Okay, does anyone know what this means? GPX means glutathione peroxidase. Does it mean that someone with hashi can take Iodine as long as they take selenium? I got this from the ithyroid site.
We've all heard that many doctors tell hypo patients, especially those with Hashimoto's thyroiditis, not to take Iodine because it can aggravate their condition. The reason seems to be that selenium protects the thyroid gland from oxidative damage and this damage can increase significantly if Iodine is supplemented. Taking iodine will increase thyroid hormone production and the production of H2O2 (Hydrogen-Peroxid) which damages the thyroidal cells. The lack of selenium prevents GPX from being able to protect the cells from this oxidative damage. While I doubt if most doctors realize why iodine should be restricted (it certainly seemed counter-intuitive to me at first), they have learned through experience that iodine can increase the thyroid damage in Hashimoto's. The information that selenium should be supplemented along with iodine is so new that most of them are unaware of it.