Author Archives
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Reverse T3 in the context of health status, dosages, and thyroid levels
A collection of research graphs and quotations showing diverse Reverse T3 levels coexisting with health, in various illnesses, and alongside various T3 and T4 levels.
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Gullo: LT4 monotherapy and thyroid loss invert FT3 and FT4 per unit of TSH
In 2011, Gullo’s research team published a landmark study in thyroid therapy titled “Levothyroxine Monotherapy Cannot Guarantee Euthyroidism in All Athyreotic Patients.” Gullo and colleagues examined the TSH, FT3 and FT4 levels and the FT3:FT4 ratios of 1,811 thyroidless patients… Read More ›
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Normal FT3:FT4 thyroid hormone ratios in large populations
A normal ratio of Free T3 (FT3) to Free T4 (FT4) thyroid hormones appears to be a basic principle in thyroid hormone economy when no thyroid hormone dosing and no disease interfere. When measured in pmol/L, the ratio is consistent… Read More ›
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Prevalence rates for 10 chronic disorders at various FT4, TSH and FT3 levels
Which FT3, FT4 and TSH levels have the highest and lowest prevalence rates for 10 common health disorders? Hypertension Hyperlipidemia (high cholesterol) Depression Diabetes Coronary artery disease Heart failure Atrial fibrillation Peripheral vascular disease Renal failure (kidney failure) Dementia Is… Read More ›
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Anderson, 2020: Thyroid hormones and atrial fibrillation
Atrial fibrillation is a cardiac rhythm disorder that significantly elevates the risk of stroke as well as stroke severity. Thyroid hormone excess caused by hyperthyroidism is often named as one of the risk factors for atrial fibrillation. However, it does… Read More ›
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Mimicry: The idol of T3-T4 combo therapy 2004-2014
They say that history is written by the victors. Not always. Sometimes histories are written by advocates for the oppressed and disenfranchised. A common theme on our website is the need to see current practices and thyroid therapy challenges in… Read More ›
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The foundations of synthetic T3-T4 therapy in the 1990s
A trend in thyroid therapy, sparked by a 1995 rat study, attempted to mimic a narrowly estimated T3:T4 ratio secreted by human thyroid glands. This trend was based on a theory of pharmaceutical mimicry of “the” thyroid gland. Its proponents… Read More ›
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Meet a person with the perfect T3:T4 thyroid secretion ratio
I would like to introduce you to Subject #7, the only person in Pilo’s 1990 study who had a thyroid secretion ratio of 14.5 parts T4 to 1 part T3, which was closest to the statistical average of 15.87 to… Read More ›