N Acetylcysteine improves intestinal function and attenuates intestinal autophagy in piglets challenged with conglycinin Scientific Reports 12 Benefits of N Acetylcysteine (NAC) Supplements Adjunctive N Acetylcysteine and Lung Function in Pulmonary Tuberculosis NEJM Evidence 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