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 NAC vs. Glutathione and How They Work Invigor Medical 12 Benefits of N Acetylcysteine (NAC) Supplements N Acetylcysteine Medical Countermeasures Database CHEMM Not all supplements work the same. Some just add. Some activate. NAC is your body's antioxidant switchfueling glutathione, calming the brain, and supporting immunity. This is how real health works. From the