5 Route of synthesis of glutathione (GSH) involving three amino acids Download Scientific Diagram Immunocal Platinum: Improve Glutathione Levels Immunotec Immunotec Every time you exercise your body generates oxidative stress as a natural byproduct of muscle contraction and energy production. At moderate levels that is a healthy signal. But when exercise intensity exceeds 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