If t3 supplementation is low enough <25mcg, does the thyroid continue to function?
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If t3 supplementation is low enough <25mcg, does the thyroid continue to function?
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@RawGoatMilk88 The thyroid will not be suppressed even at higher doses. If natural production slows its only acutely and will return after 2-3 weeks
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I took 25mg T3 for just over 3 months, after I stopped I experienced slight hypothyroidism for about a week before things returning to normal. My thyroid function has improved compared to before taking T3.
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@RawGoatMilk88 said in If t3 supplementation is low enough <25mcg, does the thyroid continue to function?:
If t3 supplementation is low enough <25mcg, does the thyroid continue to function?
Given what Ray said below, I doubt it’s enough to fully suppress the thyroid:
“As long as it's divided so that you don't get a big dose of T3 all at once it should be o.k. to take a total of 25 mcg T3 and 100 of T4. That would be similar to the traditional 2 grain dose of Armour thyroid. A healthy person should produce the equivalent of about four grains per day, so with 2 grains of supplement, or the equivalent, there isn't a risk of over-dosing.”
However, even if it did, Ray said this:
“Experimenters using isotopes gave large doses of thyroid until the subjects' glands were completely shut off, and when they stopped giving the doses, everyone's gland returned to normal activity in just 2 or 3 days. The gland is extremely quick to adjust its activity, both up and down, except when it's inhibited by stress, or PUFA, or estrogen, etc.”
https://raypeatforum.com/wiki/index.php/Ray_Peat_Email_Exchanges#Thyroid_Hormones
