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 Eat These Foods to Increase Glutathione in Your Body Vitality Medical Wellness Center How Does Glutathione Work? LivOn Labs Supplements to Increase Glutathione in the Body? Office for Science and Society McGill University