Category Archives: rT3/T3-only

Reverse T3 Ratio – Should it be Greater than 20?

Some thyroid internet groups insist that a reverse T3 (rT3) ratio > 20 is required for good health.  The ratio is the calculation of Free T3/Reverse T3.  The problem is, very few people can meet that ratio, so nearly everyone … Read More

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High T3 Levels affect Memory, Language, and Math Ability

Can’t remember anything lately?  Having problems recalling the right words or performing simple math like adding and subtracting?  Taking longer to perform simple cognitive tasks?  You may be on too much T3 if you’re on a high dose of desiccated … Read More

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High T3 May Induce Insulin Resistance and High Blood Sugar

The T3-only protocol and/or high doses of desiccated thyroid can cause high blood sugar, which causes A1C to rise to levels that warrant treatment.  Thyroid levels, both too high or too low, have a direct impact on blood glucose.  High … Read More

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T3-only or Hydrocortisone (HC) Treatment May Induce Osteoporosis

The T3-only protocol often results in high SHBG levels, and high SHBG is correlated with poor bone mineral density, osteoporotic fractures of the vertebra and peripheral bones (especially the femur or thigh bone) [14], and hip fractures [19].  SHBG appears … Read More

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Desiccated Thyroid contains T4, T3, and rT3, but little T2 or T1

Myth:  Natural Desiccated Thyroid is superior to T4 meds because it contains the same hormones that your own thyroid would produce–T4, T3, T2, T1 and calcitonin.  I have heard some variation of this statement on nearly every thyroid forum, and … Read More

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T3 Overdosing–Do You Know the Symptoms?

From:  http://tiredthyroid.com/rt3.html These are symptoms that anyone on T3-only therapy should be aware of, and are actually classic symptoms of hyperthyroidism.   Hypothyroidism presents with some of these same symptoms, so it can be difficult for patients to tell whether they … Read More

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Normal Heart Rate – Thyroid Fallacies Perpetuated on the Internet

Some thyroid internet groups say a normal heart rate is between 80-100 beats per minute (bpm). Most people consider this to be a “hyper” heart rate, and Graves’ patients will usually have their anti-thyroid meds increased if their heart rate … Read More

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Reverse T3 and T3-only Treatment

From:  http://tiredthyroid.com/rt3.html Recent research in cellular and molecular biology shows that: rT3 does not block the receptor at all; neither rT3 nor T3 is in the receptor, that’s the problem It doesn’t take 12 weeks to “clear” because there is … Read More

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