Lao Tzu
New member
This is what i understand about T3:
10 hour half life
body needs 35-50mcg of T3 a day for 'normal' functioning
dieting causes the enzyme that converts T4 into T3 to not work as well
Hypothyroidism is not due to 0% T3 production, but production that is only about 60% as high as it should be
alright. Im going to increase calories on my diet to about 3200, but i dont think it will be enough. And i dont have alot of faith in stuff like selenium to compensate fully so i want to start augmenting with T3. HOWEVER, i do not want to shut my own thyroid down and i do not want to supercharge my metabolism. I just want my metabolic rate to be normal, even 90% of normal is acceptable.
Since it takes 35-50mcg a day for normal metabolic functions, and i assume i am making 25-35mcg a day, would a 12.5mcg dose combined with thyroid meds like selenium cause any shutdown of my own thyroid? I would assume those 2 combinations (12.5mcg T3 and selenium) might bring my T3 levels up to about 45mcg a day, which is essentially normal. However i am pretty sure ive heard from people knowledgable about T3 that 12.5mcg doesn't do anything. Maybe they said 12.5 doesnt shut down the thyroid. i dont know.
Also, would i need to taper up and down if i used 12.5mcg? Like would i need 6.25mcg for a week before and after i do the T3 or would the changes be negligible enough to not matter?
Also, due to the 10 hour half life do you dose twice daily or just once in the morning?
i dont know if my thyroid is screwing up or not, but i figure its better to experiment and see than to do nothing.
10 hour half life
body needs 35-50mcg of T3 a day for 'normal' functioning
dieting causes the enzyme that converts T4 into T3 to not work as well
Hypothyroidism is not due to 0% T3 production, but production that is only about 60% as high as it should be
alright. Im going to increase calories on my diet to about 3200, but i dont think it will be enough. And i dont have alot of faith in stuff like selenium to compensate fully so i want to start augmenting with T3. HOWEVER, i do not want to shut my own thyroid down and i do not want to supercharge my metabolism. I just want my metabolic rate to be normal, even 90% of normal is acceptable.
Since it takes 35-50mcg a day for normal metabolic functions, and i assume i am making 25-35mcg a day, would a 12.5mcg dose combined with thyroid meds like selenium cause any shutdown of my own thyroid? I would assume those 2 combinations (12.5mcg T3 and selenium) might bring my T3 levels up to about 45mcg a day, which is essentially normal. However i am pretty sure ive heard from people knowledgable about T3 that 12.5mcg doesn't do anything. Maybe they said 12.5 doesnt shut down the thyroid. i dont know.
Also, would i need to taper up and down if i used 12.5mcg? Like would i need 6.25mcg for a week before and after i do the T3 or would the changes be negligible enough to not matter?
Also, due to the 10 hour half life do you dose twice daily or just once in the morning?
i dont know if my thyroid is screwing up or not, but i figure its better to experiment and see than to do nothing.

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