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 Your Glutathione Index Defines How Your Cells Are Ageing Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Glutathione Benefits for Gut Health Nikki Yelton RD Your Complete Guide to Glutathione Schoenwalder Health & Wellness The Anti Obesity and Anti Diabetic Effect of Hibiscus sabdariffa in Meal Form Combination with Bifidobacterium breve 3 in Sprague Dawley Rats