T4 is an excellent fat burner since your metabolism is greatly increased while being on it. With T4 you can afford to be a little sloppier on precontest dieting since it will still burn fat when you are taking in a lot of calories since your metabolism is going haywire.
When T4 is taken with Spir..
T4 is an excellent fat burner since your metabolism is greatly increased while being on it. With T4 you can afford to be a little sloppier on precontest dieting since it will still burn fat when you are taking in a lot of calories since your metabolism is going haywire.
When T4 is taken with Spir..
Levothyroxine is a synthetic form of thyroxine (T4), an endogenous hormone secreted by the thyroid gland, which is converted to its active metabolite, L-triiodothyronine (T3). T4 and T3 bind to thyroid receptor proteins in the cell nucleus and cause metabolic effects through the control of DNA trans..