NAC (N acetyl cysteine) is a powerful compound that plays an important role in supporting the body's natural detoxification and antioxidant systems. One of its key functions is helping the body produce glutathione, How NAC May Help Autism, OCD, and Schizophrenia: A Look at the Science Behind N Acetylcysteine Philadelphia Integrative Psychiatry 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 N acetylcysteine (NAC): Health Benefits, Side Effects, Dosage, and More Glutathione, NAC & Vitamin C 30 Veg caps Glutathione, NAC & Vitamin C