Selenium and Its Supplementation in Cardiovascular DiseaseWhat do We Know? 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. One lab marker could reveal your risk for heart disease, brain decline, and poor detoxand most people have never heard of it. Diseases Linked to LOW GLUTATHIONE How Common is Heart Disease in Diabetes? Heart Disease and Diabetes