Glutathione, A Powerful Antioxidant Indigo Health 10 Natural Ways to Increase Your Glutathione Levels 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, Because glutathione levels decline as you age, and glycine can help slow the glutathione slide, it's a good idea to keep your levels high by eating protein rich foods, like organic poultry, grass fed What Is Glutathione? Health Benefits, Risks, and More The 7 Best Glutathione Foods Foods Highest in Glutathione