NAC INFORMATION SHEET —Robert D. McMullen, MD

[note reference at the bottom : vitamin D stimulates the formation of glutathione in the brain, and NAC provides the cysteine to manufacture more.] 7/3/2019:  This is embarrassing. When I first used NAC about a decade ago, I frequently had tremendous results. Last few years the NAC seemed not as effective. I just found out why. [...]