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 Glutathione & Glutathione Reduced Metabolics What is Glutathione and How Can You Increase Your Levels? Want to naturally boost your glutathione levels? These foods are your secret weapons. Incorporate these into your diet and experience the glow from within! Share this with your friends Eat These Foods to Increase Glutathione in Your Body Vitality Medical Wellness Center TURNER New Zealand 100% Grass Fed Halal Beef & Lamb, Wild Seafood