Meet your body's master antioxidant Glutathione Antioxidants protect our cells against free radicals, reducing oxidative stress linked to cancer, heart disease, and aging. Whether you're pushing your performance, dialing in How Common is Heart Disease in Diabetes? Heart Disease and Diabetes Do You Have a Glutathione Deficiency? Induction of glutathione biosynthesis by glycine based treatment mitigates atherosclerosis ScienceDirect 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.