Joe, I can comment on the Ashwaganda herb, but only as it relates to adrenal issues, since this and thyroid is what I am treating along with the mercury thing.

It was recommended to me in order to level out the cortisol (hyrdocortisone) I am taking for adrenals right now. What I noticed is since I started taking this and Siberian Ginsing it does work in leveling out the HC so I don't feel so jittery (like I need it) when the next dose is due. I really DO feel the difference and am starting to feel better every day.

Hope this helps,
Gabriella