I did coffee enemas a long time ago and, while nothing ever came of it, they were rather spaced out so I don't really know how effective they could be. I'm in a predicament these days where altering my diet is out of the question so it will be a while before I can experiment in that area.
I started taking NAC because I read posts by Newport and Laredo7, both concerning copper toxicity, that said NAC could be an excellent tool for recovery.
The way NAC works on me is curious, it has increased my sex drive and I'm noticing more and more that on those days where I use that drive I have real energy and sanctuary from the usual feelings of illness. It's like right after cllmax I immediately feel good for the rest of the day, this never happened before I started taking the NAC.