Frontiers The effect of selenium on antioxidant system in aquaculture animals Selenium Linus Pauling Institute Oregon State University 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 Frontiers Understanding Selenium and Glutathione as Antiviral Factors in COVID 19: Does the Viral Mpro Protease Target Host Selenoproteins and Glutathione Synthesis?