I used to be on Armour & Westhroid (natural too) both have hi t3 pig thyroid as opposed to human which is lower ratio. t4 might be in okay range but t3 will be hi - this is my experience - just be careful
The proportion of T3 to T4 in Armour is higher than a normal human thyroid. Therefore normal results may show high normal T3 and low normal T4.
I don't know much about Armour, but isn't it mostly T3 hormones? Or has T4 and T3, or something like that?
I forget.
Well, it gets you back on page one. :)