Glutathione is an antioxidant, a molecule that helps fight free radicals. Free radicals are unstable molecules that form in response to factors like your diet and the environment. When more free radicals than antioxidants are present, oxidative cell damage occurs. This can lead to inflammation and a variety of health issues ranging from high blood pressure and diabetes to Alzheimer's disease and more. Antioxidants are critical as they help keep things in a healthy balance. Your body makes some antioxidants, but others come from external sources like diet or supplements like glutathione. In addition to being an antioxidant, GSH also plays a part in your body's:
Metabolism of toxins and cancer-causing substances
Natural creation and repair of DNA
Production of protein and prostaglandin, a compound with hormone-like effects