How much T4 does a normal functioning thryoid make in say a 30 year old male?

[M302_Imola]

What I am after is the supplemental T4 dose that would equal that of a healthy 30 year old male's endogenous T4 production? I'm assuming it's between 75-100mcg of supplemental T4. I know that a replacement dose of 25mcg of T3 is said to produce close to what a normal functioning thyroid would endogenously.

[songdog]

I would hit Bonaparte up with that.He is good with that shit.

[jimmyinkedup]

100 mcg ....

[jimmyinkedup]

100 mcg ....

Hey M302 - How you been bro ?
BTW this is just an educated guess based on conversion to t3 and thyroid hrt dosages. There are coversion limitations when it comes to t4 converting to t3 (contrary to what the idiot AR says) so I cant say 100% .... This may be accurate "textbook" info but real life based on conversion limitations im not sure...

[M302_Imola]

Hey M302 - How you been bro ?
BTW this is just an educated guess based on conversion to t3 and thyroid hrt dosages. There are coversion limitations when it comes to t4 converting to t3 (contrary to what the idiot AR says) so I cant say 100% .... This may be accurate "textbook" info but real life based on conversion limitations im not sure...

What's up bro? I've been pretty good how about u? I figured the dose was right around 100mcg...thanks for the info and take care.

[Bonaparte]

What I am after is the supplemental T4 dose that would equal that of a healthy 30 year old male's endogenous T4 production? I'm assuming it's between 75-100mcg of supplemental T4. I know that a replacement dose of 25mcg of T3 is said to produce close to what a normal functioning thyroid would endogenously.

Sounds about right.
And bear in mind that the thyroid's negative feedback loop is not nearly as sensitive as the HPTA's, so even once you start supplementing with T3 or T4, you'll still be getting that dose, plus some natural thyroid hormones for a good while (don't ask me how long). It isn't like an AAS cycle where you just discount your own test production.

[gixxerboy1]

i have a thyroid problem. So im prescribed t4. I take 50mcgs and im in the normal range.

[M302_Imola]

Sounds about right.
And bear in mind that the thyroid's negative feedback loop is not nearly as sensitive as the HPTA's, so even once you start supplementing with T3 or T4, you'll still be getting that dose, plus some natural thyroid hormones for a good while (don't ask me how long). It isn't like an AAS cycle where you just discount your own test production.

Good info on the thyroid's negative feedback loop, I just assumed there would be total shutdown upon exogenous supplementation.

i have a thyroid problem. So im prescribed t4. I take 50mcgs and im in the normal range.

Thanks for the info! I have taken 100mcg of T4 once before for a two week period and leaned out a lot (of course I was on some AAS as well). Next time I use I might try to start w/ 50mcg or 75mcg because 100mcg sped my BMR up quite a bit (maybe too much to stay gain lean muscle).