N-acetylcysteine is a supplement that helps your body make more of a natural antioxidant called glutathione, which protects your cells. Doctors are now using it more often to help patients after...

N-acetylcysteine serves as a precursor to glutathione, the body's primary intracellular antioxidant and detoxification molecule.

When someone takes too much acetaminophen (like Tylenol), it can damage the liver—but N-acetylcysteine (a medicine given in hospitals) helps the liver clean up the poison by restoring a natural protective chemical called glutathione.

N-acetylcysteine increases glutathione availability in adipocytes, which reduces oxidative stress, decreases inflammatory signaling, and restores insulin sensitivity, thereby normalizing adipocyte function.

NAC is a supplement that helps your liver make more of a natural cleaning chemical called glutathione, which helps your body get rid of toxins.