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 Peroxidase 1 Activity and Cardiovascular Events in Patients with Coronary Artery Disease New England Journal of Medicine Good Hope Beverage Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease Glutathione: A Little Miracle for Your Health Restorative Health Solutions