Homocysteine: Genetics, High Homocysteine Levels, and Solutions Burn induced Oxidative Stress and Serum Glutathione Depletion; a Cross Sectional Study. Possible mechanism and consequences of oxidative stress in burn injury. This schematic figure suggests two Seyed Isaac Hashemy 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 Supplements: A Complete Guide