Eat These Foods to Increase Glutathione in Your Body Vitality Medical Wellness Center L Glutathione (Reduced), 500 mg, 120 Veggie Capsules Frontiers Garlic glutamyl transpeptidases that catalyze deglutamylation of biosynthetic intermediate of alliin Glutathione 500 mg Plus 21st Century Vitamins 21st Century Vitamins 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 Recipe: Nutrient Dense Bone Broth for Glutathione Support