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 Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Microbiotagutbrain axis in neurodegenerative diseases: molecular mechanisms and therapeutic targets Molecular Biomedicine Springer Nature Link Glutathione S transferase: A keystone in Parkinson's disease pathogenesis and therapy ScienceDirect Frontiers Crosstalk between neuroinflammation and oxidative stress in epilepsy