The 7 Best Glutathione Foods Foods Highest in Glutathione Glutathione, The Master Detox Molecule, Supports Immune Defenses Healthy Goods Glutathione, the Underrated Antioxidant You Need in Your Diet 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, Glutathione facts: 1. Glutathione is an important antioxidant in the body that helps protect cells from damage caused by free radicals. It is found in almost every cell and is composed of