Modeling the Catalytic Cycle of Glutathione Peroxidase by Nuclear Magnetic Resonance Spectroscopic Analysis of Selenocysteine Selenenic Acids Journal of the American Chemical Society How Keeping Glutathione Levels Up Can Benefit Your Health & Your Vitamin D Status GrassrootsHealth 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 Selenium Linus Pauling Institute Oregon State University