Because glutathione levels decline as you age, and glycine can help slow the glutathione slide, it's a good idea to keep your levels high by eating protein rich foods, like organic poultry, grass fed Glutathione & Diabetes: How the Body's Master Antioxidant Alleviation of Experimental Diabetes in Man by Administration of Reduced Glutathione (GSH): Metabolic Implications Science The Roles of Glutathione and Oxidative Stress in Diabetes and COVID 19 What is glutathione and why must we protect patient access to it?