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 9 Health Benefits of Glutathione High protein, low glycemic index snack from optimized blend of three wholegrains exhibits nutraceutical quality and elicits low glycemic response in diabetic human subjects Food Production, Processing and Nutrition Springer Nature Exposure to Static Magnetic and Electric Fields Treats Type 2 Diabetes: Cell Metabolism