1945 diagnostic methods.
Source summary and thread relationship - @lowmegatron · 2026-05-29 own thread
lowmegatron shares two links, "I think I'm hypothyroid" and "Thyroid Hormone and Body Temperature", as resources. The linked content is not supplied.
Source summary and thread relationship - @lowmegatron · 2026-05-29 original
lowmegatron states that hair sheds in hypothyroidism and regrows with effective treatment. He says T3 affects hair growth and coloring, citing dose-dependent hair growth in treated rodents, in vitro shaft growth, earlier anagen entry in mice, and possible repigmentation of gray hair in humans.
Source summary and thread relationship - @lowmegatron · 2026-05-29 original
Post explains that local CO2 production under skin is influenced by thyroid hormone T3, and presents carboxytherapy (small CO2 injections) as an effective treatment for dark circles under eyes, citing a study showing physician and patient satisfaction scores.
Source summary and thread relationship - @lowmegatron · 2026-06-01 original
Practical tips for lowering prolactin and serotonin through thyroid optimization, nutrient status, dietary fat composition, light exposure, supplements, and specific compounds; includes embedded quote on cyproheptadine mechanism for SSRI sexual dysfunction.
Source summary and thread relationship - @lowmegatron · 2026-06-01 original
Explanation of reverse T3 elevation as stress marker; cortisol and other counterregulatory hormones shift T4 conversion toward rT3 while raising free fatty acids that impair thyroid function; lists interventions to lower cortisol and suggests T3:T4 ratio optimization in levothyroxine users.
Source summary and thread relationship - @lowmegatron · 2026-06-01 original
Attribution of quoted advice from Ray Peat on raising male libido by lowering serotonin through anti-inflammatory diet, reduced aerobic exercise, thyroid optimization, and specific nutrients; embedded post explains mechanisms of serotonin suppression of sexual function via dopamine and prolactin pathways.
Source summary and thread relationship - @lowmegatron · 2026-06-01 original
Historical finding from 1960s that hypothyroidism destroys sleep quality and architecture, with treatment via desiccated thyroid restoring restorative sleep stages; suggests T3+T4 combination will have similar effect.
Source summary and thread relationship - @lowmegatron · 2026-06-02 original
Explanation of how lower thyroid hormone conversion (lower T3/T4 ratio) contributes to insulin resistance despite normal lab values; cites studies linking low T3/T4 to hyperinsulinemia and prediabetes; details multiple cellular mechanisms by which hypothyroidism impairs insulin action.
Source summary and thread relationship - @lowmegatron · 2026-06-02 original
Ray Peat quote on cortisone/cortisol damaging pancreas and chronic stress from low blood sugar in diabetes; embedded post by lowmegatron synthesizes cortisol studies linking elevated cortisol to blood glucose, glucocorticoid receptor blocking effects, and dietary/lifestyle factors affecting cortisol and glucose metabolism.
Source summary and thread relationship - @lowmegatron · 2026-06-02 original
Low-fat, high-carbohydrate ad libitum diets produce weight loss and fat loss in multiple studies; embedded post from lowmegatron explains carbohydrates are needed for thyroid hormone T3 conversion with Ray Peat quote on metabolic regulation by glucose.
Source summary and thread relationship - @lowmegatron · 2026-06-03 original
Ray Peat quote on thyroid hormones' role in regulating pregnenolone production through cholesterol metabolism, influenced by protein, vitamin A, and T3 availability. Author clarifies 'thyroid' means T3 and T4 with optimal T4-to-T3 conversion.
Source summary and thread relationship - @lowmegatron · 2026-06-04 original
Ray Peat quote on carbon dioxide's anti-inflammatory effects. Embedded post by lowmegatron describes CO2 therapy for chronic diabetic wounds, linking wound healing impairment to hypothyroidism and mitochondrial CO2 production.
Source summary and thread relationship - @lowmegatron · 2026-06-04 original
Brief affirmative response to quoted claim about low thyroid function and stimulation-seeking behavior.
Source summary and thread relationship - @lowmegatron · 2026-06-04 original
Author summarizes research on voice changes in thyroid disorders: hypothyroidism causes lower, rougher, hoarse voice due to vocal cord edema; hyperthyroidism causes voice instability and reduced stamina. Study used acoustic analysis and GRBAS perceptual rating.
Source summary and thread relationship - @lowmegatron · 2026-06-04 original
Ray Peat explains how serotonin and histamine excess from hypothyroidism and parasympathetic overactivity causes intestinal contraction and diarrhea. Author notes serotonin blockers (ondansetron, ginger, lysine, cyproheptadine) and DAO supplementation are effective treatments.
Source summary and thread relationship - @lowmegatron · 2026-06-04 own thread
lowmegatron says he has a video course and community covering all aspects of hypothyroidism and low thyroid hormone, and includes a link.
Source summary and thread relationship - @lowmegatron · 2026-06-05 original
Author presents rat and mouse experiments showing hypothyroidism causes anosmia (loss of smell); describes test methods and reversal of smell loss with thyroid hormone treatment. Cites human studies showing ~40% of hypothyroid patients have olfactory issues, largely reversible with thyroid hormone therapy. Notes levothyroxine-only may not provide full recovery due to T3 conversion requirement. Embedded quote describes PEA and luteolin combined with olfactory training for post-COVID smell recovery.
Source summary and thread relationship - @lowmegatron · 2026-06-05 original
Author describes research on CO₂-enriched air device for sleep improvement; explains mechanism via Bohr effect. Reports improved sleep latency (-29%), increased total sleep time (+29 min), reduced WASO (-13.17%), improved sleep efficiency (+5.48%), no harmful oxygen desaturation. Contextualizes elevated CO₂ levels (15,000-25,000 ppm) and discusses relationship to thyroid hormone T3 and mitochondrial CO₂ production. Warns against inhaling pure CO₂; recommends Buteyko breathing or bag breathing as alternatives. Embedded quote attributes Ray Peat statement about thyroid hormone, magnesium and sleep.
Source summary and thread relationship - @lowmegatron · 2026-06-05 original
Author argues over-exercise lowers active thyroid hormone T3 and TSH (via cortisol elevation), potentially misleading those monitoring TSH. Notes stress also lowers T3 and TSH. Cites study showing exhaustive exercise decreases free T3 by 24 hours into recovery with inverse cortisol relationship. Suggests increasing carbohydrates, calories, or creatine; recommends generative over degenerative exercise.
Source summary and thread relationship - @lowmegatron · 2026-06-05 original
Author cites Broda Barnes observation that hypothyroid patients suffer chronic recurrent infections; describes rabbit experiments showing hypothyroidism causes repeated infections and death from pneumonia. Notes rodent experiments showing hypothyroidism degenerates thymus gland (immune training organ), partly via elevated cortisol. Clarifies that issue is with T3 levels in untreated/undertreated patients, not the diagnosis itself. Embedded quote attributes Ray Peat statement on thymic atrophy mechanisms and involution.
Source summary and thread relationship - @lowmegatron · 2026-06-05 original
Author quotes Ray Peat statement on thyroid hormone's necessity for cellular respiration and all biological functions; lists symptoms of inadequate thyroid: sluggishness, clumsiness, cold intolerance, anemia, infections, heart disease, headaches, cancer risk, premature aging, and tissue dysfunction. Embedded quote describes water retention and myxedema mechanism in hypothyroidism, including dermal glycosaminoglycan accumulation and downstream effects on digestion, joints, nasal passages, and vocal cords; includes before/after photos of hypothyroid patient.
Source summary and thread relationship - @lowmegatron · 2026-06-06 original
Author states body temperature indicates thyroid hormone status. Embedded quote is link-only post with no visible substantive content.
Source summary and thread relationship - @lowmegatron · 2026-06-06 original
Sharing a post about selenium's role in thyroid hormone conversion and autoimmune thyroid conditions; notes Brazil nut supplementation study in hemodialysis patients showing thyroid hormone improvement, with caution about excess selenium.
Source summary and thread relationship - @lowmegatron · 2026-06-08 original
Sharing post about taste and smell dysfunction in hypothyroid patients and animal studies of anosmia; notes impaired recovery with levothyroxine-only therapy and suggests T3 conversion may be relevant.
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Fruit juice and frequent carbohydrate meals treat early-morning hypoglycemic headaches, particularly in hypothyroidism. Hypoglycemia increases free fatty acids and inflammatory mediators (prostaglandins, serotonin, CGRP) that trigger migraine. Dark grape juice is recommended over poor-quality orange juice.
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Oxidative stress is increased in hypothyroidism. Vitamin E, C, and taurine reduce oxidative stress markers and protect thyroid from fluoride-induced damage. In rodents, taurine supplementation reduced MDA (lipid peroxidation marker) elevated by hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Thyroid hormone reduces fibrosis (excessive connective tissue accumulation) across multiple chronic diseases including liver cirrhosis, kidney disease, erectile dysfunction, pancreatitis, Crohn's strictures, lung scarring, heart failure, and keloids. Animal studies show T3 and thyroid hormones reverse bleomycin-induced skin and CCl4-induced liver fibrosis. Low thyroid function associated with increased fibrotic disease risk in humans.
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Low thyroid hormone (T3) combined with stress leads to gastric ulcers. Thyroid hormones (T3 and T4) reduce stress-induced gastric ulcers in animals. Ray Peat called thyroid hormone a fundamental anti-stress substance. Gastric ulcers are one of Hans Selye's stress triad (also: shrunken immune tissue, adrenal hypertrophy). Low T3 Sick Syndrome associated with acute upper GI bleeding in ICU patients.
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Iodine balance is critical in hypothyroidism; excessive iodine can cause or worsen thyroid dysfunction. Studies show iodine restriction normalizes TSH and increases free T4 in subclinical hypothyroidism. High intake defined as >1000 μg/day or urine iodine exceeding reference range (8.6–41.3 μmol/g creatinine). Antioxidants (selenium, vitamin C, E) reduce oxidative stress from excess iodine but do not eliminate risk. Some individuals tolerate high-iodine protocols; others develop hypothyroidism or hyperthyroidism rapidly (Wolff-Chaikoff effect, Jod-Basedow phenomenon).
Source summary and thread relationship - @lowmegatron · 2026-06-09 original
Ray Peat statement that short-term thyroid supplementation in a small percentage of hypothyroid patients can stimulate recovery of normal thyroid function by activating the brain-pituitary system, raising blood sugar to increase hepatic T3 production, and lowering anti-thyroid stress hormones.
Source summary and thread relationship - @lowmegatron · 2026-06-10 original
Ray Peat quoted on thyroid deficiency causing digestive issues including gas; embedded case study of woman with SIBO resolved by T3 therapy after years of failed treatments, with explanation of hypothyroidism mechanisms in SIBO pathogenesis.
Source summary and thread relationship - @lowmegatron · 2026-06-10 original
Author argues against T3-lowering diets for weight loss, citing associations between elevated cortisol and reduced T3 in cardiovascular disease patients. References Broda Barnes' 1970s research showing 94% reduction in heart disease with natural desiccated thyroid treatment; embedded quote on hypothyroidism increasing blood pressure.
Source summary and thread relationship - @lowmegatron · 2026-06-10 original
Extended Ray Peat quotation on T3 deficiency causing sleep problems, especially at menopause, with explanation of paradoxical T3 effects in high-stress/adrenergic states. Notes T3 as prescription medication available in liothyronine and natural desiccated thyroid forms; embedded post on light therapy for Hashimoto's symptoms.
Source summary and thread relationship - @lowmegatron · 2026-06-10 original
lowmegatron says two very different men look like twins in their hypothyroid form, and that hair loss and edema point to a clear hypothyroid phenotype.
Source summary and thread relationship - @lowmegatron · 2026-06-11 original
Ray Peat quotation on thyroid hormone as fundamental anti-stress substance. Embedded post explains low T3 plus stress causes gastric ulcers; thyroid hormones reduce stress-induced ulceration. Cites Hans Selye's stress triad (ulcers, immune tissue shrinkage, adrenal hypertrophy) and Low T3 Sick Syndrome in ICU patients.
Source summary and thread relationship - @lowmegatron · 2026-06-11 original
Hypothyroid patients have four-fold increased fall risk due to impaired balance and stability from sensory/neural dysfunction rather than mechanical problems, detectable via balance platform testing.
Source summary and thread relationship - @lowmegatron · 2026-06-11 original
Correcting hypothyroidism with levothyroxine improves insulin sensitivity; author suggests NDT or combination therapy may provide further improvement.
Source summary and thread relationship - @lowmegatron · 2026-06-11 original
Low thyroid hormone T3 leads to accumulation of mucopolysaccharides in connective tissue, causing water retention and non-pitting swelling (myxedema).
Source summary and thread relationship - @lowmegatron · 2026-06-11 original
Severe hypothyroidism can cause bilateral ptosis (drooping eyelids) that responds dramatically to thyroxine replacement therapy.
Source summary and thread relationship - @lowmegatron · 2026-06-12 original
Case report of heat intolerance and agitation in hypothyroid patient treated with levothyroxine; Ray Peat discusses mechanisms including nitric oxide vasodilation and metabolic temperature monitoring.
Source summary and thread relationship - @lowmegatron · 2026-06-12 original
Taurine protects thyroid function against fluoride, lead, and organophosphate exposure; fluoride lowers thyroid hormone release, lead and insecticides inhibit T3 conversion; human equivalent dose 1-2g/day based on animal research.
Source summary and thread relationship - @lowmegatron · 2026-06-15 original
Ray Peat quote on depression as low brain energy state linked to low thyroid hormone, recommending thyroid T3 and supportive diet of vitamin D and adequate calcium to lower stress hormones and raise brain energy.
Source summary and thread relationship - @lowmegatron · 2026-06-16 original
Nickel-reactive patients (SNAS) show twofold increased prevalence of Hashimoto's thyroiditis compared to non-reactive patients. Nickel may increase thyroid antigenicity and promote autoimmune response in susceptible individuals.
Source summary and thread relationship - @lowmegatron · 2026-06-16 original
Amalgam filling removal reduces thyroid antibodies (anti-TPO and anti-TG) in mercury-reactive patients. 70% reported substantial improvement, 21% some improvement. Lymphocyte proliferation reduction is the proposed mechanism.
Source summary and thread relationship - @lowmegatron · 2026-06-16 original
Link to article on thyroid hormone boosting tips.
Source summary and thread relationship - @lowmegatron · 2026-06-16 own thread
lowmegatron says iodine is needed for thyroid hormone synthesis and deficiency can cause low thyroid levels. He says high doses can cause hypothyroidism, hyperthyroidism or autoimmunity in susceptible people, names low selenium and genetics as risk factors, cites a 150 mcg RDA and a risk above 300 mcg daily, and lists seafood and dairy as sources.
Source summary and thread relationship - @lowmegatron · 2026-06-16 own thread
lowmegatron argues thyroid function adjusts to energy availability, so undereating or overexertion can reduce thyroid hormone production, conversion or tissue response and lower metabolic rate. He warns against combining fasting with intense exercise and suggests mild caloric restriction balanced with adequate intake.
Source summary and thread relationship - @lowmegatron · 2026-06-16 own thread
lowmegatron says goitrogens can interfere with thyroid hormone levels before a goiter appears, names cruciferous vegetables and soy as main offenders, says cooking reduces them, and says iodine insufficiency worsens their effect.
Source summary and thread relationship - @lowmegatron · 2026-06-16 own thread
lowmegatron claims polyunsaturated fats from seed oils and high-PUFA-fed non-ruminant animals disrupt thyroid hormone production, transport and binding, and that stress releases them as free fatty acids. He recommends mostly saturated fats (coconut oil, butter, tallow and similar) and lists many PUFA oils including fish oil to avoid.
Source summary and thread relationship - @lowmegatron · 2026-06-16 own thread
lowmegatron says phthalates and BPA/S/F impair thyroid gland function and peripheral hormone conversion, and that BPA blocks thyroid hormone at the receptor. He lists sources such as fragranced cosmetics, plastic containers and bottles, can linings, dust and receipts. The quoted parent reports a rat study where BPA altered T3, T4 and TSH and ginger gave partial protection.
Source summary and thread relationship - @lowmegatron · 2026-06-16 original
Vitamin E protects thyroid by inhibiting oxidative stress and lipid peroxidation. Higher intake associated with lower subclinical hypothyroidism and thyroiditis risk in men; higher vitamin E status associated with lower TSH and higher T4 in Hashimoto's women.
Source summary and thread relationship - @lowmegatron · 2026-06-16 original
Ray Peat on hypothyroidism consequences: inadequate thyroid hormone causes sluggishness, clumsiness, cold intolerance, anemia, infections, heart disease, headaches, cancer, and premature aging. Broda Barnes research showed hypothyroid rabbits experienced recurrent infections and early death.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
Extended Ray Peat quotation on caffeine's parallels to thyroid and progesterone, with embedded post by lowmegatron citing coffee's antidepressant and gut-protective effects via tight junction proteins and reduced intestinal permeability.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
Low magnesium is associated with increased Hashimoto's and hypothyroidism risk; author explains magnesium's role in thyroid hormone conversion and recommends up to 600mg daily split doses, preferring dietary sources.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
Author shows before/after of thyroid replacement treatment over 3 weeks and explains mechanism: T3 drives mucopolysaccharide breakdown; low T3 causes accumulation and water retention leading to myxedema swelling.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
Thiamine deficiency impairs thyroid hormone effectiveness; author cites studies showing thyroid causes anxiety and tachycardia in thiamine-deficient patients but tolerates better with prior thiamine repletion; recommends starting at 0.3mg and increasing to up to 19mg daily.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
Before/after eyelashes in hypothyroidism treatment; cites case literature linking ciliary madarosis (eyelash loss) to thyroid dysfunction, predominantly hypothyroidism in women; embedded post explains T3's dose-dependent effects on hair growth and repigmentation.
