Glutathione Deficiency in Cardiac Patients Is Related to the Functional Status and Structural Cardiac Abnormalities PLOS One Benefits of Glutathione." Glutathione is a compound involved as a coenzyme in oxidationreduction reactions in cells. It is a tripeptide derived from 3 amino acids: Cysteine, glutamate (from glutamic acid), and glycine. Glutathione level and glutathione reductase activity in serum of coronary heart disease patients Measuring Your Risk of Developing Heart Disease DrJockers.com Glutathione Peroxidase 1 Activity and Cardiovascular Events in Patients with Coronary Artery Disease New England Journal of Medicine