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 Hashimoto's Thyroiditis Endotext NCBI Bookshelf Can MTHFR affect your thyroid and cause of Hashimoto's disease? Oxidative stress in Hashimoto's thyroiditis: possible adjuvant therapies to attenuate deleterious effects Molecular and Cellular Biochemistry Springer Nature Link Glutathione Deficiency Symptoms: Is Poor Sleep Just the Beginning? Cardiology & Neurology Specialists located in Queens, Forest Hills and Brighton Beach, Brooklyn, NY Advanced Medical Care Nutritional Management of Thyroiditis of Hashimoto