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 Top 9 Benefits of NAC (N Acetyl Cysteine) Top 9 Health Benefits of NAC (N Acetyl Cysteine) NAC Supplement N Acetyl Cysteine 600mg per Serving Vegan High Absorption Non Smelly NAC Capsules Glutathione for Liver Support plus Lung Health and N Acetyl L Cysteine (NAC), 600 mg, 60 capsules