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 Should You Pick NAC or Glutathione? The Truth Inside Frontiers The role of N acetylcysteine in osteogenic microenvironment for bone tissue engineering As I mention in my book, N acetyl cysteine (NAC) is not found in food sources, but in the body, it converts into cysteine. NAC acts as a precursor to glutathione, a powerful Engineered Cellular Resistance: The Science of Momentous Longevity