Glutathione is such an important antioxidant in human physiology, meaning it acts to combat oxidative stress. Strategies for increasing glutathione include: Consume sulfur rich foods like cruciferous vegetables Ensure you get Nature's Craft Glutathione Antioxidant & Anti Aging Nutritional Supplement with Milk Thistle Extract 30 Capsules Walmart.com FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA Foods With L Glutathione: Avocado, Watermelon, and More GoodRx