Journal of Cellular Physiology Cell Biology Journal Wiley Online Library Small diet and exercise changes can cut diabetes risk by more than half 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 What is glutathione and why must we protect patient access to it? Glutathione or GSH, is the most powerful naturally occurring antioxidant in all human cells.