UFCThe Ultimate Fighting Championship (UFC) is a U.S.-based mixed martial arts organization, recognized as the largest MMA promotion in the world. The UFC is headquartered in Las Vegas, Nevada and is owned and operated by Zuffa, LLC. This promotion is responsible for solidifying the sport's postion in the history-books.
UFC is currently undergoing a remarkable surge in popularity, along with greater mainstream media coverage. UFC programming can now be seen on FOX, FX, and FUEL TV in the United States, as well as in 35 other countries worldwide.
I personally don't know how good it is relative to the other supplements available because I've never used it but I can't magine that it is that much better. They simply have spent a lot of money to promote their product through the UFC and the fighters use it as part of the arrrangement between Xyience and the UFC.
As for whether all future UFC champs will use it, I am sure that if Xyience has their way it will be mandatory - and I'm sure their marketing contract with the UFC specifically addresses this issue.
Xyience throws ALOT of $$$$ the UFC's way. So in return i am sure that all the Title Holders have to endorse the product. Once one of these guys lose their belt be sure to watch to see who joins the commercials next. Those guys at Xyience are making a killing because they have people beliveing that Xyience will make u better. However, I am not sure if it is at all any better than any other supplements.