10 Foods That Contain Glutathione Core Med Science 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 7 Foods Rich In L Glutathione that You Must Eat NOW! Sulfur rich foods support glutathione,an intracellular antioxidant that helps cells detoxify. #plantbased