Maybe I'm not smart enough to understand how xenadrine works. I keep finding information about xenadrine rfa, and xenadrine rfa 1. I want to buy xenadrine, but my mom told me not to get xenadrine rfa. Is it different from xenadrine nrg? She said the xenadrine diet is bad for you, but I can't find anything that says cytodyne xendarine or xenadrine ephedra are harmful.