The Roles of Glutathione and Oxidative Stress in Diabetes and COVID 19 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? 8 Health Benefits That Might Surprise You Preconditioning and Supplementation with Glutathione ameliorates oxidative stress, mitochondrial dysfunction and restores metabolic imbalance in insulin resistant myotubes ScienceDirect