Glutathione: Benefits and Supplements 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 What Food Has the Highest Amount of Glutathione? Exploring Nature's Antioxidant Powerhouse Cymbiotika CYMBIOTIKA Spinach Powder Wavelength Food rich in glutathione: broccoli, cauliflower, banana, spinach, carrot, orange, avocado, onion, nuts. Glutathione is an antioxidant; helps make proteins in the body; has a variety of health benefits Stock Photo An investigation on glutathione derived from spinach and red cabbage leaves and their effects of adding to meat patties ScienceDirect