NAC vs Glutathione: Differences, Similarities And Health Benefits How NAC May Help Autism, OCD, and Schizophrenia: A Look at the Science Behind N Acetylcysteine Philadelphia Integrative Psychiatry N acetylcysteine (NAC) is an antioxidant and anti inflammatory compound that helps the body reduce oxidative stress by boosting levels of glutathione, one of the body's main natural defenses against inflammation. In a study Glutathione vs. NAC: Which Antioxidant Is Best for Your Liver? Life Extension NAC is one of those supplements that I always have on hand. It's impressive how broadly supportive NAC is. One time I was taking NAC 500 mg every day for about two NAC or Glutathione? Which Supplement Is Better? in 2026