Source summary and thread relationship - @lowmegatron · 2026-06-17 own thread
lowmegatron promotes his video course and community covering 'all aspects of hypothyroidism and low thyroid hormone', with a link.
Source summary and thread relationship - @lowmegatron · 2026-06-17 original
American skullcap (Scutellaria lateriflora) 400mg daily improves sleep quality, onset latency, efficiency, total sleep time, and morning refreshedness in 66 participants with primary insomnia over 56 days; embedded post by Ray Peat on T3, hypothyroidism and sleep.
Source summary and thread relationship - @lowmegatron · 2026-06-18 original
Explanation of how progesterone and estrogen affect thyroid hormone conversion, specifically D2 enzyme activity and T4-to-T3 conversion; cites research in ovariectomized rats and hypothesizes progesterone withdrawal during menopause as mechanism.
Source summary and thread relationship - @lowmegatron · 2026-06-18 original
Ray Peat quotation on magnesium retention, thyroid hormone requirement for cellular magnesium absorption, and clinical observations of magnesium infusion and thyroid interaction; includes embedded repost of lowmegatron on magnesium-thyroid associations with cited epidemiological study and mechanistic claims.
Source summary and thread relationship - @lowmegatron · 2026-06-18 original
Report of thiamine supplementation improving memory and learning in hypothyroid animals; includes embedded repost of lowmegatron on thiamine deficiency as reason for poor thyroid hormone response, with historical clinical observations on interaction.
Source summary and thread relationship - @lowmegatron · 2026-06-18 original
Comprehensive explanation of PFAS (perfluoroalkyl substances) interference with thyroid function and metabolic rate, with evidence from weight-loss trials and animal studies; includes exposure sources and reduction strategies.
Source summary and thread relationship - @lowmegatron · 2026-06-18 original
Ray Peat letter to editor on vitamin A toxicity myths and proposed mechanism via temporary thyroid suppression from unsaturated oils; claims historical rumors of vitamin A blindness were unsubstantiated and vitamin E protective role.
Source summary and thread relationship - @lowmegatron · 2026-06-18 own thread
lowmegatron offers his video course and community for people wanting help understanding hypothyroidism and what to do about it, with a link.
Source summary and thread relationship - @1immortals1 · 2026-06-19 original
Red light and near-infrared light (630-850nm) penetrates skin and increases ATP production via cytochrome c oxidase in mitochondria. Lists multiple claimed health benefits including wound healing, pain reduction, testosterone increase, skin improvements, muscle recovery, and thyroid function. Contrasts low-cost bulb options with expensive commercial panels.
Source summary and thread relationship - @lowmegatron · 2026-06-19 original
Hypothyroidism identified as cause of burning mouth syndrome with potential resolution via thyroid hormones within months. Cites systematic reviews and case reports showing 64% of hypothyroid patients with positive response to thyroid hormone treatment. Case example shows pain reduction from VAS 8 to 5 in one month, complete resolution in six months with levothyroxine. Embedded post lists multiple oral manifestations of hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-06-20 original
Author reports personal experience with appendicitis treatment where ciprofloxacin (a fluoroquinolone) was initially recommended but declined due to mitochondrial toxicity concerns. Requested alternative antibiotics which worked successfully. Embedded post details fluoroquinolone mechanism: mitochondrial toxicity via mtDNA disruption, lipophilicity, NMDA agonism, GABA-A antagonism, fluoride-induced ATP impairment, mineral binding, and effects on potassium channels, collagen, and biofilm penetration.
Source summary and thread relationship - @lowmegatron · 2026-06-20 original
Quoted testimonial: T3 thyroid hormone reversed calcification, myxedema, and water weight (50 pounds), normalized body temperature from 96.4 to 98.6°F, cleared 30-year psoriasis, restored ovulation, resolved severe PMDD and emotional symptoms, improved cholesterol and Raynaud's in spouse who also discontinued 25-year ADHD medication. Embedded source post links hypothyroidism to 4.5x increased mast cells and 50% increased histamine.
Source summary and thread relationship - @lowmegatron · 2026-06-20 original
Hypothyroidism can cause lactose intolerance via bacterial overgrowth in small intestine, which damages lining and causes loss of lactase enzymes (Ray Peat quote). Embedded post explains lactose maldigestion vs intolerance: lactase enzyme increases with lactose consumption over time; African-American adolescent study showed adaptation over 21 days with improved lactose digestion and reduced symptoms. Other causes of dairy intolerance include irritating additives and A1 casein sensitivity.
Source summary and thread relationship - @lowmegatron · 2026-06-21 original
Gaseous CO₂ significantly improved healing of chronic wounds in diabetic patients. Quoted study result: 66% of wounds healed completely with CO₂ therapy vs 0% in placebo air-exposed control group. Procedure involved sealing wounded area in plastic bag, removing air, pumping pure CO₂ gas for 45 minutes per session. Embedded post explains CO₂ is mitochondrial byproduct with tissue perfusion health benefits; optimal thyroid hormone T3-driven glucose oxidation required for CO₂ production; hypothyroidism and diabetes both impair wound healing through disrupted angiogenesis.
Source summary and thread relationship - @lowmegatron · 2026-06-21 original
Author reports case of woman with TSH 7 and melasma treated with levothyroxine, achieving 80% hyperpigmentation reduction and TSH normalization to 0.78; includes embedded quoted post about eyelash loss association with hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-06-21 original
Author reports new research showing near-infrared light reduces anxiety, depression, fatigue, pain and sleep problems in Hashimoto's hypothyroidism patients within 3 weeks, despite continued levothyroxine therapy.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron describes a randomized sham-controlled study of Hashimoto's patients, 33 per group, where the control group's laser device was not turned on, only its display. It follows the parent's claim about near-infrared light for Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron gives trial details: two treatment sessions per week for 3 weeks. Three participants were lost from each group because they stopped treatment or changed medication dose, and one was listed as "lost to follow-up." The remaining 60 had their before-and-after questionnaires analyzed.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron reports that pain at rest, during activity, and at night decreased significantly in the treatment group, with relatively small decreases in the sham group. Overall fatigue fell from 7.7 to 2.9 in the treatment group and from 7.3 to 5.9 in sham.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron reports FIS (fatigue impact on daily life, lower is better) fell from 69.8 to 30.0 in the active group (39.8 points), with a 5-point drop in sham.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron reports FSS (physical fatigue severity, lower is better) fell from 42.5 to 29.4 (13.1 points) in the active group and from 40.4 to 37.6 (2.9 points) in sham.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron claims past studies show this treatment can reverse the autoimmune/inflammatory processes behind Hashimoto's, and that since these are not confined to the thyroid they may play a significant role in symptom reduction. The quoted post cites earlier light-therapy Hashimoto's results (PMID 22718472) with reductions in T4 need and TPOAb.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron asserts that low tissue levels of active T3 cause all these symptoms, that tissue T3 is not testable, and that single thyroid blood tests tell us nothing about it.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron notes the patients were all taking levothyroxine and claims levothyroxine-only therapy is unlikely to fully replenish tissue T3, which he offers as why hypothyroid symptoms often persist.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron claims that after autoimmunity is reversed the thyroid can release more hormone including active T3, citing "prior human studies" that found T3 up to 57% higher, and calls this likely the biggest factor in symptom improvement. The quoted post describes a Brazilian study (PMID 23316383) on thyroid vascularization with 830 nm light at 50 mW.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron points readers to an earlier thread on this light treatment's effects on antibodies, thyroid hormones and thyroid structure in Hashimoto's. The quoted thread claims light is the most effective Hashimoto's treatment, with lower TSH, weight and antibodies, and that 47% no longer needed thyroid meds.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron relays a GembaRed representative's estimate that about 20 seconds per side of the thyroid with its handheld LED panel, used in contact with the skin, may equal the study dose. He notes the study laser costs about $3k used.
Source summary and thread relationship - @lowmegatron · 2026-06-21 own thread
lowmegatron quotes Redlightman's Joe on approximating the study dose with the Mini 830. Joe argues the device is about 100x more powerful than the study laser, so a 2-second session would match it, though he recommends 5–8 minute sessions.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
Author reports higher TSH within normal range associated with coronary heart disease mortality in women and cites Broda Barnes' 1970s research showing 94% reduction in heart disease with natural desiccated thyroid; includes embedded quoted post about cortisol-T3 relationships in cardiovascular disease.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
Oxidized LDL (oxLDL) drives atherosclerosis through endothelial dysfunction and foam cell formation. Thyroid dysfunction—both hypo- and hyperthyroidism—elevates oxLDL by increasing lipid peroxidation, particularly of linoleic acid from seed oils. Multiple cited studies document enhanced LDL oxidizability in both thyroid states and its role in cardiac disease.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
Minimal text; appears to repost or quote another user's question about hypothyroidism change within one year, with media attachment not transcribed.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
lowmegatron says thyroid hormones affect hair growth and pigmentation, and that hair follicles can convert T4 to T3. It cites a human follicle study finding functional thyroid hormone receptors, and shows photos of severe hypothyroidism and recovery.
Source summary and thread relationship - @lowmegatron · 2026-06-22 own thread
lowmegatron defines Hertoghe's or Queen Anne's sign as thinning or loss of the outer third of the eyebrows, often caused by hypothyroidism. He also promotes his video course and online community.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
Higher 'normal' TSH levels increase miscarriage risk in early pregnancy. TSH between 2.5–4.8 mIU/L increases miscarriage risk; TSH >4.8 increases risk further. Author attributes mechanism to elevated estrogen in hypothyroidism preventing embryo implantation or causing miscarriage; adequate thyroid hormone normalizes antifertility factors.
Source summary and thread relationship - @lowmegatron · 2026-06-22 original
Ray Peat quoted on TSH's direct cellular actions beyond the thyroid (edema, fibrosis, mastocytosis) and argues that very low TSH lacks demonstrated harm. References pituitary-deficient animals with extended longevity despite lacking TSH, prolactin, and growth hormone.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
A 1.8°F drop in body temperature correlates with ~12 lbs of fat gained yearly; thyroid hormone regulates basal body temperature and metabolic rate. The post cites a thermogenic handicap of 100-130 kcal/day from 1°C temperature reduction and discusses Broda Barnes' basal temperature test as an indicator of thyroid status.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
Thyroid hormone regulates energetic metabolism and can increase or decrease energy expenditure by up to 50%. The post cites research showing severe hypothyroidism reduces total body energy expenditure ~50% while hyperthyroidism increases it ~50%, demonstrating threefold induction between extremes.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
lowmegatron says levothyroxine raised resting energy expenditure in hypothyroid dogs by about 24% on average. It also reports weight loss in most obese dogs, improved lethargy, and improvement of dermatologic signs including dry coat and alopecia.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
Analysis of resting energy expenditure (REE) in thyroid cancer patients across five time points: normal thyroid, post-thyroid removal (hypothyroid at 3 weeks), after levothyroxine monotherapy, after dose increase, and 12 months follow-up. Shows 24% REE swing. Compares levothyroxine monotherapy to NDT and liothyronine (T3) replacement, noting weight loss differences and conversion efficiency implications.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
lowmegatron says grey hair is caused by stress-related noradrenaline and is reversible, citing a human hair greying study. He links the mechanism to fasting-related hair loss and suggests thyroid deficiency raises norepinephrine through sympathetic compensation; that last link is his own interpretation.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
Hypothyroidism decreases metabolic burn rate; the net effect on caloric balance is equivalent regardless of mechanism. Historical respiration calorimeter studies from the 1920s demonstrated up to 40% decrease in basal metabolic rate in hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-06-23 original
lowmegatron says hypothyroidism can affect hair and nails mildly or severely, and that the cause is often ignored when TSH is 'normal'. The quoted case describes Hashimoto's hypothyroidism with a TSH of 30, where the nail and hair changes resolved after five years of levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-06-24 original
Author consumes mandarins due to lack of good orange juice; mentions using palm color to estimate thyroid hormone status. Quotes photobiogenesis on orange juice blocking endotoxin absorption.
Source summary and thread relationship - @lowmegatron · 2026-06-24 original
Explains resting energy expenditure (REE) and its dominance in total energy expenditure; shares embedded study showing 24% REE variation with thyroid status in thyroid cancer patients, comparing levothyroxine monotherapy vs. NDT and T3 combinations.
Source summary and thread relationship - @lowmegatron · 2026-06-24 original
lowmegatron says thyroid hormone restores hair growth. He quotes a study in which thyroid deficiency raised the percentage of telogen hairs and replacement restored normal telogen-anagen ratios, and he notes that the replacement was NDT rather than levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-06-24 original
Links restless leg syndrome to thyroid dysfunction; reports 5-fold higher odds of subclinical hypothyroidism in RLS patients and describes improvement with thyroid hormone treatment in Hashimoto's cases.
Source summary and thread relationship - @lowmegatron · 2026-06-24 original
lowmegatron says hypothyroidism doubles noradrenaline, which he links to greying and hair loss. He cites a case in which greying reversed after IV levothyroxine, rodent T3 results, a human greying study and fasting-related follicle research, and says greying must be caught early to reverse.
Source summary and thread relationship - @lowmegatron · 2026-06-25 original
lowmegatron quotes Ray Peat on graying hair. Peat says he has seen DHEA correct it quickly, that melanin-producing enzymes need copper, and that shellfish is a good source of copper with less iron. The quote also recommends low DHEA doses and warns that excess DHEA may convert to estrogen or testosterone in people deficient in progesterone, pregnenolone or thyroid.
Source summary and thread relationship - @lowmegatron · 2026-06-25 original
High-dose thiamine improves fatigue across multiple conditions including hypothyroidism, Parkinson's, multiple sclerosis, and inflammatory bowel disease; dosing recommendations provided; embedded quote on thiamine deficiency interaction with thyroid hormone efficacy.
Source summary and thread relationship - @lowmegatron · 2026-06-26 original
Quote attributed to Ray Peat regarding learned helplessness in rats based on seeing another rat escape. Embedded quote discusses CIA MKultra program, Martin Seligman's learned helplessness research, Curt Richter's rat studies, and T3 thyroid hormone as a reversal agent for learned helplessness with anecdotal recovery account.
Source summary and thread relationship - @lowmegatron · 2026-06-26 original
Testosterone replacement therapy lowers thyroid antibodies (TPOAb and TgAb) and raises thyroid secretory capacity in men with low testosterone and Hashimoto's thyroiditis. TPOAb decreased 31%, TgAb decreased 23%. This is the first study demonstrating a protective effect of exogenous testosterone on thyroid autoimmunity.
Source summary and thread relationship - @lowmegatron · 2026-06-26 original
Brain cortex and frontal lobes are most sensitive to energy adequacy or deprivation. T3 thyroid hormone augmentation of SSRIs produces antidepressant effects correlated with normalization of brain bioenergetic metabolism in treatment responders.
Source summary and thread relationship - @lowmegatron · 2026-06-26 original
Tocotrienols (vitamin E variant, not thyroid hormone) suppress mast cell degranulation and reduce histamine release in mice through suppression of protein kinase C (PKC) activity, reducing allergic dermatitis. Embedded quote discusses idiopathic urticaria, thyroid hormone supplementation effects on thyroid antibodies and allergies.
Source summary and thread relationship - @lowmegatron · 2026-06-27 original
Author describes personal experience with hypothyroidism causing fear-based worldview; shares Ray Peat quote about progesterone and thyroid hormones breaking fear.
Source summary and thread relationship - @1immortals1 · 2026-06-27 original
Substantive explanation of iodine deficiency's return in developed world despite historical salt iodization; identifies specific causes (shift to non-iodized premium salts, bromine replacing iodine in bread, perchlorate contamination) and resulting subclinical hypothyroidism symptoms; claims iodine supports metabolism, cancer prevention, and brain development.
Source summary and thread relationship - @lowmegatron · 2026-06-28 original
Brief educational note on Hertoghe's or Queen Anne's sign (outer third eyebrow thinning/loss) as physical indicator associated with hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-06-28 original
Shared Ray Peat quote dismissing iodine skin test as unscientific due to reduction by vitamin C and other compounds; embedded post describes case of iodine-induced hypothyroidism from povidone iodine gargling and subsequent relapse from excess kombu/kelp intake, with detailed clinical markers showing recovery.
Source summary and thread relationship - @lowmegatron · 2026-06-29 original
User shares embedded anecdote from KamilBaszczyk1 about resolving hypothyroid symptoms by reducing iodine intake from supplements and salt after consulting a GPT chatbot about diet analysis.
Source summary and thread relationship - @lowmegatron · 2026-06-29 original
Author shares Ray Peat quote on thyroid hormone brain concentration and T3:T4 ratios, then embedded quote from lowmegatron on T3-depression link with multiple reference citations.
Source summary and thread relationship - @lowmegatron · 2026-06-29 original
Author presents Ray Peat quotes and citations on estrogen's adverse cardiovascular effects in men, including discussion of the Coronary Drug Project trial and elevated serum estradiol in men with heart disease.
Source summary and thread relationship - @lowmegatron · 2026-06-29 original
Author presents Ray Peat quote on hypothyroidism causing sodium and glucose deficiency, followed by embedded lowmegatron post on stress hormone suppression of thyroid hormone conversion and lifestyle factors affecting cortisol and adrenaline.
Source summary and thread relationship - @lowmegatron · 2026-06-30 original
Ray Peat quote questioning TSH-centric thyroid treatment and advocating broader thyroid hormone therapy including T3, suggesting TSH itself may be pathogenic through pro-inflammatory actions.
Source summary and thread relationship - @lowmegatron · 2026-06-30 original
Thyroid hormone may prevent fetal alcohol syndrome. Pregnant rats consuming alcohol had lower thyroid hormones; T4 supplementation to offspring reduced behavioral patterns associated with syndrome. Alcohol suppresses T4 and T3 in humans.
