Liposomal Glutathione vs NAC: What to Take The Use and Potential Benefits of N Acetylcysteine in Non Acetaminophen Acute Liver Failure: An Etiology Based Review Metabolic Maintenance NAC 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: Comparing Antioxidant Powerhouses for Your Health IVDrips