Individuals with MTHFR mutations and slow COMT activity can generally take N acetylcysteine (NAC) and glutathione, but there are some important considerations: ## N Acetylcysteine (NAC) * **Benefits**: NAC supports the production of glutathione, 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 N Acetyl Cysteine Functions as a Fast Acting Antioxidant by Triggering Intracellular H2S and Sulfane Sulfur Production: Cell Chemical Biology The Super Antioxidants: Glutathione And NAC OC Integrative Medicine N Acetylcysteine Medical Countermeasures Database CHEMM Not all supplements work the same. Some just add. Some activate. NAC is your body's antioxidant switchfueling glutathione, calming the brain, and supporting immunity. This is how real health works. From the