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 Therapeutic effects of reduced glutathione on liver function, fibrosis, and HBV DNA clearance in chronic hepatitis B patients BMC Gastroenterology Springer Nature Link Is Glutathione Good for Liver Health? Exploring Its Benefits, Uses, and Side Effects IVDrips Full article: Dietary Supplements as Modulators of the Nrf2 Pathway to Enhance Intracellular Antioxidant Responses and Protect Against Dyslipidemia Associated Cardiovascular Complications A Literature Review of Glutathione Therapy in Ameliorating Hepatic Dysfunction in Non Alcoholic Fatty Liver Disease Glutathione IV for Liver Detox: Support & Benefits AZ IV Medics