Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Which foods are highest in glutathione ? Want to naturally boost your glutathione levels? These foods are your secret weapons. Incorporate these into your diet and experience the glow from within! Share this with your friends Glutathione and Vitamin C: Do They Work Together? Life Extension 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