What are the Health Benefits of Glutathione? Healthier Steps The 7 Best Glutathione Foods Foods Highest in Glutathione Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Foods High in Glutathione Dr. Christina Carlyle GLUTATHIONE AntBariatric Because glutathione levels decline as you age, and glycine can help slow the glutathione slide, it's a good idea to keep your levels high by eating protein rich foods, like organic poultry, grass fed