Source summary and thread relationship - @lowmegatron · 2026-06-30 original
Observation that hypothyroidism is common in dogs. Cited source states it is an underdiagnosed but treatable endocrine disorder with excellent prognosis when appropriately diagnosed. Embedded quote from lowmegatron explains myxedema and facial changes in hypothyroid dogs.
Source summary and thread relationship - @lowmegatron · 2026-06-30 original
Author cites clinical descriptions of hypothyroidism skin manifestations (dry coarse skin, myxedema, xerosis) and discusses differences between thyroid extract (NDT) and levothyroxine in treating these symptoms. Embedded post by lowmegatron discusses mucopolysaccharide buildup in hypothyroid dogs.
Source summary and thread relationship - @lowmegatron · 2026-07-01 original
Author quotes Ray Peat on glycine's protective antistress action across cell types and prevention of multiple pathologies. Embedded post by lowmegatron discusses thyroid hormone, fibrosis, and fatty liver disease, citing multiple studies on TSH/thyroid hormone associations with liver fibrosis and T3's anti-fibrotic effects.
Source summary and thread relationship - @lowmegatron · 2026-07-01 original
Author presents research on thiamine (B1) supplementation for generalized anxiety disorder, citing dramatic reduction in anxiety scores and discontinuation of anxiolytic medications. Explains mechanism via lactate lowering and histamine reduction, compares B1 injection bioavailability to oral dosing, and notes magnesium as important cofactor. Embedded post by lowmegatron discusses near-infrared light for Hashimoto's anxiety, depression, fatigue, pain, and sleep.
Source summary and thread relationship - @lowmegatron · 2026-07-01 original
Author explains hypothyroidism-induced insulin resistance via lower T3 and higher TSH, cites study showing insulin sensitivity restoration with thyroid hormone replacement, and details multiple mechanistic pathways (postreceptor signaling defects, GLUT4 translocation, glycogen synthesis, mitochondrial oxidative metabolism). Embedded post by lowmegatron discusses TSH-induced insulin resistance via inflammatory pathways and cites human population studies.
Source summary and thread relationship - @lowmegatron · 2026-07-01 own thread
lowmegatron lists findings from experimental subclinical hypothyroidism in rodents. They include lower glucose infusion rate, higher free fatty acids, fasting insulin and HOMA-IR, lower IRS-1 phosphorylation and GLUT2, and higher TLR4, NF-κB, IRAK-1, IL-6 and TNF-α, all interpreted as insulin resistance.
Source summary and thread relationship - @lowmegatron · 2026-07-01 original
Author argues urinary free T3 is most objective thyroid sufficiency marker, correlates better with symptoms than other tests, normalizes with NDT but remains low on levothyroxine alone. Discusses differential symptom correlation with various thyroid tests and explains T4-to-T3 conversion mechanisms via deiodinase enzymes. Cites studies showing TSH/T4 poor correlation with clinical hypothyroidism diagnosis and mechanisms of inadequate T3 on levothyroxine monotherapy.
Source summary and thread relationship - @lowmegatron · 2026-07-01 own thread
lowmegatron argues that 24-hour free urinary T3 is the best test of thyroid hormone sufficiency. He reports values of about 756 pmol for untreated hypothyroid patients and 767 for levothyroxine-treated patients, versus 1990 for NDT-treated and 2,074 for healthy people. He describes an NDT protocol dosed by symptoms rather than TSH, and reports that hypothyroid symptoms were higher on levothyroxine than on NDT. He adds a disclaimer that he does not claim NDT is superior to properly dosed synthetic T3+T4, that thyroid hormones should be taken under medical supervision, and that this is not medical advice.
Source summary and thread relationship - @lowmegatron · 2026-07-01 original
Author explains levothyroxine normalizes TSH while leaving tissues T3-deficient, cites rat study showing normal blood tests despite low tissue T3, and describes how this creates hidden hypothyroidism. Discusses peripheral T4-to-T3 conversion inadequacy and presents human data showing >20% of post-thyroidectomy patients have abnormal T3/T4 ratios despite normal TSH.
Source summary and thread relationship - @lowmegatron · 2026-07-01 own thread
lowmegatron gives two references, one on combined T4+T3 treatment in thyroidectomized rats and one on levothyroxine monotherapy in athyreotic patients. He notes that the man in the accompanying image was treated with NDT USP, which contains T3. He explains that he uses older images because treatment back then was guided by symptoms, basal temperature and/or basal metabolic rate, which he considers more appropriate.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Author cites research on thyroid hormone changes in depression, noting decreased T3 and increased TSH with severity; embedded post by lowmegatron on T3 treatment for treatment-resistant depression in patient with normal thyroid tests.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Ray Peat quote on causes of hypothyroidism including fasting, stress, aerobic exercise, legumes, unsaturated fats, carotene, undercooked cruciferous vegetables; author notes TSH lowering effect; embedded post by lowmegatron on over-exercising lowering T3 and TSH via cortisol.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Author speculates on methylene blue's antidepressant effect via thyroid hormone production; cites animal research showing T4 increase and thyroid peroxidase activity; cautions against use due to MAO-A inhibition; embedded post is Ray Peat quote on optimal methylene blue dose.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Ray Peat quote on hypothyroid symptoms (water retention, sodium loss) and treatment via calcium supplementation and dietary recommendations; embedded post by lowmegatron on thyroid hormone's role in energy metabolism and tissue swelling, with cited research on metabolic effects.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Ray Peat and cited researchers discuss correlations between thyroid hormone (T3), vitamin B1 (thiamine), basal metabolic rate, and intelligence; multiple studies presented showing thiamine supplementation associated with improved cognitive performance.
Source summary and thread relationship - @lowmegatron · 2026-07-02 original
Post presents data on urinary free T3 levels across untreated hypothyroidism, levothyroxine treatment, and NDT/Armour therapy, with claims that levothyroxine fails to raise T3 adequately compared to NDT. Embedded quoted post from lowmegatron discusses thyroid testing, symptom correlation, and conversion enzyme mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-07-04 original
Baking soda lowers aldosterone via sodium and bicarbonate; chronically elevated aldosterone causes inflammation, fibrosis, and cardiovascular disease; bicarbonate supplementation mimics CO2 retention and normal thyroid function by maintaining cellular carbon dioxide and stabilizing cells.
Source summary and thread relationship - @lowmegatron · 2026-07-05 original
Author critically examines claims that MTHFR polymorphisms interfere with thyroid hormone T4-to-T3 conversion, finding no primary research support. Presents evidence that thyroid hormone is upstream of MTHFR function via FAD availability, and cites association data linking MTHFR C677T to hypothyroidism risk without establishing causative mechanism for conversion defects.
Source summary and thread relationship - @lowmegatron · 2026-07-05 original
Author quotes Ray Peat on salt's role in lowering aldosterone and preventing tissue degeneration, fibrosis, aging, heart failure and edema. Describes low-sodium diet as dangerous and discusses aldosterone's multiple effects on cardiovascular and tissue health.
Source summary and thread relationship - @lowmegatron · 2026-07-05 own thread
lowmegatron quotes a passage claiming that hyponatremia occasionally occurs in hypothyroid younger people. It says thyroid-made carbon dioxide helps retain sodium, and that aldosterone saves sodium but makes the kidneys lose magnesium. It claims that extra salt is protective because it keeps the adrenals from making aldosterone, so the kidneys retain magnesium.
Source summary and thread relationship - @lowmegatron · 2026-07-05 own thread
lowmegatron quotes a passage claiming that with low thyroid function the kidneys lose sodium and cells cannot retain magnesium. It says increasing sodium compensates and turns off aldosterone, lowering inflammation and magnesium loss. It claims Brewer and his predecessors showed sodium alone commonly cured the whole problem.
Source summary and thread relationship - @lowmegatron · 2026-07-05 original
Author presents research finding that hypothyroidism doubles aldosterone and is related to high blood pressure through increased daytime diastolic values and noradrenaline. Cites study showing thyroid hormones participate in systemic arterial blood pressure homeostasis.
Source summary and thread relationship - @lowmegatron · 2026-07-06 original
Near-infrared light therapy reduces thyroid volume in Hashimoto's disease; combined with vitamin D (if serum <40 ng/mL) and 100 mcg oral selenium; 4x more patients reached normal thyroid volume; includes embedded Ray Peat quote about diet context.
Source summary and thread relationship - @lowmegatron · 2026-07-06 own thread
lowmegatron links to his in-depth article on the topic of the parent thread, which is about near-infrared light therapy and Hashimoto's. The link content is not supplied.
Source summary and thread relationship - @lowmegatron · 2026-07-06 original
Acne pathophysiology linked to thyroid hormone imbalances affecting sebaceous glands; vitamin A deficiency correlated with acne severity; Ray Peat discusses thyroid and vitamin A balance, liver consumption, bright light, and their effects on acne, dandruff, and skin cell turnover.
Source summary and thread relationship - @lowmegatron · 2026-07-07 original
Selenomethionine supplementation (200 mcg daily) during and after pregnancy reduces thyroid inflammation, TPO antibodies, and postpartum thyroid dysfunction in women with elevated TPO antibodies. Direct quotation from published study provided with specific outcome percentages and lab guidance on plasma selenium adequacy ranges.
Source summary and thread relationship - @lowmegatron · 2026-07-07 original
Case report of hip pain and joint degeneration caused by undiagnosed severe hypothyroidism, with complete resolution following thyroid hormone replacement. Initial misdiagnosis over 2-3 months; imaging showed hip effusion, femoral head demineralization and acetabular damage; treatment with levothyroxine reversed all changes within 2-3 months with normalized labs and normal follow-up imaging at one year.
Source summary and thread relationship - @lowmegatron · 2026-07-07 original
Observational studies show inverse association between dietary iodine intake and remission rates in Graves' hyperthyroidism. Higher iodine intake correlates with lower remission probability, higher antibody titers, and higher medication requirements. Research suggests low-iodine diet may reduce thyroid hormone production and lower medication doses needed for treatment.
Source summary and thread relationship - @lowmegatron · 2026-07-07 original
Case report of woman misdiagnosed with seronegative rheumatoid arthritis for 2 years presenting with progressive PIP joint pain, stiffness and swelling. Diagnosed with severe hypothyroidism (TSH 65.9); treated with levothyroxine 100 mcg daily; joint swelling disappeared within 3 months, grip strength increased, no residual pain except on maximum flexion. Follow-up radiographs showed soft tissue swelling resolution and no progression of erosions; remains well 2 years later.
Source summary and thread relationship - @lowmegatron · 2026-07-07 original
Nuclear measurement study of 15 hypothyroid patients showed extracellular water hyperhydration with liquid accumulation in interstitial space. Water retention severity correlates with age and disease gravity but not duration. Mechanism involves low cellular T3 limiting ATP and CO2 production, reducing sodium/potassium regulation; mucopolysaccharide gel buildup and stress-hormone-induced capillary leakiness.
Source summary and thread relationship - @lowmegatron · 2026-07-08 original
Hypothyroidism can cause atrial fibrillation; case study and mechanism explained. Case reports show levothyroxine treatment resolved AF symptoms. Studies indicate up to 8% of AFib patients are hypothyroid. Author notes hyperthyroidism is a more common AFib cause; normalizing thyroid hormone levels corrects the imbalance.
Source summary and thread relationship - @lowmegatron · 2026-07-08 original
US hypothyroidism prevalence increased from 9.5% to 11.7% (2012-2019), a 23% relative increase driven by changes in older adults (50+). Author compares prevalence data from medical claims/prescriptions to older survey-based lab values, noting methodological differences in case definition.
Source summary and thread relationship - @lowmegatron · 2026-07-08 original
Author discusses limitations of TSH testing for hypothyroidism diagnosis. TSH is blind to peripheral T4-to-T3 conversion and thyroid hormone resistance. Gene variants, stress, and diet affect conversion and activity independent of TSH. Contrasts TSH-based prevalence (10%) with Broda Barnes' symptom-based approach (40% responsive to NDT treatment).
Source summary and thread relationship - @lowmegatron · 2026-07-08 original
Author claims levothyroxine treatment does not normalize thyroid hormone levels despite normal TSH. Cites research showing levothyroxine-treated patients with normal TSH have lower T3 than healthy subjects. Explains mechanism: pituitary has better T4-to-T3 conversion than peripheral tissues, causing false TSH-based assessment. Argues TSH cannot be gold standard for adequacy.
Source summary and thread relationship - @lowmegatron · 2026-07-08 original
Case series of 5 children misdiagnosed with rheumatic/inflammatory conditions (hypermobility, fibromyalgia, juvenile rheumatoid arthritis, chondromalacia, dermatomyositis) ultimately caused by hypothyroidism. All improved with thyroid replacement; 3 recovered fully. Author explains low cellular T3 activity as cause and notes overlap with non-thyroid diagnoses.
Source summary and thread relationship - @lowmegatron · 2026-07-09 original
Blood tests cannot detect thyroid hormone activity in tissues; T3 is the active form with most effects outside blood. Basal body temperature may better indicate thyroid activity than blood tests. Hypothyroid symptoms are tissue-level effects, not arbitrary blood levels.
Source summary and thread relationship - @lowmegatron · 2026-07-09 original
Switching from levothyroxine to NDT (natural desiccated thyroid containing T4 and T3) dramatically improved quality of life and reduced hypothyroid symptoms. Author explains mechanism: levothyroxine monotherapy reduces T4-to-T3 conversion in tissues while suppressing TSH.
Source summary and thread relationship - @lowmegatron · 2026-07-09 own thread
lowmegatron invites readers who need help understanding hypothyroidism and low thyroid hormone to check out his video course and online community.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Carpal tunnel swelling caused by hypothyroidism is reversible with thyroid treatment. Study found median nerve cross-sectional area increased 36% in autoimmune thyroid patients; levothyroxine reduced it 14%, relieving symptoms. T3+T4 combination may be needed if levothyroxine alone insufficient.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Hypothyroidism increases LDL, Lp(a), and apo-B; T3 therapy rapidly lowers all three. Broda Barnes method reduced expected heart attacks by >90%. Author cautions against self-treatment with T3.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Ray Peat quoted on nutrient needs during stress, including vitamins A, C, E, pantothenic acid, and minerals magnesium, calcium, potassium, zinc, and sodium for different stress stages. Embedded post by lowmegatron discusses thyroid hormone T3/T4 as anti-stress substances and their protective effect against stress-induced gastric ulcers in animal research.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Author reports study findings on vitamin D supplementation reducing thyroid peroxidase antibodies in Hashimoto's patients. Embedded quoted post by lowmegatron discusses near-infrared light therapy combined with supplements reducing thyroid volume and improving function in Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Broda Barnes quoted on relationship between thyroid secretion and cholesterol levels, describing clinical observations that hyperthyroidism lowers cholesterol and proper thyroid dosing normalizes it. Embedded quoted post attributes Ray Peat quote on thyroid's role in pregnenolone production requiring adequate cholesterol, vitamin A, and protein.
Source summary and thread relationship - @lowmegatron · 2026-07-10 original
Ray Peat quoted on thyroid hormone T3's role in eliminating edema and treating carpal tunnel syndrome through swelling reduction, versus conventional surgical approach. Embedded post by lowmegatron discusses hypothyroidism-induced waterlogging of median nerve tissue and reversibility with levothyroxine treatment.
Source summary and thread relationship - @lowmegatron · 2026-07-13 original
Comprehensive list of 18+ factors that suppress thyroid hormone T4-to-T3 conversion, including fasting, low-calorie diets, nutrient insufficiencies, stress, sleep deprivation, exercise imbalance, inflammation, and hormone imbalances. Solutions are inferred from identified causes.
Source summary and thread relationship - @lowmegatron · 2026-07-13 original
Chromium picolinate at 1,000 mcg taken with levothyroxine reduces T4 absorption by ~17% over 6 hours in small study of 7 healthy volunteers. Mechanism is similar to ferric ion binding thyroxine causing malabsorption. Embedded quote discusses soy phytoestrogen interference with levothyroxine absorption and thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-07-13 original
Ray Peat quoted on athletic training slowing pulse via cortisol-mediated thyroid suppression as adaptation, with consequence of sterility in both sexes. Embedded quote discusses over-exercise lowering active T3 hormone via cortisol and prolactin mechanisms; carbohydrate/calorie support and creatine mentioned as potential aids.
Source summary and thread relationship - @lowmegatron · 2026-07-13 original
Baking soda and carbon dioxide administration slowed cancer spread in animal models of prostate and breast cancer. Ray Peat explains mechanism: bicarbonate provides sodium and CO2 to suppress lactic acid production, allowing tissue healing instead of continued growth. Low thyroid, calcium, vitamin D, and sodium all limit ability to produce sufficient CO2. Historical use of CO2 therapies documented.
Source summary and thread relationship - @lowmegatron · 2026-07-13 original
Magnesium absorption is dose-dependent; splitting doses throughout day optimizes absorption relative to single large dose. Four 100 mg doses absorb ~50% more than single 400 mg dose (~170 mg vs ~110 mg). Relative Mg absorption inversely related to ingested dose due to intestinal permeability limitation. Study compared bolus vs. distributed consumption of Mg-rich water with same total dose.
Source summary and thread relationship - @lowmegatron · 2026-07-14 original
Magnesium deficiency lowers thyroid hormone T3 in animals (chicks and rats) and may impair thyroid function in experimental type-2 diabetes; magnesium treatment shows partial restoration of thyroid function. No equivalent human research located by author.
