Wondering if N acetylcysteine (NAC) is as effective as people say? , While NAC helps boost glutathione, it's also packed with sulfur. Too much sulfur, especially from supplements, can lead to N Acetyl Cysteine (NAC) + Glycine 800mg 60 Caps N Acetyl Cysteine supplementation lowers high homocysteine plasma levels and increases Glutathione synthesis in the trans sulfuration pathway Italian Journal of Medicine Treatment of four siblings with progressive myoclonus epilepsy of the Unverricht Lundborg type with N acetylcysteine Neurology