Beyond Good and Evil The Weston A. Price Foundation Methionine dietary supplementation potentiates ionizing radiation induced gastrointestinal syndrome American Journal of Physiology Gastrointestinal and Liver Physiology American Physiological Society The use of antioxidants in liver disease by James Kyffin British Veterinary Nursing AssociationBritish Veterinary Nursing Association Homocysteine and methionine are key amino acids with a vital connection to glutathione one of your body's most important substances! Methionine is abundant in many foods, so protein isn't the culprit, GLUTATHIONE VERY IMPORTANT FOR MANY REASONS GLUTATHIONE functions as a donator of electrons in all of our cells: *** Anti oxidant * Anti inflammatory * Liver detox: . Free radicals [Phase I] .