2) Pharmaceutical FT3 and FT4 are not the same as desiccated thyroid
. Got it!
3) There is a practical difference between FDA-approved (Armour
), and OTC (Natural Sources) desiccated thyroid. I understand that one is porcine, and the other is bovine; that one is of approved quantity/quality, while the other is not. But is there any other practical difference?
4) (Reasonable, as directed) desiccated thyroid use has drawbacks. This is my primary question and it has not been answered.