Re: You and Your Thyroid

"Glutathione peroxidase’s role is to protect more than your thyroid from peroxide damage; in fact, it has this anti-peroxide duty throughout your body. It appears that the liver-which acts as the defender of the body from invaders from the gut-has been given priority status to sequester glutathione peroxidase enzyme from the rest of the body when needed."

Aside from NAC, what do you consider to be the definative glutathione peroxidase contributor to the body, Newport?