Glycine and N acetylcysteine (NAC) are amino acidbased nutrients that serve as precursors for glutathione, one of the body's most important intracellular antioxidants. Glutathione plays a central role in reducing oxidative stress, supporting Appraising the Role of Astrocytes as Suppliers of Neuronal Glutathione Precursors NAC [N AcetylCysteine] is a precursor of Glutathione. PICTURE: Glutathione is made from three amino acids and cysteine is one of them Continual G Capsule PDF] Thimerosal neurotoxicity is associated with glutathione depletion: protection with glutathione precursors. Semantic Scholar