Foods Rich Glutathione Fresh Ripe Fruits Stock Photo 2626383207 Shutterstock 7 Powerful Natural Sources of Glutathione for Optimal Health 8 Foods Containing the Highest Quantity of Glutathione Glutathione, A Powerful Antioxidant Indigo Health 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 facts: 1. Glutathione is an important antioxidant in the body that helps protect cells from damage caused by free radicals. It is found in almost every cell and is composed of