Foods With L Glutathione: Avocado, Watermelon, and More GoodRx One of the most potent antioxidants your body makes is glutathione, a.k.a. the mother of all antioxidants. Every cell in your body contains glutathione and its main job is to protect your Skin's Glow With These Foods Rich In Glutathione ToneOpCare Natural Ways to Increase Your Glutathione Levels Sulfur rich foods support glutathione,an intracellular antioxidant that helps cells detoxify. #plantbased