Source summary and thread relationship - @lowmegatron · 2026-07-14 original
Low serum magnesium is associated with 3-4x increased likelihood of hypothyroidism, Hashimoto's disease, and thyroglobulin antibody positivity. Mechanisms involve immune dysregulation, cellular oxidative stress, energy metabolism, and mitochondrial function. Relationship may be bidirectional. Magnesium supplementation can improve thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
Hypothyroidism causes impaired muscle relaxation in skeletal and cardiac muscle, leading to continuous partial contraction and stiffness before fibrosis develops. Inadequate thyroid hormone prevents proper diastolic relaxation and complete contraction, creating functional heart failure correctable by thyroid supplementation. Hypothyroidism can cause atrial fibrillation in up to 8% of AF cases.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
Ray Peat quote on energy-deprived cells producing histamine; experimental study showing hypothyroidism increased mast cells 4.5x and histamine 50% in rats.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
Magnesium improves iodine uptake, thyroid hormone synthesis, and T4-to-T3 conversion; deficiency worsens hypothyroidism. Quoted study on magnesium supplementation effects in animal experiments and enzymatic mechanisms.
Source summary and thread relationship - @1immortals1 · 2026-07-15 original
Iodine insufficiency in 74% of population causes metabolic slowdown, fatigue, brain fog, and weight gain by preventing thyroid hormone production. Explains iodine structure in T3/T4, dietary sources and modern deficiency, brain and tissue effects, and recommends 150-500 mcg daily with selenium.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
Ray Peat explains hypothyroidism-caused nerve hyperhydration (water swelling) as mechanism for carpal tunnel syndrome, spinal stenosis, and joint deformation. Embedded post by lowmegatron on carpal tunnel median nerve swelling reversal with levothyroxine treatment, citing study.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
lowmegatron presents a case report, cited as 'Reversible Hair Loss due to Levothyroxine Overdose', of an infant with congenital hypothyroidism who developed diffuse non-scarring hair loss 15-20 days after starting levothyroxine. Hair regrew after the dose was reduced. The author concludes that overdose may cause hair loss. The author also gives a best-guess reading of the FT3 and FT4 levels because the assay ranges are not stated.
Source summary and thread relationship - @lowmegatron · 2026-07-15 original
Ray Peat anecdote: two moles appeared and grew during summer beer consumption, then shrank and disappeared when beer stopped; attributed to estrogen content. Embedded Ray Peat quote on topical progesterone/DHEA and increased T3 causing mole shrinkage, and epsom salt baths.
Source summary and thread relationship - @lowmegatron · 2026-07-16 original
TSH can be lowered by substances other than thyroid hormones; fasting reduces TSH secretion and cortisol elevation mediates this effect, suggesting mild cortisol elevations can significantly decrease TSH levels.
Source summary and thread relationship - @lowmegatron · 2026-07-16 original
Hypothyroid patients are 2x more likely to have SIBO and 2x more likely to develop it over 10 years; hypothyroid SIBO has distinct bacterial signature; levothyroxine treatment reduces SIBO risk, suggesting thyroid correction may be necessary for complete SIBO remission.
Source summary and thread relationship - @lowmegatron · 2026-07-16 original
lowmegatron claims that hypothyroid symptoms improve when the T3 to reverse T3 ratio is corrected using T3 with levothyroxine. He lists percent improvements across many conditions, including 65% for excessive hair loss in women. He quotes authors arguing that TSH is unreliable and that T4/T3 therapy should be guided by clinical criteria.
Source summary and thread relationship - @lowmegatron · 2026-07-16 original
Case report of 55-year-old female with multiple symptoms resolved through T3 and T4 optimization targeting T3:reverse T3 ratio; migraines, headaches, vertigo, aural fullness, itching, bronchitis, and allergies completely resolved after 3 years of metabolic optimization.
Source summary and thread relationship - @lowmegatron · 2026-07-17 original
Author cites a study showing treatment of hypothyroidism with levothyroxine eliminated depression symptoms and correlations between failing memory and T3/T4; posits hypothyroidism causes depression through low brain energy.
Source summary and thread relationship - @lowmegatron · 2026-07-20 original
Niacinamide may block free radical processes and lighten skin pigment; cited study shows 4% niacinamide effective in 40% of melasma patients. Embedded quote attributes hypothyroidism as melasma cause with levothyroxine treatment reducing hyperpigmentation 80% over 1.5 years.
Source summary and thread relationship - @lowmegatron · 2026-07-20 original
lowmegatron lists symptom frequencies in hypothyroid patients as reported in Broda Barnes's 'Hypothyroidism: The Unsuspected Illness'. They include 76% coarse hair, 57% hair loss and 41% brittle nails. He says many persist despite modern treatment and notes that Barnes used basal temperature, symptoms and NDT response.
Source summary and thread relationship - @lowmegatron · 2026-07-20 original
lowmegatron lists skin, hair and nail changes associated with hypothyroidism, including coarse, dry, thin skin, myxedema, carotenemia, pallor, brittle hair, alopecia, loss of the lateral third of the eyebrows, brittle nails and decreased sweating.
Source summary and thread relationship - @lowmegatron · 2026-07-20 own thread
lowmegatron invites readers who need help understanding hypothyroidism and low thyroid hormone to check out his video course and online community.
Source summary and thread relationship - @lowmegatron · 2026-07-20 original
Historical context that arthritis was standard sign of hypothyroidism in 1930s. Ray Peat anecdote: patient with stress/injury-induced arthritis resolved with levothyroxine treatment within two weeks, remaining free of arthritis for 15 years. Cited study shows thyroid involvement in rheumatological disorders irrespective of autoimmune status.
Source summary and thread relationship - @lowmegatron · 2026-07-21 original
Cites Dr. Broda Barnes observation that pallor occurs in ~60% of hypothyroid patients; quotes literature review explaining pallor mechanism (cutaneous vasoconstriction, mucopolysaccharide deposition, potential anemia) in hypothyroidism; embeds personal anecdote from AbudBakri on TSH elevation symptoms.
Source summary and thread relationship - @lowmegatron · 2026-07-21 original
Cites research on ginger supplementation improving fasting blood sugar, HbA1c, insulin resistance, ALT levels in NAFLD/MASLD, and metabolic markers in diabetic hemodialysis patients; references four systematic reviews and meta-analyses; embeds lowmegatron post on ginger's lipogenesis inhibition and weight loss effects.
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
Thyroid hormone T3 is critical for energy production and metabolism; ~50% of basal metabolic rate depends on thyroid hormone; author cautions T3 is for correcting deficiency, not universal fat-loss supplement; includes historical citation and mechanistic explanation.
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
TSH in normal range (0.1–10) correlates with resting energy expenditure; TSH increases from 0.1 to 10 linked to ~17% reduction in REE (~12% of total energy expenditure); author explains clinical TSH range distinction and cites research on thyroid hormone action.
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
lowmegatron argues that T3 stimulates new, thicker hair growth and skin rejuvenation. He says hair and skin problems were once recognised hypothyroid symptoms, that NDT corrects them because it provides T3, and that levothyroxine rarely does.
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
Klotho protein discovered 1997; anti-aging effects demonstrated in mice; levels highest in youth and decline with age; higher levels associated with kidney function, cognition, arterial health, bone strength, lower age-related disease burden; regulated by thyroid hormone T3.
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
TSH is poor marker for thyroid hormone sufficiency at tissue level; study shows no correlation between TSH and target tissue thyroid hormone effects; clinical and metabolic presentation plus free T4 should guide treatment, not TSH; includes Zulewski clinical scoring system (12 signs/symptoms) and tissue-level markers (ankle reflex, cholesterol, creatine kinase).
Source summary and thread relationship - @lowmegatron · 2026-07-22 original
Author shares Ray Peat's explanation of coffee withdrawal and how hypothyroidism and blood sugar problems amplify caffeine sensitivity; adequate cream and proper technique reduce adverse effects.
Source summary and thread relationship - @lowmegatron · 2026-07-23 original
Author shares post describing chronic hyperventilation reducing testicular size through CO2 retention loss, sympathetic tone increase, and pelvic floor tension; proposes addressing root causes via cellular respiration support and breathing technique.
Source summary and thread relationship - @lowmegatron · 2026-07-23 original
Levothyroxine (T4) normalizes TSH but does not correct low metabolic rate in obese hypothyroid women. Poor T4-to-T3 conversion limits efficacy. Natural desiccated thyroid (NDT) and T3 supplementation produce superior weight loss outcomes compared to levothyroxine alone, even at equivalent TSH ranges. Multiple studies demonstrate preference for T3-containing regimens.
Source summary and thread relationship - @lowmegatron · 2026-07-24 original
Chinese medicine treated hypothyroidism with thyroid glands from animals as early as the 6th-7th century CE, providing active thyroid hormone superior to modern single-hormone approaches. Historical example cites preparation of gelded ram thyroid glands dried and formed into pills for goiter treatment.
Source summary and thread relationship - @lowmegatron · 2026-07-24 original
Ray Peat on thyroid hormone T4-to-T3 conversion: requires glucose, selenium, adequate protein, and specific nutrient ratios; discusses mineral balance, estrogen interference, and optimal dosing strategies for thyroid replacement therapy including desiccated thyroid and synthetic combinations.
Source summary and thread relationship - @lowmegatron · 2026-07-25 original
Author discusses Ray Peat's historical emphasis on magnesium, particularly in hypothyroidism context. Author reports personal experience with topical magnesium chloride and oral magnesium bicarbonate water as effective, while magnesium glycinate and sucrosomial magnesium caused inflammatory side effects.
Source summary and thread relationship - @lowmegatron · 2026-07-25 own thread
lowmegatron quotes Ray Peat: "Magnesium is not retained well during stress or in hypothyroidism, so a supplement of several hundred milligrams daily is desirable.."
Source summary and thread relationship - @lowmegatron · 2026-07-25 original
Quoted post claims T3 thyroid hormone stimulates hair growth and skin rejuvenation; older NDT treatment provided physiologically relevant T3 dose whereas levothyroxine rarely does. Cites animal studies showing dose-dependent increases in hair growth and dermal thickening, and a case report of hair regrowth after thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2026-07-26 original
Quoted post discusses magnesium supplementation in hypothyroidism context, citing Ray Peat's recommendation for several hundred mg daily. Author notes magnesium is lost during stress and hypothyroidism, worsening thyroid dysfunction. Describes personal experience with different magnesium forms, finding only topical magnesium chloride and oral magnesium bicarbonate water effective; others caused inflammatory symptoms.
Source summary and thread relationship - @lowmegatron · 2026-07-26 original
Author argues fluoride lowers thyroid hormones T4 and T3 and impairs T4-to-T3 conversion. Cites animal studies showing taurine (1.5–3 g/day human equivalent) and tamarind restore thyroid hormone levels when fluoride exposure is high. Notes fluoride was historically used pharmacologically to suppress thyroid in hyperthyroidism. Describes protective mechanisms with taurine and fluoride elimination benefits of tamarind.
Source summary and thread relationship - @lowmegatron · 2026-07-26 own thread
Reference list for the author's claim that fluoride lowers thyroid hormones and that taurine, calcium and tamarind are protective. It lists rat, human observational, rabbit and cattle studies on fluoride, thyroid dysfunction and fluoride excretion. The quoted context is a separate post on prenatal fluoride exposure and lower IQ (PMID 28937959).
Source summary and thread relationship - @lowmegatron · 2026-07-26 original
Author cites studies showing TSH is poor measure for guiding thyroid therapy severity, with no or weak correlations to clinical presentation or tissue thyroid hormone action. Argues treatment should be guided by clinical/metabolic presentation and free thyroxine, not TSH. Includes quoted post describing similar findings about TSH limitations and clinical scoring methods.
Source summary and thread relationship - @lowmegatron · 2026-07-26 original
lowmegatron quotes a patient's notes describing improvement after switching from levothyroxine to NDT, including clearing eczema and no longer losing hair. He explains that levothyroxine (T4) must be converted to T3 and claims NDT's added T3 accounts for the improvements. Levothyroxine is described as a storage form, and the post refers to an image showing physical changes in hypothyroidism and recovery.
Source summary and thread relationship - @lowmegatron · 2026-07-27 original
Ray Peat quoted on magnesium as a calcium antagonist regulated by ATP and thyroid; embedded post by lowmegatron quotes Peat on parathyroid hormone, vitamin D, calcium intake, and soft tissue calcification (calciphylaxis) linked to estrogen and iron.
Source summary and thread relationship - @lowmegatron · 2026-07-27 original
Ray Peat quoted on high metabolic rate increasing vitamin A requirement due to pregnenolone and progesterone synthesis; clarification that preformed retinol/retinyl esters from animal foods are meant, not plant carotenes. Embedded post by lowmegatron discusses thyroid hormone imbalance effects on sebaceous glands and acne, cites studies on vitamin A and acne, quotes Peat on vitamin A-thyroid balance for acne management via hormone effects on skin cell turnover.
Source summary and thread relationship - @lowmegatron · 2026-07-27 original
Magnesium supplementation improves local tissue cortisol inactivation via 11β-HSD type 2 activity independent of blood cortisol levels; cited 6-month study using 350 mg daily magnesium citrate complex showing increased cortisol inactivation and potential CVD risk reduction. Embedded post by lowmegatron notes Ray Peat's historical emphasis on magnesium, its importance in hypothyroidism context, and personal experience with specific magnesium forms.
Source summary and thread relationship - @lowmegatron · 2026-07-27 original
Research on thyroid hormone (T3) regulation of exploratory behavior in animals and psychiatric symptoms in humans with thyroid dysfunction; study showing cortical T3 induces exploratory and risk-taking behavior in mice. Embedded post by lowmegatron discusses thyroid hormone decline effects on memory and depression treatment outcomes using levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-07-27 original
Bioidentical progesterone inhibits mast cell degranulation per cited study; discusses relevance to allergic and inflammatory conditions more prevalent in women. Embedded post by lowmegatron links hypothyroidism to mast cell increase and histamine elevation via Ray Peat quotation and animal study. User comments included praising progesterone effects on long-standing itching and MCAS symptoms.
Source summary and thread relationship - @lowmegatron · 2026-07-28 original
Hypothyroidism impairs nighttime glucose homeostasis, triggering elevated adrenaline and cortisol that disrupt sleep; T3 supplementation may improve sleep depth in some hypothyroid individuals; cited research on thyroid dysfunction and sleep architecture.
Source summary and thread relationship - @lowmegatron · 2026-07-28 original
Taurine reduces blood pressure and adrenaline in borderline hypertensive individuals; 6 g/day for 7 days showed 9 mmHg systolic blood pressure reduction accompanied by decreased adrenaline response. Embedded quote discusses hypothyroidism and adrenal activation in hypertension.
Source summary and thread relationship - @lowmegatron · 2026-07-28 original
Enterosgel, a non-specific intestinal adsorbent gel, reduced endotoxin levels by 56% on average in patients with chronic disease in a small 20-day study; 75% showed endotoxin reduction. Discussion of metabolic endotoxemia as driver of chronic inflammation and metabolic disease. Embedded quote on endotoxin and vitamin A.
Source summary and thread relationship - @lowmegatron · 2026-07-28 original
Ray Peat quotation: thyroid gland resumes functioning after stopping thyroid hormone supplementation; gland typically returns to pre-supplement state and is not permanently downregulated in medium-to-long term compared to starting point.
Source summary and thread relationship - @lowmegatron · 2026-07-29 original
Three-month randomized controlled trial in 70 women with Hashimoto's antibodies: selenium supplementation (200 mcg sodium selenite daily) achieved 25% remission of antibodies vs. 6% placebo; TPO antibodies decreased 34% vs. 12% placebo; thyroid structure normalized in responders.
Source summary and thread relationship - @lowmegatron · 2026-07-29 original
High-fat diet (60% fat from lard and soybean) triggers thyroid autoimmunity in rats through PD-1 immunosuppression downregulation, with omega-6 polyunsaturated fatty acids implicated as causative. Human studies show dyslipidemia associated with 35% increased hypothyroidism risk and higher serum lipid levels as independent risk factor for overt hypothyroidism progression.
Source summary and thread relationship - @lowmegatron · 2026-07-29 original
Thyroid hormone depresses noradrenaline and adrenaline secretion by blocking cellular production. This mechanism explains why hypothyroidism causes anxiety and high blood pressure.
Source summary and thread relationship - @lowmegatron · 2026-07-29 original
Ray Peat reports that chewing 5 mcg Cytomel (synthetic T3) rapidly restores memory within 3–5 minutes, with peak effect at 90 minutes. Dose of 25 mcg daily caused hypothyroid arrhythmia (heart pauses every 6 seconds lasting 1–2 seconds) within weeks; 10 mcg Cytomel immediately restored normal rhythm. Thyroid supplements had similar effect in Peat's acquaintances with arrhythmia and circulation problems from hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-07-29 original
Ray Peat reports consuming 50 cups of coffee daily for years while hypothyroid to manage stress, migraines, and fatigue. Within days of starting thyroid supplement, coffee craving disappeared and intake spontaneously dropped to 4–5 cups daily. Peat reframes this not as addiction but as homeostatic adaptation to hypothyroidism that resolved with thyroid correction.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Sudden multiplication of moles is sign of hypothyroidism. Ray Peat anecdote: two moles appeared on forehead after drinking small amounts of Modelo beer daily for one summer; moles regressed rapidly after stopping beer consumption, with larger mole disappearing within 3 weeks. Peat attributes mole growth to beer's estrogen content and hypothyroidism connection.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Brief repost linking to third-party comment on melanoma-hypothyroidism association and TSH receptor expression.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Higher serum selenium in older adults associated with higher T3, lower TSH, and lower T4, indicating improved thyroid hormone conversion and function. Study concludes reduced T4-to-T3 peripheral conversion related to impaired selenium status in elderly. Thyroid hormone conversion enzymes require selenium.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Author explains hypothyroidism mechanism involving glucose metabolism, adrenaline toxicity, and how T3 addition to T4 monotherapy improves anxiety, depression and quality of life, citing Ray Peat and multiple peer-reviewed studies.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Author lists interventions shown to lower thyroid antibodies in autoimmune thyroiditis, citing multiple peer-reviewed studies. Cautions that selenium and vitamin D optimization requires measurement, not blind supplementation.
Source summary and thread relationship - @lowmegatron · 2026-07-30 original
Author analyzes two studies on over-the-counter thyroid glandular and NDT products, finding 8 of 19 products contained no thyroid hormones, massive variance in T4 (65-fold) and T3 (71-fold) content, while prescription Armour Thyroid remains consistent at ~90% labeled potency.
Source summary and thread relationship - @lowmegatron · 2026-07-31 original
Author presents clinical case reports of histamine-related anxiety and panic attacks resolved with low-histamine diet and DAO supplementation, and notes hypothyroidism increases mast cells and histamine 4.5-fold with 50% increase in histamine content.
Source summary and thread relationship - @lowmegatron · 2026-07-31 original
Thyroid hormone is essential for pancreatic function; hypothyroidism reduces stomach acid, pancreatic enzymes, and gut motility, allowing bacterial overgrowth (SIBO). Raw carrots and cooked mushrooms may help disinfect the small intestine by supporting thyroid function and digestive secretions.
Source summary and thread relationship - @lowmegatron · 2026-07-31 original
Ray Peat quotation on T3-mediated magnesium absorption: T3 hormone directly promotes cellular magnesium absorption; thyroid hormone is required for cells to absorb and retain magnesium; magnesium deficiency in mast cells triggers inflammatory release; magnesium deficiency in muscle causes cramping.
Source summary and thread relationship - @lowmegatron · 2026-07-31 own thread
The author promotes their video course and online community for understanding hypothyroidism and low thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2026-07-31 original
T3 thyroid hormone treatment resolves 10-year history of symptoms including anxiety, low energy, poor digestion, and conversation difficulty. Person reports rapid optimization of TSH, FT3, FT4 within 10 days and recovery of prior self. Embedded post discusses urinary free T3 testing superiority and NDT medication advantages over levothyroxine alone.
Source summary and thread relationship - @lowmegatron · 2026-08-01 original
Ray Peat statement and research finding: thyroid hormone deficiency impairs brain cell relaxation, delaying sleep onset and preventing deep restorative sleep. Lower thyroid hormone levels correlate with longer sleep latency, shorter sleep duration, and lower sleep quality.
Source summary and thread relationship - @lowmegatron · 2026-08-01 original
Research findings on TSH as growth factor for human melanoma: TSH receptors are expressed on melanoma cells and lesions; TSH is functional on melanoma cells, inducing cAMP and MAPK pathway activation; elevated TSH in hypothyroid individuals may promote melanoma growth. Hypothyroidism shows high prevalence in melanoma population.
Source summary and thread relationship - @lowmegatron · 2026-08-01 original
First-person account of symptom improvements from levothyroxine to combined levothyroxine + T3 treatment: improved word-finding, cognition, libido, dopamine responsiveness, sleep quality, toenail growth, peripheral metabolism, social function within 2 weeks with sustained plateau by 8+ weeks. Transient anxiety resolved during adaptation.
Source summary and thread relationship - @lowmegatron · 2026-08-01 original
TSH elevation and low T3 shift metabolism toward insulin resistance; T4-only thyroid therapy may worsen this; T3 improves insulin markers in rodent studies. Author explains ten mechanisms by which hypothyroidism causes insulin resistance via postreceptor signaling, glucose transport, mitochondrial function, and leptin/adipokine dysregulation.
Source summary and thread relationship - @lowmegatron · 2026-08-01 own thread
The author summarizes research linking higher TSH and subclinical hypothyroidism to insulin resistance, including rat data on TLR4 and inflammatory signaling and a retrospective human study finding TSH associated with HOMA-IR. T3 treatment improved insulin signaling in rodents. The quoted context is the author's post with Ray Peat and studies on hypothyroidism, adrenaline and T4/T3 combination therapy.
Source summary and thread relationship - @lowmegatron · 2026-08-02 original
Direct quotation of Ray Peat stating that hypothyroidism elevates blood cholesterol and thyroid hormone replacement normalizes it proportional to basal metabolic rate restoration. Author notes Dr. Broda Barnes achieved 90% reduction in expected heart attacks using NDT with careful dosing, and recommends medical supervision rather than self-dosing T3.
Source summary and thread relationship - @lowmegatron · 2026-08-02 original
Author reports anecdotal list of health outcomes observed in some patients using thyroid hormone (T3): weight loss (50 lbs), histamine dysregulation resolution, psoriasis clearance, ovulation restoration, PMDD remission, Raynaud's disappearance, ADHD medication discontinuation, post-nasal drip cessation, calcification/sclerosis reversal, myxedema reversal, and elevated body temperature (2 degrees). No mechanistic explanation provided; framed as variable individual responses.
Source summary and thread relationship - @lowmegatron · 2026-08-02 own thread
The author invites readers who want help understanding hypothyroidism and low thyroid hormone to check out their video course and online community, and gives a link.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Author cites multiple sources (Broda Barnes, medical literature, Ray Peat) connecting thyroid deficiency and elevated TSH to unexplained infertility; notes TSH normal range reduction and quotes Peat on optimal TSH threshold for health.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Author explains hormone effects on skin pigmentation: estrogen darkens, progesterone lightens; thyroid status affects melanin synthesis; cites research on membrane receptors (GPER, PAQR7) and Ray Peat interpretation; notes subclinical hypothyroidism as cause of hyperpigmentation.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Author acknowledges receiving frequent questions about hypothyroidism diagnosis, supplementation, and thyroid hormone dosing; indicates these are complex questions without simple answers; references linked content.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author says hypothyroidism is not one condition. The term covers several conditions that lead to low thyroid hormone activity. They define true hypothyroidism as the thyroid gland being unable to produce enough hormone, for multiple reasons.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author claims Hashimoto's is the main cause of primary hypothyroidism and needs different handling from secondary or tertiary forms. They say TSH and T4 tests are good at flagging severe primary cases. TSH is often low or normal in secondary and tertiary cases, and neither test shows T3, which they call the critical component.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author defines primary hypothyroidism as a problem in the thyroid gland itself. Secondary is the pituitary failing to stimulate the thyroid, and tertiary is the hypothalamus failing to stimulate the pituitary.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author claims hypothyroid symptoms are mostly caused by low thyroid hormone activity inside cells. They say T3 is the active hormone but the thyroid makes mostly T4, which must be converted. They also claim that the TSH rise in primary hypothyroidism is inflammatory and affects other organs, notably the heart.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author says low thyroid hormone activity can cause hypothyroid symptoms even when the thyroid produces enough hormone. They describe this as not true hypothyroidism and not medically recognized as such, because the thyroid, pituitary and hypothalamus work, yet symptoms are similar due to low T3 activity.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author says decreased conversion of T4 (which they call the inactive hormone) to T3 can lower T3 and cause hypothyroid symptoms in someone who would not be diagnosed as hypothyroid. They claim there are many causes of poor conversion and that the cause must be identified to fix it.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author states that basal readings below 97.8 °F (36.6 °C) indicate hypothyroidism and readings above 98.2 °F (36.8 °C) suggest hyperthyroidism. They caution that other factors affect temperature and that the test is not perfect.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
The author says levothyroxine (T4) is the most common treatment for true hypothyroidism but must be converted to T3, and claims conversion is rarely optimal on levothyroxine alone. They claim adding some T3 "kickstarts" conversion and gives a stable T3 supply through the day, and that blood tests can be normal while T3 activity is suboptimal and symptoms persist.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Lowmegatron claims diet and lifestyle determine thyroid gland health, hormone conversion, and uptake and activity in cells. He says stress and nutritional deficiencies can quickly impair conversion, leaving low thyroid activity with normal TSH and T4. He relays an anecdote about a woman who improved after dietary changes and replacing some workouts with walks.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Lowmegatron says simple questions about hypothyroidism have no one-size-fits-all answer and that anyone offering one doesn't grasp the problem. He notes he has written at length on social media, praising X's search and linking, and admits one post can't cover everything.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Lowmegatron invites readers who need help understanding hypothyroidism and low thyroid hormone to check out his video course and online community, with a link.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Author shares URL and embedded quoted post by lowmegatron on thyroid hormone and depression.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Author quotes Ray Peat on thyroid adaptation to stress, chronic depression under prolonged stress, and progressive thyroid decline with aging unless supported with appropriate intervention.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post says low thyroid impairs sugar storage, so the body burns down slowly without efficient repair, and the goal is to stop decay and begin repair.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post claims hospital patients with the same diseases but lower body temperature are less likely to survive. It says low thyroid, an adaptation to stress, eventually stops being protective and interferes with healing, leaving people living on adrenaline and cortisol that destroy tissues.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post claims he has seen low-thyroid people make 30-40 times normal adrenaline, which leads to cortisol production. It says this adaptation can feel like being on speed and confuses doctors and patients.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post says adrenaline and cortisol normally rise at night as a fasting state, but are higher with low thyroid or old age, making nights more stressful and insomnia more common.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post says early waking after 5-6 hours is common in older people and in young people with low thyroid. It claims extremes can cause hyperactivity, poor attention, irritability and depression, which disappear when thyroid and blood sugar are normalized and cortisol and adrenaline come under control.
Source summary and thread relationship - @lowmegatron · 2026-08-03 own thread
Quoting Ray Peat, the post challenges the stereotype that low-thyroid people are lethargic. It claims many become hyperactive from high adrenaline compensating for low blood sugar.
Source summary and thread relationship - @lowmegatron · 2026-08-03 original
Quote of Ray Peat explaining that low thyroid people may become hyperactive due to high adrenaline compensating for low blood sugar, and that chronic stress causes thyroid depression with age.
Source summary and thread relationship - @lowmegatron · 2026-08-04 original
DAO enzyme supplementation reduces symptoms from histamine intolerance; includes citations on DAO efficacy for migraine and histamine-related conditions; recommends plant-based DAO-Head specifically and notes 6-week timeline for effects; lists common causes of elevated histamine.
Source summary and thread relationship - @lowmegatron · 2026-08-04 original
Study showing hypothyroid rats burned less energy and stored more fat; describes inverse relationship between T3 thyroid hormone and leptin; shares embedded post on T3's role in energy production and metabolic rate.
Source summary and thread relationship - @lowmegatron · 2026-08-05 original
Mechanistic explanation connecting thyroid hormone, CO2 production, mast cell degranulation, and histamine in nasal congestion, with citation to peer-reviewed study on CO2 and mast cell suppression.
Source summary and thread relationship - @lowmegatron · 2026-08-05 original
Hypothesis that thyroid hormone resistance may underlie fibromyalgia, citing evidence that supraphysiologic T3 doses are safe and effective for euthyroid fibromyalgia patients despite normal thyroid lab values, with emphasis on caution regarding T3 dosing.
Source summary and thread relationship - @lowmegatron · 2026-08-05 original
Mechanism by which thyroid hormone determines cavity susceptibility through effects on saliva quality and salivary gland function, with multiple animal and human study citations.
Source summary and thread relationship - @lowmegatron · 2026-08-05 own thread
Lowmegatron quotes a rat study abstract. Dietary desiccated thyroid-induced hyperthyroidism was linked to a lower relative prevalence of dental caries and to changes in saliva proteins, while PTU-induced hypothyroidism was linked to more caries. The abstract concludes that salivary gland function and caries are closely related to thyroid physiology.
Source summary and thread relationship - @lowmegatron · 2026-08-06 original
Discussion of learned helplessness phenomenon in animals and Ray Peat's view on hopelessness as psychological response to inescapable stress, with identification of T3 as substance that can reverse learned helplessness.
Source summary and thread relationship - @lowmegatron · 2026-08-06 original
Contrasts Ray Peat's view that raising life energy enables building and repair versus mainstream view of lowering energy to reduce wear and tear. Quoted post discusses thyroid adaptation under stress and chronic depression with aging.
Source summary and thread relationship - @lowmegatron · 2026-08-06 original
Explains how levothyroxine monotherapy may lower brain T3 levels and cause depression, contrasting with physiological T3:T4 ratios. Discusses conversion capacity variation, brain thyroid hormone concentration mechanisms, T3 augmentation antidepressant effects, and depression-thyroid associations.
Source summary and thread relationship - @lowmegatron · 2026-08-06 original
States that hypothyroidism causes vocal cord swelling leading to hoarseness and voice changes, citing study showing significant perceptual voice parameter differences in thyroid disorder patients.
Source summary and thread relationship - @1immortals1 · 2026-08-07 original
Describes 2024 federal court ruling on fluoride neurotoxicity risk to children, explains fluoride accumulation mechanisms in pineal gland and hippocampus, IQ reduction findings, thyroid suppression, international cavity rate comparisons, and recommends reverse osmosis filtration and hydroxyapatite toothpaste as countermeasures.
Source summary and thread relationship - @lowmegatron · 2026-08-07 original
Ray Peat discusses interactions between low cholesterol, thyroid status, and inflammatory processes including connective tissue pain and hormonal regulation. Explains role of sweet fruits as anti-inflammatory and cholesterol-supportive. Addresses statin effects on brain cholesterol synthesis and mental side effects.
Source summary and thread relationship - @lowmegatron · 2026-08-07 original
Describes mechanism of thyroid replacement therapy reversing hypertension in hypothyroid patients. Embedded post elaborates on thyroid role in efficient glucose energy production, adrenaline release from hypothyroidism, and comparison of T4 monotherapy versus T4/T3 combination therapy effects on anxiety, depression, and quality of life.
Source summary and thread relationship - @lowmegatron · 2026-08-07 original
Describes arthritic pain as overlooked symptom of low thyroid hormone availability. Cites research on thyroid involvement in rheumatological disorders, presents detailed case of hypothyroidism presenting as destructive arthropathy reversed by levothyroxine, describes rheumatic manifestations in children responsive to thyroid replacement, and includes Ray Peat anecdote about rapid arthritis resolution with thyroid treatment.
Source summary and thread relationship - @lowmegatron · 2026-08-07 original
Mold exposure induces stress and lowers thyroid hormone conversion causing hypothyroid symptoms despite normal thyroid gland; case series of 4 patients unable to work on levothyroxine (T4) alone who recovered when T3 was added and returned to mold-free buildings; mechanism attributed to non-thyroidal illness syndrome (NTIS).
Source summary and thread relationship - @lowmegatron · 2026-08-08 original
Hypoglycemia was a recognized symptom of hypothyroidism historically but omitted from modern textbooks; multiple sources (Broda Barnes, Ray Peat, clinical case reports, animal studies) document that thyroid hormones enable efficient glucose production and that hypothyroidism causes glucose waste leading to hypoglycemia.
Source summary and thread relationship - @lowmegatron · 2026-08-08 original
Author reports plantar fasciitis as personal first indicator of low thyroid hormone, particularly noticeable at night; cites one paper associating elevated TSH and lower thyroid hormones with plantar fasciitis; references case series of hypothyroid children misdiagnosed with various rheumatic conditions who improved with thyroid replacement.
Source summary and thread relationship - @lowmegatron · 2026-08-08 original
Hypothyroid men have lower libido, lower sperm count, higher prolactin, and twice the prevalence of clinical hypogonadism (13.8% vs 6.5%); mechanism involves T3-mediated STAr protein expression in Leydig cells limiting cholesterol transport for testosterone synthesis; T3 addition to T4 therapy improves sexual desire in biochemically euthyroid men with persistent symptoms.
Source summary and thread relationship - @lowmegatron · 2026-08-08 original
Ray Peat anecdote on muscle gain inability in hypothyroidism; notes low testosterone and high cortisol shift body composition from muscle to fat; mentions thyroid hormone excess also causes muscle wasting.
Source summary and thread relationship - @lowmegatron · 2026-08-09 original
T3 thyroid hormone essential for body temperature maintenance; approximately 37-50% of energy expenditure in sedentary/normal humans dedicated to thermoregulation; body temperature useful indicator of thyroid status independent of blood tests.
Source summary and thread relationship - @lowmegatron · 2026-08-09 original
Progesterone and thyroid supplementation resolved 4-year histamine intolerance in 3 days despite normal thyroid labs; progesterone inhibits mast cell degranulation; hypothyroidism increases mast cell population and histamine content; embedded quote links thyroid hormone to CO2 production and mast cell regulation.
Source summary and thread relationship - @lowmegatron · 2026-08-09 original
Well-designed study comparing natural desiccated thyroid (NDT) to levothyroxine showed NDT superior with 2.5-6.5× lower symptom rates; NDT dosing based on symptoms and urinary free T3, not TSH; T3 is active hormone; levo has minimal biological activity; improvement averaged 69% compared to <25% placebo effect.
Source summary and thread relationship - @lowmegatron · 2026-08-10 original
Thyroid hormone promotes liver regeneration after major injury; 70% hepatectomy in normal thyroid rats showed full recovery in 96 hours vs only 50% recovery in 4 days in hypothyroid rats; thyroid hormone restores regenerative capacity and mitochondrial function.
Source summary and thread relationship - @lowmegatron · 2026-08-10 original
Author reports multiple anecdotes linking plantar fasciitis to low thyroid hormone; NDT treatment and increased carbohydrate intake resolved foot pain; embedded study shows higher TSH and lower T3/T4 in plantar fasciitis patients.
Source summary and thread relationship - @lowmegatron · 2026-08-10 original
Selenium concentration is highest in the thyroid and deficiency is associated with hypothyroidism, subclinical hypothyroidism, Hashimoto's, Graves' disease, and thyroid cancer. Embedded quote attributes to lowmegatron that selenium is required for thyroid hormone conversion and calms autoimmune thyroid processes.
