What is glutathione? How to increase glutathione in the body? Glutathione: The Master Antioxidant Core Med Science Which foods are highest in glutathione ? Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Dr. Your body produces one of its most powerful antioxidants: glutathione. But it needs the right nutrients to support its production. Glutathione helps neutralize free radicals, supports natural detoxification processes, and Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification