
Originally Posted by
ata1979
T4 is the precursor to T3, if your thyroid is functioning well you dont need T3 cuz your body will turn the T4 into T3. The dangers of T3/T4 are very rarely talked about here and people get the impression that its safe when in reality it can really shut your thyroid down...and for good. When your thyroid shutsdaown its not like hpta. You can restart hpta with hcg, nolvadex etc... but the thyroid, once shutdown could stay that way and you will become dependent on Thyroid medication for the rest of your life. I'm not talking outta my ass I'm talking from personal experience.