Glutathione You Are The Healer Glycine Metabolism and Its Alterations in Obesity and Metabolic Diseases L Glutathione reduced 13C (GSH 13C) Stable Isotope MedChemExpress Glutathione is the body's master antioxidant. It is important for handling oxidative stress, detoxification, and immune health. Low glutathione is linked to many chronic illnesses. Knowing what your body needs to make Glutathione is the body's primary internal antioxidant, made using the amino acid cysteine, and it helps protect cells from oxidative stress. Beyond detoxification, research shows glutathione is involved in thyroid hormone metabolism,