Source summary and thread relationship - @lowmegatron · 2026-08-10 original
Hypothyroid men have lower libido, lower sperm count, and higher prolactin; they are twice as likely to have clinically low testosterone. T3 enhances testosterone biosynthesis via STAr protein expression in Leydig cells. Correcting hypothyroidism can double testosterone and halve prolactin. Subclinical hypothyroidism (TSH 4.5–10) also causes sexual dysfunction. Adding T3 to T4 therapy improves sexual desire.
Source summary and thread relationship - @lowmegatron · 2026-08-11 original
Women injected with endotoxin show significantly less empathy for others' psychological pain compared to placebo controls. Endotoxin interferes with thyroid hormone and glucose metabolism; empathy is a high-energy state. Low-grade inflammation reduces empathy as an adaptive energy-conservation strategy. Embedded quote from lowmegatron describes endotoxin effects on mood and behavior, including aggression and anxiety in rats fed fermentable fibers.
Source summary and thread relationship - @lowmegatron · 2026-08-11 original
Quotation from McGavack's clinical text states methimazole is the least toxic and most efficient antithyroid compound compared to iodine, propylthiouracil, and methylthiouracil. Embedded quote from lowmegatron describes iodine-induced hypothyroidism from habitual Povidone-iodine gargling and excessive kelp/kombu consumption, with case study of Japanese man whose TSH normalized when iodine sources were removed.
Source summary and thread relationship - @lowmegatron · 2026-08-11 original
Quotation from McGavack's clinical text states that in thiamine deficiency, experimental animals show decreased ability of thyroid hormone to raise basal metabolic rate. Embedded quote from lowmegatron synthesizes Ray Peat statements on thyroid and thiamine for cognitive function, citing studies linking basal metabolic rate to IQ, thyroid hormone to intelligence, thiamine intake to cognitive performance, and a controlled trial of thiamine supplementation in orphans showing superior gains across 18 test tasks.
Source summary and thread relationship - @lowmegatron · 2026-08-11 original
Saturated fat, particularly clarified butter, improves survival in severe alcoholic hepatitis and reduces alcoholic liver disease. Saturated fat is resistant to peroxidation unlike polyunsaturated fat, reducing inflammation, improving gut barrier function, and preventing thyroid hormone interference.
Source summary and thread relationship - @lowmegatron · 2026-08-12 original
Selenium is essential for tissue-level thyroid hormone T3 production. Consuming shellfish, seafood, halibut, cod, or sole provides sufficient selenium to maintain active tissue thyroid hormone supply.
Source summary and thread relationship - @lowmegatron · 2026-08-12 own thread
Quoting (apparently Ray Peat; the attribution is not stated in this post), the post claims selenium is needed to activate the thyroid, that other B vitamins and nutrients are needed too, that low thyroid and low selenium are the most common problems, and that glucose is needed to use selenium for thyroid activation.
Source summary and thread relationship - @lowmegatron · 2026-08-12 own thread
lowmegatron claims hypothyroidism raises cortisol and that hypothyroid symptoms resemble excess-cortisol symptoms. He cites a study (PMID 23111240) whose authors suggest TSH above 2.0 uIU/L may be abnormal because of its positive relationship with cortisol. He also says thyroid hormone regulates 11β-HSD2, which inactivates cortisol, so low T3 reduces cortisol detox, and that TSH is not a reliable measure of this.
Source summary and thread relationship - @lowmegatron · 2026-08-12 own thread
lowmegatron says hypothyroidism activates the sympathetic nervous system, raising stress hormones, anxiety, blood sugar and blood pressure. He lists +60% cortisol and doubled adrenaline, noradrenaline and aldosterone, from a study of hypothyroid people who stopped their medication. He says diastolic blood pressure fell as T3 rose with replacement.
Source summary and thread relationship - @lowmegatron · 2026-08-12 original
Thyroid hormone T3 accelerates response to tricyclic antidepressants, with stronger effect in women. Women experience higher rates of thyroid issues and thyroid hormone conversion problems, reducing available active T3. Meta-analysis of six studies found T3 significantly more effective than placebo, with effects stronger as female study participation increased.
Source summary and thread relationship - @lowmegatron · 2026-08-12 original
The author cites a 2017 paper reporting higher TSH in women with unexplained infertility. He says TSH of 2.5-5.0 was twice as common in that group, and quotes McGavack's historical text linking subclinical hypothyroidism to miscarriage and its symptoms.
Source summary and thread relationship - @lowmegatron · 2026-08-12 original
TSH levels within normal range (2.5-4.8+) are associated with increased miscarriage risk in pregnant women, citing clinical evidence that higher normal TSH poses obstetric risk.
Source summary and thread relationship - @lowmegatron · 2026-08-13 original
T3 (active thyroid hormone) has been neglected in favor of T4 in thyroid research and treatment. Ray Peat distinguished low T3 activity from traditional hypothyroidism definition. Multiple causes beyond gland dysfunction can produce low T3 symptoms.
Source summary and thread relationship - @lowmegatron · 2026-08-13 original
Light exposure affects thyroid hormone requirements seasonally. Absence of bright light creates progesterone deficiency, allowing unopposed estrogen and prolactin. Ray Peat observed seasonal health problems (premenstrual syndrome, arthritis, colitis) in students moving to cloudy Eugene and proposed reorganizing medicine around estrogen-related processes.
Source summary and thread relationship - @lowmegatron · 2026-08-13 original
Ray Peat quotation about protein-calorie malnutrition suppressing pituitary hormone production; explanation of pituitary-thyroid signaling and effects of low caloric and carbohydrate intake on thyroid function and hormone conversion.
Source summary and thread relationship - @lowmegatron · 2026-08-14 original
Ray Peat statement on muscle knots/myofascial pain causes; study showing muscle knots reduced with thyroid hormone in patients with normal thyroid labs but hypothyroid symptoms.
Source summary and thread relationship - @lowmegatron · 2026-08-14 original
Historical case study and recent research on thyroid hormone T4 for hearing improvement. Hypothyroidism causes hearing loss; thyroid hormone treatment shows improvement. Resistance to thyroid hormone associated with elevated hearing loss risk. Embedded post describes thyroid hormone resistance genetic basis and associated health conditions.
Source summary and thread relationship - @lowmegatron · 2026-08-15 original
Maternal hypothyroidism during pregnancy associated with elevated autism risk in offspring. Severe maternal hypothyroxinemia (low T4) shows adjusted odds ratio 3.89 for child probable autism. Historical case report documents cognitive and behavioral improvements in autistic child using high-dose T3 therapy under medical supervision. Embedded post describes elevated blood serotonin in autism and hypothyroidism-serotonin relationships.
Source summary and thread relationship - @lowmegatron · 2026-08-15 original
Ray Peat quote: thyroid deficiency should be considered when digestive gas persists despite diet changes, as hypothyroidism causes low stomach acid and generalized digestive depression
Source summary and thread relationship - @lowmegatron · 2026-08-15 own thread
lowmegatron says reduced motility is the central GI manifestation of hypothyroidism, with low stomach acid, delayed gastric emptying, constipation and SIBO. He proposes tissue waterlogging as a likely mechanism. He says levothyroxine monotherapy is more strongly associated with SIBO and offers possible reasons (inadequate T3, sicker patients, longer duration), which he suspects combine. He quotes a cohort finding that levothyroxine was a stronger predictor of SIBO than hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-08-15 own thread
lowmegatron says SIBO rates in hypothyroidism are 3 to 10x those of healthy people. He quotes a study in which 54% of hypothyroid patients had a positive breath test versus 5% of controls. He says correction usually needs T3 optimization and decontamination. The quoted parent post claims SIBO lowers vitamin K2 and matrix Gla-protein activation and so raises atherosclerosis risk.
Source summary and thread relationship - @lowmegatron · 2026-08-16 original
Ray Peat quote on bowel inflammation treatment including multiple interventions; followed by discussion of lidocaine gel for ulcerative colitis with multiple clinical study summaries showing rapid symptom relief, mucosal healing, and lymphocyte depletion with 83% response rate in larger trial.
Source summary and thread relationship - @lowmegatron · 2026-08-16 original
Brief claim that impulsive and violent men tend towards reactive hypoglycemia with citation links. Embedded post by lowmegatron discusses hypothyroidism-related hypoglycemia, mechanisms of glucose dysregulation, and thyroid therapy effects on liver glycogen and blood sugar.
Source summary and thread relationship - @lowmegatron · 2026-08-16 original
Ray Peat recommendation for early morning headaches caused by hypoglycemia via light exposure, liver nutrition, and cyproheptadine; followed by explanation that hypoglycemia drives headaches through free fatty acid mobilization increasing prostaglandins/serotonin/CGRP, and fruit juice treatment (orange juice at 4am) with case examples and fasting as migraine trigger.
Source summary and thread relationship - @lowmegatron · 2026-08-16 original
Comparison of bonobo and chimpanzee development showing bonobos retain elevated thyroid hormone T3 into adulthood, correlating with their playful and friendly behavior versus chimpanzee aggression. Embedded post links thyroid hormone T3 to reversal of learned helplessness in humans and personal testimony of mood/depression recovery with T3 supplementation.
Source summary and thread relationship - @lowmegatron · 2026-08-17 original
Author lists interventions claimed to decrease chronically elevated cortisol, including light exposure, dietary fats, micronutrients, supplements, and lifestyle factors. Quoted source discusses mold-induced stress lowering thyroid hormone T3 conversion and successful T3 supplementation in four patients previously unresponsive to levothyroxine.
Source summary and thread relationship - @lowmegatron · 2026-08-17 original
Author claims hypothyroidism stimulates adrenal output and sympathetic nervous system, doubling adrenaline and noradrenaline and increasing cortisol by 60%, citing study on thyroid hormone role in blood pressure. Embedded quote from lowmegatron discusses forgotten hypoglycemia symptom of hypothyroidism, quoting Ray Peat, Broda Barnes, and citing multiple studies on thyroid-glucose metabolism.
Source summary and thread relationship - @lowmegatron · 2026-08-18 original
Author quotes clinical observation that patients with myofascial pain and mild hypothyroid-like symptoms refractory to standard therapies responded to mildly supraphysiological thyroid hormone dose. Embedded post attributes Ray Peat statement on hypothyroidism and parathyroid hormone as main causes of muscle knots, with clinical study citation.
Source summary and thread relationship - @lowmegatron · 2026-08-18 original
Author claims pregnenolone synthesis from cholesterol depends on thyroid hormone, and hypothyroidism throttles this conversion, lowering sex hormones and increasing pain, depression, and anxiety. Cites study showing lower DHEA, DHEA-S, and pregnenolone sulfate in hypothyroid patients.
Source summary and thread relationship - @lowmegatron · 2026-08-18 original
Hashimoto's patients with normal TSH experience fatigue and pain despite normal TSH levels. Levothyroxine monotherapy fails to optimize T3, whereas physiologic NDT or combined levo+liothyronine reduces residual symptoms. NDT dosed by symptoms rather than TSH shows substantially lower rates of constipation, headache, muscle cramps, depression, rheumatoid symptoms, cold intolerance, and fatigue compared to levothyroxine. Rheumatic manifestations of hypothyroidism in children resolve with thyroid replacement.
Source summary and thread relationship - @lowmegatron · 2026-08-19 original
Personal anecdote: T3 (Cytomel) improved deep sleep onset, reduced 4am tachycardia and panic attacks. T3+T4 combination may improve slow-wave sleep compared to T4 alone, though uncertainty acknowledged. Citation describes decreased stages 3-4 sleep in untreated hypothyroidism. Embedded post promotes author's video course and online community on hypothyroidism understanding.
Source summary and thread relationship - @lowmegatron · 2026-08-19 original
Ray Peat explains adrenaline compensation for low thyroid function dilates pupils. Levothyroxine works when liver has sufficient glucose and is not stressed by adrenaline. Combined T4+T3 formulations (Armour thyroid, Novotiral) superior to levothyroxine alone for stress hormone patterns. Cannabis interferes with liver function; recovery requires adequate protein and nutrients (orange juice, eggs, milk, cheese, cooked mushrooms, occasional shellfish).
Source summary and thread relationship - @lowmegatron · 2026-08-19 original
Author explains that experimental hypothyroidism increases adrenaline (which raises heart rate) despite lower T3 normally decreasing heart rate, citing a study on sympathetic and adrenal activation in hypothyroidism.
Source summary and thread relationship - @1immortals1 · 2026-08-20 original
Author reports vitamin D supplementation raised testosterone 25% (and free testosterone 20%) in a year-long placebo-controlled trial, explains direct mechanism via vitamin D receptors on testis, pituitary, and hypothalamus, and recommends checking vitamin D levels before buying testosterone boosters.
Source summary and thread relationship - @lowmegatron · 2026-08-20 original
Ray Peat warned about fluoride's effects on thyroid hormones in the 1970s. Fluoride lowers T3 and T4 and was historically used to treat hyperthyroidism. High intake is associated with hypothyroidism and in utero exposure with lower IQ. Taurine, calcium, and tamarind cited as protective compounds.
Source summary and thread relationship - @lowmegatron · 2026-08-20 original
The author quotes a patient testimonial saying desiccated thyroid (NDT) resolved hair loss, fatigue and other symptoms after years on levothyroxine. He explains that NDT contains T3 and T4, claims people who fail on levothyroxine cannot make enough T3, and says synthetic T3/T4 combinations usually work as well as NDT when dosed properly.
Source summary and thread relationship - @lowmegatron · 2026-08-21 original
Reddit user anecdote: hypothyroidism associated with skin darkening and loss of natural glow. Described progression from naturally glowing skin to muddy, dull, darker/tanned appearance with grey-brown tone, loss of translucency and brightness despite increased moisturizer use.
Source summary and thread relationship - @lowmegatron · 2026-08-21 own thread
lowmegatron quotes a case report in which a woman with subclinical hypothyroidism (TSH 7.02, free T4 1.06) and hyperpigmentation improved after levothyroxine. He adds that estrogen is another possible cause and that any benefit from levothyroxine depends on conversion to T3. The quoted parent discusses thyroid antibodies, estrogen and melasma.
Source summary and thread relationship - @lowmegatron · 2026-08-21 original
Mucopolysaccharides accumulate in tissue when T3 is low, causing tissue bloating and edema in hypothyroidism. Symptoms include nasal congestion, voice changes, carpal tunnel, joint issues. Shows before/after photos of women treated with NDT (which contains both T3 and T4), contrasting with levothyroxine (T4 only). Embedded quote promotes NDT video course and community.
Source summary and thread relationship - @lowmegatron · 2026-08-21 original
PEA (palmitoylethanolamide) helps high histamine conditions by stabilizing mast cells and inhibiting histamine release. Natural fatty-acid amide produced in human tissues; modulates immune function. Must use micronized or ultramicronized forms. Multiple animal and human studies cited showing mast cell stabilization, reduced inflammatory mediators (PG D2, TNF-α, histamine), and symptom reduction.
Source summary and thread relationship - @lowmegatron · 2026-08-22 original
Patient testimonial contrasting levothyroxine (T4) alone with NDT (natural desiccated thyroid) containing T3; claims NDT resolved depression, pain, and relationship dysfunction. Mechanism: insufficient T3 from T4 monotherapy; NDT provides T3 directly and improves conversion.
Source summary and thread relationship - @lowmegatron · 2026-08-22 original
Critique of low-calorie, low-carbohydrate diet recommendations for hypothyroid patients: caloric restriction and low carbohydrate intake impair T4-to-T3 conversion, worsening hypothyroidism while requiring progressive caloric reduction. Five peer-reviewed studies cited showing calorie and carbohydrate effects on thyroid hormone metabolism.
Source summary and thread relationship - @lowmegatron · 2026-08-22 original
Thyroid hormone and vitamin D regulate mast cell activation and degranulation through TSH and parathyroid hormone; dietary calcium, phosphate, and magnesium modulate these pathways.
Source summary and thread relationship - @lowmegatron · 2026-08-23 original
Ginger and vitamin B1 (thiamine) improve specific hypothyroid symptoms; ginger reduces TSH and improves multiple symptom domains at 500 mg twice daily; thiamine 600 mg daily reduces fatigue in Hashimoto's patients, with treatment claims of partial/complete regression within hours to days.
Source summary and thread relationship - @lowmegatron · 2026-08-23 original
Web searches and TSH levels show seasonal pattern in Hashimoto's thyroiditis; Ray Peat discusses light exposure and unsaturated fat restriction as winter management; thyroid function increases seasonally, suggesting light and fat composition affect thyroid metabolism.
Source summary and thread relationship - @lowmegatron · 2026-08-24 original
Glucose metabolism is reduced in ADHD-related brain regions; hypothyroidism and thyroid hormone resistance impair brain glucose metabolism; TSH within normal range but elevated correlates with ADHD symptoms and reduced cognitive function in preschoolers; thyroid hormone supplementation restores glucose metabolism in brain regions affected by hypothyroidism.
Source summary and thread relationship - @lowmegatron · 2026-08-24 original
Substantive explanation of hypothyroidism's role in insulin resistance and depression through effects on thyroid hormone T3, cortisol suppression, GluT4 transporter production, and brain glucose metabolism; cites multiple studies on thyroid-insulin-depression mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-08-24 original
Explanation of bidirectional relationship between H. pylori and hypothyroidism: H. pylori lowers stomach acid impairing levothyroxine/NDT absorption; hypothyroidism lowers stomach acid favoring H. pylori growth. Quotes Ray Peat on stomach acid role and cites studies on H. pylori effects on thyroid function and gastric acid secretion.
Source summary and thread relationship - @lowmegatron · 2026-08-24 original
Fact claim that nearly one-third of UK hypothyroid patients on levothyroxine still have elevated TSH, questioning healthcare system performance.
