Well, this is good to know. I have a friend taking the Xenedrine as well, and I was encouraging her not to take it. This will make her feel better.

I looked up the ingredients on my Fat Burners and found that the different things like Cinnamon and Cayenne are great to have. The Kola Nut is really just another form of Caffeine. I don't know what the Yohimbe is though. However, I think I will keep taking them, for the extra ingredients, as opposed to just taking Chromium Picolinate.

Thanks for everyone's imput...