Question: what is the difference between nature thyroid and synthroid?
Answer: Synthroid is just a T4 hormone that is a medication. It requires prescription, and your own thyroid gland makes this naturally. T4 is not active in the body, it has to be processed and turned into T3 which does all the good stuff. Armour Thyroid is an NDT drug, which stands for Natural Desiccated Thyroid.