Source summary and thread relationship - @lowmegatron · 2026-08-25 original
Ray Peat quoted on vitamin D and calcium role in reducing parathyroid hormone, restoring mitochondrial energy production and cellular calcium regulation. Embedded post on thyroid hormone and vitamin D effects on mast cell activation, including Ray Peat quotation and study citations on TSH, parathyroid hormone, and mast cell degranulation.
Source summary and thread relationship - @lowmegatron · 2026-08-25 original
TRH increases blood pressure, resting pulse, and prolactin, which can lower testosterone and progesterone. TRH rises when thyroid hormones are low and stimulates TSH. When the thyroid does not adequately respond, TRH remains elevated. The embedded quoted post describes a patient's experience with T3 supplementation improving sleep quality and reducing nocturnal symptoms.
Source summary and thread relationship - @lowmegatron · 2026-08-25 original
Gallbladder dysfunction is common in hypothyroidism due to delayed bile emptying, which can promote gallstone formation. Hypothyroidism is associated with an increased prevalence of common bile duct stones, with a gender-specific relation in males (TSH/gallstone correlation). The embedded quoted post discusses vitamin C's protective effect against gallstones through enhanced cholesterol-to-bile-acid conversion.
Source summary and thread relationship - @lowmegatron · 2026-08-25 own thread
lowmegatron invites readers who want more help understanding hypothyroidism and low thyroid hormone to check out his video course and online community via a link.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Presents the 'brain hypothyroidism' hypothesis that depression and hypothyroidism share clinical features and that low thyroid hormone may cause depression through reduced brain energy. The embedded quoted post introduces a thread on thyroid system's role in depression.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Discusses how TSH of 4 may not indicate optimal thyroid hormone status, particularly T3. Levothyroxine monotherapy suppresses TSH while reducing T3 bioavailability in peripheral tissues. Natural desiccated thyroid (NDT) increases available T3 and reduces anxiety. Low T3 hyperactivates adrenals and increases adrenaline/noradrenaline, contributing to anxiety. T3 optimization (not just TSH optimization) is needed; high T3 also causes anxiety.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Thyroid hormone is the primary driver of metamorphosis. Blocking thyroid function halts metamorphosis while feeding and growth continue, resulting in giant infantile tadpoles. Excess thyroid hormone produces miniature frogs. Historical and experimental evidence from tadpole studies demonstrates this relationship.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Fasting lowers thyroid hormone (T3) while also lowering TSH, causing a differential response in thyroid axis. Standard testing with only T4 and TSH during fasting/calorie restriction gives incorrect clinical impression because T3 conversion drops and TSH/T3 relationship reverses from the assumed pattern. Meta-analysis of 15 studies shows significant reductions in FT3 and total T3, moderate TSH decrease, and no significant FT4 change during fasting.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Correcting hypothyroidism and basal metabolic rate allows patients to tolerate alcohol without ill effects. Dr. Broda Barnes observed that hypothyroid patients unable to drink alcohol due to poor tolerance and hangover could drink freely once thyroid function was corrected. The embedded quoted post discusses pregnenolone's effects on alcohol cravings, stress, and HPA axis in individuals with alcohol use disorder.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Individual differences in alcohol response depend on thyroid activity; alcohol has antioxidant effects but can cause hypoglycemia and pro-oxidative effects. Polyunsaturated fat (PUFA) increases alcohol's oxidative damage through iron-fat reactions. Saturated fat (clarified butter/MCT) reverses alcoholic liver injury better than unsaturated fat through reduced lipid peroxidation and gut barrier tightening. Saturated fat is not peroxidizable and reduces PUFA peroxidation. Thyroid hormone aids liver regeneration.
Source summary and thread relationship - @lowmegatron · 2026-08-26 original
Author presents study findings on TSH vs T3 dynamics in levothyroxine-treated hypothyroid patients, arguing TSH normalization does not reliably indicate T3 normalization, and that routine T3 measurement should be considered despite clinical guideline omissions.
Source summary and thread relationship - @lowmegatron · 2026-08-27 original
Author criticizes a functional medicine doctor for selling AI-generated thyroid content to a patient at high cost, warning about proliferation of low-quality automated health content.
Source summary and thread relationship - @lowmegatron · 2026-08-27 original
Author presents two historical case reports of psychosis secondary to hypothyroidism, resolving with thyroid hormone replacement therapy.
Source summary and thread relationship - @lowmegatron · 2026-08-27 original
Author presents evidence that thyroid hormone suppresses sympathetic nervous system activity; deficient thyroid causes compensatory adrenaline and noradrenaline elevation, contributing to hypertension.
Source summary and thread relationship - @lowmegatron · 2026-08-28 original
Author argues depression is a state of low brain energy caused by insufficient T3, not diagnosis stress; low T3 impairs glucose oxidation, and T3 augmentation of SSRIs shows antidepressant effects correlated with brain bioenergetic normalization.
Source summary and thread relationship - @lowmegatron · 2026-08-28 original
Thyroid hormone accelerates alcohol detoxification and affects neurosteroid production (pregnenolone, DHEA, progesterone, allopregnanolone), which mediate anxiety relief and intoxication effects. Hyperthyroidism markedly increases ethanol metabolism rate.
Source summary and thread relationship - @lowmegatron · 2026-08-28 original
Thyroid hormone and thiamine improve memory and cognition by enhancing glucose utilization in the brain. Emotional arousal also increases glucose availability via stress hormones. Relationship breaks down in diabetes/insulin resistance where high blood glucose correlates with lower glucose oxidation.
Source summary and thread relationship - @lowmegatron · 2026-08-28 original
Thyroid hormone, particularly T3, is a primary regulator of blood cholesterol. Elevated cholesterol often indicates hypothyroidism. T3 therapy produces greater cholesterol reduction (13% LDL, 11% total cholesterol, 18% apolipoprotein B) compared to T4 alone at equivalent TSH suppression, and also reduces body weight via increased metabolic rate.
Source summary and thread relationship - @lowmegatron · 2026-09-01 original
Thyroid hormones regulate ferritin synthesis independent of iron stores; thyroid status affects multiple iron-related biomarkers including ferritin, hemoglobin, transferrin, and TIBC. Reticulocyte hemoglobin may help distinguish thyroid-driven ferritin changes from iron deficiency.
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Thyroid hormone increases ferritin by releasing the brake on ferritin synthesis; ferritin falls when thyroid hormone drops.
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Short sleep (1.5 hours below habitual for 6 weeks) lowered TSH in women without changing FT4. Embedded quote discusses effects of 6-hour sleep on insulin sensitivity and sleep deprivation effects across multiple studies, with review of sleep's role in metabolic health.
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Patient medical notes from 12–13 year levothyroxine user who switched to NDT 120 mg and reported resolution of dry skin, constipation, brain fog, fatigue, cold intolerance, and pain. Post explains NDT contains both T4 and T3 while levothyroxine is T4 only; NDT is prescription with standardized hormone levels, unlike unregulated over-the-counter products.
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Post recount of discussion in which people report psychiatric misdiagnoses caused by undiagnosed hypothyroidism. Includes example of one doctor who refused psychiatric drugs when patient's thyroid hormones were abnormal. Quote: hypothyroidism caused depression resolved by thyroid medication without antidepressants.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person who says thyroid meds helped many things because the thyroid affects every body system, and that they were thrilled to stop anti-depressants.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person who was not diagnosed but says they fit the criteria for depression when hypothyroid, describing a shut-off brain and loss of personality, critical thinking and creativity.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person whose thyroid failed in their late teens. They say they were repeatedly diagnosed with depression and with being fat. At 22, testing revealed congenital thyroid hypoplasia and Hashimoto's. They mention milk production continuing long after nursing stopped.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person who says the first doctor told them they were bipolar, but it was Hashimoto's.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person who was told they had anxiety/depression. They say they got off Lexapro safely once thyroid meds kicked in, and that their panic is much reduced.
Source summary and thread relationship - @lowmegatron · 2026-09-02 own thread
lowmegatron quotes a person who says they once had a TSH of 68 and an endocrinologist noted them as unstable and anxious. Another doctor insisted on SSRIs, which they declined.
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Thyroid hormones play roles in anxiety, depression, and psychosis, yet psychiatric patients often lack thyroid testing. Post discusses case with multiple psychiatrists prescribing psychiatric drugs without thyroid screening. Notes Cymbalta lowers T4 by average 20%; 42% of patients had ≥30% T4 drop; TSH-only screening would miss this effect. Cites postpartum psychosis link to autoimmune thyroid disease (nearly 4× higher, 3× higher clinical dysfunction).
Source summary and thread relationship - @lowmegatron · 2026-09-02 original
Ray Peat quote: Thyroid tends to lower cholesterol by converting it into pregnenolone and other steroids. Embedded quote discusses pregnenolone's effects on skin aging and health; Ray Peat personal account of pregnenolone's dramatic symptom relief from inflammatory conditions and associated facial rejuvenation.
Source summary and thread relationship - @lowmegatron · 2026-09-03 original
Coffee increases T2 (thyroid hormone metabolite) with pro-metabolic effects. Animal studies show T2 reverses liver damage and insulin resistance. Human study finds T2 levels associated with coffee metabolites, suggesting coffee naturally increases T2. Author cautions that T2 reduces thyroid hormones via pituitary feedback; high doses unclear if safe due to T3 suppression and potential cardiac hypertrophy in animals.
Source summary and thread relationship - @1immortals1 · 2026-09-03 original
Iodine is essential for thyroid hormone production; iodine insufficiency (not deficiency) affects ~2 billion people globally and contributes to metabolic slowdown, cognitive impairment, cold intolerance, and hormone-sensitive tissue health. Modern low-salt dietary trends reduced iodine intake after salt iodization eliminated goiters in the 1920s.
Source summary and thread relationship - @lowmegatron · 2026-09-03 original
List of interventions for high histamine including thyroid correction, DAO enzyme, micronized PEA, progesterone, B vitamins, magnesium, L-theanine, copper, vitamins C and E, low PUFA diet, and hypoglycemia avoidance; author notes context-dependent efficacy. Embedded quote details personal PEA experimentation with symptom reduction and extensive research on PEA mechanisms in mast cell modulation.
Source summary and thread relationship - @lowmegatron · 2026-09-07 original
Hypothyroidism increases parathyroid hormone, which can lead to histamine issues, bone issues, and atherosclerotic calcification. Low calcium, magnesium, and vitamin D elevate PTH; vitamin K2 and higher calcium-to-phosphate ratio help prevent soft tissue calcification. Embedded post discusses thyroid hormone, vitamin D, and mast cell activation mechanisms.
Source summary and thread relationship - @lowmegatron · 2026-09-07 original
Author quotes Ray Peat on factors supporting healthier pregnancies and postpartum outcomes, including sunlight, vitamin D, whole foods, thyroid function optimization, and specific hormones and anti-inflammatory medications.
Source summary and thread relationship - @lowmegatron · 2026-09-07 original
Weight loss resistance occurs when extreme calorie deficit suppresses thyroid hormone conversion and resting metabolic rate. Low energy availability abruptly reduces T3 and fT3, and increases fT4 and rT3 at specific thresholds. Increasing energy availability restores thyroid function and can reverse athletic amenorrhea without reducing exercise. Embedded post by lowmegatron discusses thyroid hormone's role in insulin sensitivity and depression.
Source summary and thread relationship - @lowmegatron · 2026-09-07 original
Bioidentical progesterone reduces anxiety and increases pro-social and exploratory behaviors in mice via increased allopregnanolone (5α-reductase metabolite); synthetic progestin (MPA) does not produce this effect because it does not serve as substrate for 5α-reductase. Neurosteroid effects may be relevant to sex differences in neuropsychiatric and neurodegenerative disorders. Embedded post discusses thyroid hormone's role in alcohol detoxification and neurosteroid production.
Source summary and thread relationship - @lowmegatron · 2026-09-07 original
Ray Peat quote and embedded post on allopregnanolone as downstream mechanism of progesterone's mood, seizure and psychosis effects; pregnenolone supplementation (400 mg) proposed to increase allopregnanolone and activate emotion regulation circuits; specific supplement brands mentioned without claimed affiliation.
Source summary and thread relationship - @1immortals1 · 2026-09-08 original
Iodine deficiency caused by shift from iodized table salt to sea salt and Himalayan salt; iodine essential for thyroid T3/T4 production and metabolic function; historical public health success of iodization in 1924 reversed by recent salt trends; recommendations for iodized salt or kelp supplementation.
Source summary and thread relationship - @lowmegatron · 2026-09-08 original
Hypothyroidism alters muscle protein synthesis and breakdown, shifts fiber type, increases catabolic hormones causing muscle weakness and loss; unchanged muscle mass may contain excess water.
Source summary and thread relationship - @lowmegatron · 2026-09-08 original
Coffee drinkers have lower TSH and much lower risk of subclinical hypothyroidism; embedded post attributes extensive caffeine and coffee health benefits to Ray Peat, including thyroid protection, liver protection, cancer prevention, and cognitive effects.
Source summary and thread relationship - @lowmegatron · 2026-09-08 original
TSH within normal reference range associated with significantly increased odds of miscarriage; study citation provided.
Source summary and thread relationship - @lowmegatron · 2026-09-08 own thread
lowmegatron quotes a study's statement that higher TSH was associated with early-pregnancy miscarriage. It says TSH of 2.5 to 4.8 raised risk, and above 4.8 raised it further.
Source summary and thread relationship - @lowmegatron · 2026-09-08 own thread
lowmegatron says the role of subclinical hypothyroidism in habitual abortion was known in the 1920s, quoting a passage that cites Litzenberg (1926) and stresses recognizing and treating it.
Source summary and thread relationship - @lowmegatron · 2026-09-08 own thread
lowmegatron quotes McGavack's The Thyroid, saying thyroid underfunction commonly shows as weight gain, lassitude, dry skin, coarse hair, brittle nails and emotional unrest. The quote states habitual abortion is frequent in such patients, citing Delfs and Jones (1948). It continues a thread on TSH and miscarriage.
Source summary and thread relationship - @lowmegatron · 2026-09-08 original
lowmegatron states that eyebrows can regrow once thyroid hormone levels are corrected. He quotes a paper saying normal telogen-anagen hair relationships were restored with desiccated thyroid replacement, implying thyroid hormone affects hair growth initiation and duration.
Source summary and thread relationship - @lowmegatron · 2026-09-08 original
Hypothyroidism causes nasal congestion through mucous gland enlargement and tissue edema. Quoted account (lowmegatron) explains the mechanism: T3 is required to break down mucopolysaccharides; when T3 is low, these accumulate causing tissue swelling, nasal congestion, voice changes, carpal tunnel syndrome, and joint issues. NDT USP (desiccated thyroid containing T3) differs from levothyroxine (T4 only).
Source summary and thread relationship - @lowmegatron · 2026-09-09 original
Broda Barnes' method of assessing thyroid status via basal temperature, symptoms, and response to desiccated thyroid accounts for hormone conversion and resistance in ways levothyroxine plus blood tests cannot. These markers often reveal insufficient thyroid hormone activity better than blood tests, though blood tests should not be ignored. Distinguishes between thyroid gland function and thyroid hormone status.
Source summary and thread relationship - @lowmegatron · 2026-09-09 original
Lower basal body temperature in hypothyroid patients allows pathogens to take hold. Nasal cavity temperature is lower, enabling cold and flu onset there. Low temperature enhances viral viability and transmission (especially influenza); rhinovirus replicates preferentially at nasal cavity temperature due to less efficient antiviral response at cool temperatures. Temperature of 36.7°C restricts fungal growth. Embedded quoted account cites Broda Barnes on hypothyroidism and immunity in baby rabbits.
Source summary and thread relationship - @lowmegatron · 2026-09-09 original
Aloe vera juice lowers thyroid antibodies (TPOAb) but also lowers free T3 and increases FT4:FT3 ratio, suggesting reduced thyroid hormone conversion. Very limited human data; one case report of a woman with low thyroid hormones (T3 and T4) that normalized upon stopping aloe vera juice, and a thyroid nodule that shrank when discontinued. Recommendation: monitor free thyroid hormones closely if using aloe vera juice. Embedded quoted account provides tips for optimizing thyroid hormone conversion.
Source summary and thread relationship - @lowmegatron · 2026-09-09 original
Hypothyroidism lowers pregnenolone and downstream steroid hormones (DHEA, testosterone, estrogen) with implications for mood, mental illness, reproduction, libido, dementia risk, substance abuse, aging, appearance, and muscle mass. StAR protein shuttles cholesterol into mitochondria to make pregnenolone; thyroid hormone T3 regulates StAR. Study shows serum ADIOLS, ADIOL, DHEAS, DHEA, and pregnenolone sulfate are decreased in hypothyroidism. Embedded quoted account lists hormones derived from pregnenolone.
Source summary and thread relationship - @lowmegatron · 2026-09-09 original
With hypothyroidism, the 'calories in calories out' model must account for T3 effects on resting metabolism. Lower T3 activity reduces 'calories out' (metabolic rate). Insufficient available calories further reduces T4 to T3 conversion. Before applying CICO model, verify T3 optimization via blood test and confirm T3 reaches cells via basal temperature. Embedded quoted account details how severe caloric restriction causes drops in T3 and metabolic adaptation; T3 repletion reverses hypometabolism and restores metabolic rate.
Source summary and thread relationship - @lowmegatron · 2026-09-10 original
Emodin, found in plants like Japanese knotweed root and rhubarb root, lowered thyroid autoimmune markers (TGAb antibodies) and reduced thyroid infiltration in iodine-sensitive mice, increasing T4. Embedded quote notes emodin also inhibits 11β-HSD1 enzyme, reducing local cortisol and improving metabolic markers in obese mice; available as supplement Lapodin (author claims no affiliation).
