what is NAC antioxidant
NAC â The Good and the Bad. N-acetyl cysteine is the stable form of the amino acid, cysteine â an antioxidant that is commonly found in food and synthesized by the liver. NAC helps the body synthesize glutathione, the bodyâs master antioxidant.Since it is a glutathione precursor, NAC protects the liver from the damaging effects of toxins â a function that can prevent chronic liver disease from advancing to a more severe illness.icole Cutler. Learn how N-acetyl cysteine helps protect your liver from oxidation â especially when it is paired with another common antioxidant. N-acetyl cysteine (NAC) is an antioxidant that has a lot to offer anyone with a damaged liver.