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 is a great supplement. It's awesome stuff to support healthy lungs. NAC is a known mucolytic. That is a fancy term meaning breaking up mucus. Now, research does show that NAC NAC vs Glutathione: Which Antioxidant Is Right for You? Momentous All About NAC (N acetylcysteine): What it is and what benefits it has Zenement