Source summary and thread relationship - @lowmegatron · 2026-09-10 original
Hypothyroidism increases homocysteine; thyroid hormone replacement lowers it. While most homocysteine-lowering interventions show minimal cardiovascular benefit, Broda Barnes' thyroid therapy method reportedly achieved significant heart attack and stroke reductions. Both Barnes and Kountz cautioned against initiating therapy at high doses in cardiac patients.
Source summary and thread relationship - @lowmegatron · 2026-09-10 original
Hypothyroidism leads to estrogen dominance partly through suppressed progesterone and pregnenolone. Thyroidectomy in animals causes progesterone and pregnenolone levels to drop due to reduced mitochondrial respiration needed for pregnenolone synthesis. Deficiency of active T3 thyroid hormone is the mechanism. Low basal temperature may indicate low T3 despite normal thyroid blood markers.
Source summary and thread relationship - @lowmegatron · 2026-09-11 original
Broda Barnes' claim that 40% of population is hypothyroid cannot be supported by standard definition (thyroid gland failure to release sufficient hormone) or current blood testing. However, since hypothyroid symptoms primarily result from insufficient thyroid hormone stimulation in cells and tissues, standard blood levels and gland function represent only part of the clinical picture.
Source summary and thread relationship - @lowmegatron · 2026-09-11 own thread
lowmegatron says low thyroid hormone activity with a healthy gland and normal blood tests can stem from poor cellular uptake, conversion problems, or thyroid hormone resistance. He notes Mark Starr's term "type II hypothyroidism" and says the percent affected is hard to determine.
Source summary and thread relationship - @lowmegatron · 2026-09-11 own thread
lowmegatron says Barnes treated patients with NDT, which he says gets around many conversion issues because it contains some T3. He says Barnes diagnosed based on basal temperature, signs and symptoms, and response to an NDT trial. The author claims basal temperature reflects cellular thyroid hormone activity and can reveal what blood tests miss.
Source summary and thread relationship - @lowmegatron · 2026-09-11 own thread
lowmegatron says that in the 1930s G. K. Wharton reported improvements in a long list of symptoms (migraine, menstrual irregularities, dry skin and hair, acne, fatigue, low libido and others) in cases of hypothyroidism that the standards of the day did not recognize. The parent posts discuss Barnes, NDT and basal temperature, but this post does not itself mention them.
Source summary and thread relationship - @lowmegatron · 2026-09-11 original
Thyroid hormones and TSH fluctuate throughout the day with circadian rhythm; testing at consistent times improves result reliability. FT3 shows delayed circadian rhythm parallel to TSH, suggesting thyroid-derived T3 contribution.
Source summary and thread relationship - @lowmegatron · 2026-09-11 original
Caloric restriction and fasting reduce tissue uptake of thyroid hormones, with T4 transport more affected than T3. This tissue-level effect may underestimate problems during stress. Embedded quote expands on multiple causes of tissue-level hypothyroidism beyond blood tests.
Source summary and thread relationship - @lowmegatron · 2026-09-11 original
TSH shows pronounced circadian rhythm: highest at 7am, lowest at 1pm (women) or 2pm (men), then rises at 4pm. Same patient can appear normal or hyperthyroid depending on sampling time. Embedded quote critiques blood-based thyroid testing and contrasts with historical symptom-based diagnosis methods.
Source summary and thread relationship - @lowmegatron · 2026-09-12 original
Skin-to-skin contact halves cortisol in NICU preterm infants while increasing melatonin, providing strong evidence that contact ameliorates NICU-related stress. Embedded quote from Ray Peat on healthier pregnancy factors including sunlight, nutrition, thyroid optimization, and hormonal support.
Source summary and thread relationship - @lowmegatron · 2026-09-12 original
Minimal post sharing quoted phrase 'T3 signals abundance' attributed to user sluttysuzy420, with embedded quote to another user (BerbarianWizard) that contains only a URL.
Source summary and thread relationship - @jamesbondwisdom · 2026-09-12 original
jamesbondwisdom claims thyroid dysfunction, both hypo- and hyperthyroidism, causes diffuse hair loss that is reversible once corrected, and that dermatologists rarely check it. It says T3 controls anagen duration. It argues that TSH alone misses subclinical dysfunction, recommends a full panel (TSH, free T3, free T4, TPO and TG antibodies), and asserts an optimal TSH of 1.0-2.0.
Source summary and thread relationship - @lowmegatron · 2026-09-13 original
Thyroid extract historically used for migraine; high estrogen associated with migraine. Broda Barnes found low basal temperature in migraineurs; NDT or combination thyroid therapy corrected temperature and resolved migraines in most cases. Thyroid and sex hormone irregularities do not account for all migraine causes.
Source summary and thread relationship - @lowmegatron · 2026-09-13 original
Vitamin C improves levothyroxine absorption, lowers TSH, and improves quality of life in hypothyroid patients requiring high-dose levothyroxine, per proof-of-concept pilot study.
Source summary and thread relationship - @lowmegatron · 2026-09-13 original
Artificial sweeteners from anti-sugar messaging may cause thyroid issues; aspartame alters pituitary-thyroid axis and disrupts thyroid follicular structure, reducing hormone production; sucralose downregulates thyroid axis in rodents, lowering TPO enzyme, TSH, and T3/T4.
Source summary and thread relationship - @lowmegatron · 2026-09-13 own thread
lowmegatron quotes a case report of a 52-year-old woman whose Hashimoto's was attributed to excessive non-nutritive sweetener beverages. The quote says TSH and antibody levels quickly normalized after she stopped the sweeteners.
Source summary and thread relationship - @lowmegatron · 2026-09-13 own thread
lowmegatron quotes a rat study, 'Type of sweet flavour carrier affects thyroid axis activity in male rats'. It reports that, compared with sucrose, sucralose lowered TPO activity, T4 and T3. In the non-sweet diet, DIO1 was lowest and rT3 highest, indicating altered peripheral thyroid hormone metabolism.
Source summary and thread relationship - @lowmegatron · 2026-09-14 original
Night blindness can signal thyroid hormone insufficiency; thyroid hormone resistance reduces electrical signal in light-sensing rods; strong natural light triggers thyroid hormone conversion in the eye.
Source summary and thread relationship - @lowmegatron · 2026-09-15 original
Case report of chronic nasal congestion (40 years) cleared with thyroid hormone. Explains mechanism: low thyroid hormone causes tissue swelling (edema) in nasal cavity and elsewhere (skin puffiness, constipation, voice changes, joint damage, carpal tunnel). Cites study on thyroid hormone receptors in nasal mucosa.
Source summary and thread relationship - @lowmegatron · 2026-09-15 original
Historical account of Chinese thyroid treatment in 652 AD using seaweed and thyroid gland-containing animal parts ('yeh'). Notes iodine deficiency as historical context. Embedded quote discusses Natural Desiccated Thyroid (NDT) formulations, T4/T3 ratios, mechanism, and brand comparisons.
Source summary and thread relationship - @lowmegatron · 2026-09-15 original
Lists associations between low serum magnesium and thyroid conditions: subclinical hypothyroidism, Hashimoto's disease, hypothyroidism, TGAb positivity, higher TPOAb, increased thyroid vascularity. Cites study showing low vitamin D and magnesium associated with goiter, functional thyroid disorders, and thyroid antibody positivity. Embedded quote provides epidemiologic data on magnesium deficiency and thyroid disease risk.
Source summary and thread relationship - @lowmegatron · 2026-09-15 original
Small study (N=11) showing magnesium supplementation alone lowered TSH from 7.6 to 2.6 over 6 weeks in patients with subclinical hypothyroidism (normal T4, elevated TSH), resulting in normalization. Includes normal thyroid ultrasound. Embedded quote discusses magnesium's association with thyroid conditions.
Source summary and thread relationship - @lowmegatron · 2026-09-15 original
Animal experimental studies showing magnesium depletion lowers T4 and increases thyroid weight in rats. Magnesium supplementation partially corrects TSH and T3 reductions in diabetic untreated animals. Cites two PMIDs from experimental animal research.
Source summary and thread relationship - @lowmegatron · 2026-09-16 original
Ray Peat and Ivor H. Mills (Professor of Medicine, Cambridge) both documented individuals with metabolic efficiency who maintain body weight on very low calorie intakes (600-700 kcal/day), and conversely some with high metabolic rates who fail to gain weight on 3500 kcal/day. Effect attributed to thyroid hormone influence on metabolism.
Source summary and thread relationship - @lowmegatron · 2026-09-16 own thread
lowmegatron quotes Ray Peat saying that doctors followed a textbook claim that anyone loses weight below 1700 calories. Peat says a ward study found some women, especially chronic dieters, maintained weight on 700 calories due to adaptations to poorly balanced dieting.
Source summary and thread relationship - @lowmegatron · 2026-09-16 original
Case presentation of 39-year-old woman with nasal congestion, throat tightness, swollen eyes, and persistent flu-like symptoms for months, plus cold intolerance, constipation, weight gain. Diagnosed with hypothyroidism and treated with levothyroxine 150 mcg. All symptoms resolved by 12 weeks. Embedded quoted post explains mechanism: thyroid hormone receptors in nasal mucosa cause edema and inflammation when thyroid hormone is low.
Source summary and thread relationship - @lowmegatron · 2026-09-16 original
Hypothyroidism should be considered in differential diagnosis of upper airway obstruction, asthma, sleep apnea, allergic rhinitis, and urticaria/angioedema. Hypothyroidism called 'The Great Pretender' for ability to mimic many diseases. T3 thyroid hormone has central role in energy production; when energy drops, symptoms appear. Allergic-type symptoms downstream of thyroid issues are common and often overlooked. Embedded quoted post references case of 40-year chronic nasal congestion resolved with thyroid hormone.
Source summary and thread relationship - @lowmegatron · 2026-09-16 original
Ray Peat stated magnesium retained in cells under ATP and thyroid influence acts as calcium antagonist. Magnesium can reverse soft tissue calcification. Study of 80 calcification patients treated with local MgSO4 injection and oral magnesium lactate: 75% cured with calcifications disappearing or diminishing substantially over 2-20 weeks treatment.
Source summary and thread relationship - @lowmegatron · 2026-09-17 original
Hypothyroidism increases susceptibility to various infections (SIBO, candida, shingles, TB, pneumonia) due to insufficient energy production; thymic atrophy from low thyroid hormone, estrogen, and cortisol reduces T-cell production.
Source summary and thread relationship - @lowmegatron · 2026-09-17 original
Hypothyroidism increases candida infection risk through estrogen dominance, reduced glucose metabolism, and lowered IgA; case example of mucocutaneous candidiasis resolving after thyroid hormone replacement.
Source summary and thread relationship - @lowmegatron · 2026-09-17 original
Thyroid hormone influences herpes zoster (shingles) outbreak severity; hypothyroidism increases recurrence risk; thyroid hormone replacement therapy reduces shingles risk by 40%.
Source summary and thread relationship - @lowmegatron · 2026-09-17 original
T3 thyroid hormone suppresses HSV-1 (cold sore virus) replication by inhibiting viral gene expression; hypothyroidism results in increased viral replication and reactivation.
Source summary and thread relationship - @lowmegatron · 2026-09-17 own thread
lowmegatron says shingles, cold sores and genital herpes infection and reactivation are more common in hypothyroidism, with higher risk in women. He quotes data giving an odds ratio of 3.40 for females aged 21 and over versus 1.91 for males, which the study authors suggest may reflect hormonal alteration.
Source summary and thread relationship - @lowmegatron · 2026-09-17 original
Multiple overlooked factors contribute to insulin resistance beyond diet and exercise, including carrageenan, thyroid hormones, minerals, stress, endotoxin, light exposure, vitamins, sleep, and movement.
Source summary and thread relationship - @lowmegatron · 2026-09-18 original
Magnesium can reverse subclinical hypothyroidism in people without thyroid disease. Magnesium depletion lowers T4, inhibits iodine uptake, and increases thyroid volume in animal studies. Citation provided showing TSH normalization after magnesium supplementation.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron quotes a study saying Mg-deficient rats had lower weight gain, lower plasma T4 and Mg, and a relatively heavier thyroid gland.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron quotes a rat study (PMID 4133501) reporting a close positive correlation between serum magnesium and thyroid activity as measured by radioiodide handling. Magnesium deficiency or loading did not change thyroid cyclic AMP or hormone release in vitro. Radioiodide accumulation was stimulated by magnesium loading and inhibited by deficiency. The post is a continuation of a thread arguing that magnesium depletion harms thyroid function.
Source summary and thread relationship - @lowmegatron · 2026-09-18 original
Hypothyroidism causes poor circulation partly due to cold extremities. Correcting thyroid hormone levels improves circulation. T3 restores euthyroid state and normalizes peripheral vascular resistance. Citation provided showing 46% of resistance changes explained by T3.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron quotes a paper stating that overt hypothyroidism is associated with decreased cutaneous microvascular blood flow. The author interprets this as reduced small-vessel skin blood flow causing pallor and colder extremities.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron says Broda Barnes noted thyroid effects on circulation decades ago. The quoted passage from Barnes's book claims severe hypothyroidism can reduce circulating blood per minute by as much as 40 percent, that even mild reductions impair tissue oxygen delivery, and that this contributes to fatigue and poorer mental function. These are Barnes's claims as quoted.
Source summary and thread relationship - @lowmegatron · 2026-09-18 original
Chronic stress downregulates thyroid axis adaptively; stress-lowering approaches like yoga can improve thyroid hormones and correct TSH feedback. Quotation attributed to author discussing stress-induced thyroid suppression as hibernation-like adaptation.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron quotes a study (PMID 31563038) stating that acute psychosocial stress elicits a significant increase in TSH. The quote says this is relevant to stress-related illnesses with hypothalamic-pituitary-thyroid axis abnormalities.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron quotes a study (PMID 29540811) reporting that T3, T4, fT3 and fT4 were decreased in a chronic stress group. The authors of the quoted study interpret this as thyroid dysfunction induced by long-term combined stress.
Source summary and thread relationship - @lowmegatron · 2026-09-18 own thread
lowmegatron reports a randomized trial in hypothyroid women in which yoga was followed by T3 up 17%, T4 up 7% and TSH down 26%. He also quotes a review saying four studies indicated yoga improved hypothyroidism by lowering TSH and levothyroxine doses and raising T3 and T4. The quoted context is a Ray Peat quote that stress hormones lower thyroid hormone conversion, so TSH alone cannot diagnose.
Source summary and thread relationship - @lowmegatron · 2026-09-19 original
Optimal thyroid hormone production requires adequate caloric and carbohydrate intake; repost of quoted account citing starvation increases reverse T3, carbohydrate restriction lowers T3, exercise while starved worsens thyroid suppression, with PMID citations.
Source summary and thread relationship - @lowmegatron · 2026-09-19 original
Lowering TSH can unblock nasal congestion by reducing mucopolysaccharide production in turbinates and subcutaneous tissue; treatment of hypothyroidism resolves nasal obstruction; quoted post details NOSE and PNIF measurements showing 100% congestion relief in 1 month and 11-21% airflow improvement; PMID cited.
Source summary and thread relationship - @lowmegatron · 2026-09-21 original
Low blood sugar causes two distinct symptom clusters: neurogenic symptoms from sympathoadrenal activation (anxiety, tremors, palpitations, hunger, sweating, paresthesias) and neuroglycopenic symptoms from nervous system glucose deficiency (confusion, fatigue, seizure, coma, death). Quoted post details hypothyroidism as cause of hypoglycemia and related symptoms.
Source summary and thread relationship - @lowmegatron · 2026-09-21 original
Glucose metabolism and intelligence are related; variations in learning, memory and problem-solving reflect metabolic differences. IQ correlates strongly with cerebral blood glucose level, brain size, and glucose assimilation after glucose load. Research from 1936 shows basal metabolic rate and thyroid function correlate with intelligence in children.
Source summary and thread relationship - @lowmegatron · 2026-09-21 original
Progesterone increases expression of genes the thyroid uses for iodine uptake, hormone synthesis and growth. This effect is progesterone-receptor-dependent. Evidence shows free T4 increases and TSH tends lower during progesterone treatment in women.
Source summary and thread relationship - @lowmegatron · 2026-09-21 own thread
lowmegatron quotes Ray Peat as saying there is an 'anti-sugar cult' and that sugar craving is usually caused by a need for sugar, generally caused by hypothyroidism. The claim is Peat's, presented without supporting data.
Source summary and thread relationship - @lowmegatron · 2026-09-22 original
Type II Hypothyroidism describes hypothyroid symptoms despite normal lab thyroid levels, reflecting insufficient tissue-level thyroid hormone activity; basal body temperature assessment combined with labs and symptoms provides more reliable thyroid sufficiency evaluation.
Source summary and thread relationship - @lowmegatron · 2026-09-22 own thread
lowmegatron says anxiety and depression are associated with a later chronic fatigue syndrome diagnosis, and that high serotonin in a brain region promotes anxiety and fear in rodents. The quoted earlier post from the same author claims chronic fatigue syndrome is often hypothyroidism, citing a quoted study of lower free T3 and a T3-to-rT3 shift in CFS patients. The post's own text does not make that thyroid claim.
Source summary and thread relationship - @lowmegatron · 2026-09-23 original
Urinary T3 concentrations differ between levothyroxine and NDT (natural desiccated thyroid); NDT restores urinary T3 to healthy levels and reduces hypothyroid symptoms 2.5-6.5× more than levothyroxine. Shares quoted research on symptom comparisons and NDT dosing protocols.
Source summary and thread relationship - @lowmegatron · 2026-09-23 original
GABAergic substances may suppress TSH-stimulated thyroid hormone release and lower thyroid hormones through modulation of GABA; complex HPT axis relationship warrants caution in people with suboptimal thyroid levels using GABAergic compounds.
Source summary and thread relationship