Glutathione, the Underrated Antioxidant You Need in Your Diet 7 Powerful Natural Sources of Glutathione for Optimal Health 10 Foods That Contain Glutathione Core Med Science Glutathione is known as the master antioxidant. This critical compound protects cells from damage caused by free radicals and toxins, supports detoxification, plays a key role in DNA synthesis and repair, Sulfur rich foods support glutathione,an intracellular antioxidant that helps cells detoxify. #plantbased