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 Integrated systems approach to thyroid function.Abbreviations used: Download Scientific Diagram Congenital hypothyroidism alters the oxidative status, enzyme activities and morphological parameters in the hippocampus of developing rats ScienceDirect Drug delivery systems for thyroid disease treatment: A mini review on current therapies and alternative approaches ScienceDirect