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 Glutathione an overview ScienceDirect Topics Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Glutathione: What It Is, Why You Need It, How You Can Increase It The Amino Company