Natural Ways to Increase Your Glutathione Levels What are the Natural Sources of Glutathione? Boost your body's natural defense with these 5 superfoods that help increase Glutathione levels! 1. **Fruits** Watermelon, avocado, and grapefruit aren't just tastythey're packed with nutrients that support glutathione production, Glutathione is a powerful antioxidant made by the body that helps protect cells, support detoxification, and promote healthy, glowing skin. These foods naturally help boost and protect glutathione levels supporting skin health