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 Can N acetylcysteine (NAC) Supplements Increase Cellular Glutathione Glyteine Existing and potential therapeutic uses for N acetylcysteine: The need for conversion to intracellular glutathione for antioxidant benefits ScienceDirect Protective effects of N acetylcysteine (NAC) on renal damage. The Download Scientific Diagram Chemical structure of NacetylLcysteine and its indirect antioxidant Download Scientific Diagram Transtympanic injection of a liposomal gel loaded with N acetyl L cysteine: A relevant strategy to prevent damage induced by cochlear implantation in guinea pigs? ScienceDirect