Glutathione: Discover Its Benefits What is Glutathione? Global Healing With many contaminants in our food & water sources this is a great nutraceuticals to support your body. Be sure to always purchase professional brands. Michelle Pugh, RDN Why Take Glutathione with Vitamin C and Other Nutrients? Water for 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 is known as the body's master antioxidant and detoxifier. Found in large quantities in the liver, it's key to supporting the immune system.