What is glutathione? Aktif International Hospital 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 The Health Benefits of Fermented Foods and Their Role in Metabolic Disorders Fermented Foods and Beverages Glutathione Rich Foods : 6 What are the Natural Sources of Glutathione? Glutathione Rich Foods : 6