OXIDATIVE STRESScan contribute to hypothyroid symptoms When the body has to deal with too much Oxidative Stress from inflammation, then the enzyme Glutathione Peroxidase [GPx] has to work overtime to inactivate damaging " Glutathione Function in the Body 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 Oxidative stress in Hashimoto's thyroiditis: possible adjuvant therapies to attenuate deleterious effects Molecular and Cellular Biochemistry Springer Nature Link Iodine Linus Pauling Institute Oregon State University