Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Glutathione: The Master Antioxidant Core Med Science Difference Between Glutamic Acid and Glutamine 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 Free Radicals & Oxidative Stress effects on Pet Health