Glutathione in Food: How Your Diet Supports This Antioxidant 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 is a powerful antioxidant produced naturally in the body necessary for maintaining a youthful appearance and overall well being. The body's glutathione production naturally declines with age. Certain foods may help boost Jarrow Formulas Glutathione Reduced Intracellular Antioxidant Capsules 500 mg, 60 ct Smith's Food and Drug Top 15 Glutathione Rich Foods: Health & Detox Benefits