Hi Finn,
I am taking the N.A.C. ,3 capsules a day, along with some lymphomyosot which are homeopathic drops to stimulate lymph system.
I have been taking these every day since March 2006,(so for 1 and half years when my 8 fillings still in.)
My health begin to improve dramatically back in march 06
when I started these maybe I shifted or got rid of some metal, I enjoyed a few good health months
with almost consistant energy.(but never 100%)
Then I got sick &tired again and went through the process of having the fillings replaced.
There was alot of negative reports on here about N.A.C.
I was doubting it too,and am still not sure about any of the protocols but I'm keeping on with the supplements from my natural doctor at the moment and doing research meanwhile,waiting for hairtest results to see what's going on with the metals.

I think I do feel better when I am taking the N.A.C.
If you do a search for the word NAC you'll probably find a few posts.
Hope this helps in some way.
I forgot to mention I switched from NAC to Liposomal Glutithione for about a week or maybe 2,but I don't think it agreed with me,I did not feel well at all.Unless this was a coincidence and at the same time something else making me ill..who knows.
I switched back to N.A.C. it seems to suit me ok.
Although the natural medicine doctor recommended I now take both NAC & Glutithione which I have not done &am not sure about.
sunflower