Well I didn't come here to argue a point that I'm sure has been beaten to death, so forget I mentioned it. But since you asked, I got my info from the last post on page one from... http://boards.cannabis.com/drug-test...b3-niacin.html ... Now i was originally asking if this is true because that is definitely not a credible source, but if niacin does possess thermogenic properties, then i would think it can effect THC metabolization. If not... I guess i'll bust out the clenbuterol.

Anyway, could you link some credible sources that specifically state how exercise has an effect on THC metabolization?