Glutathione deficiency and heart failure: a systematic review of human and animal evidence ScienceDirect One lab marker could reveal your risk for heart disease, brain decline, and poor detoxand most people have never heard of it. Selenium and Its Supplementation in Cardiovascular DiseaseWhat do We Know? How Common is Heart Disease in Diabetes? Heart Disease and Diabetes 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.