Ameliorative effect of Aloe gel against L T4 induced hyperthyroidism via suppression of thyrotropin receptors, inflammation and oxidative stress Molecular Biology Reports Springer Nature Link This one antioxidant is ULTRA important for your thyroid function Glutathione is our body's master antioxidant meaning it's the most important and abundant one. As it relates to the thyroid, think Glutathione 500 mg Plus 21st Century Vitamins 21st Century Vitamins Glutathione 500 mg Plus 21st Century Vitamins 21st Century Vitamins Frontiers Selenium in the Treatment of Graves' Hyperthyroidism and Eye Disease