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.
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I heard he's doing it to improve his speed, technique and cardio. I haven't seen any confirmed sources so it's hard to tell though. I'd assume it's permanent since he's been getting smaller and smaller since the Carwin fight.
He's getting leaner which means he's going to be even more powerful and better conditioned. Look at how fast he was at 285-300. He looks very lean and cut up right now on the show. Still probably at 265 weigh in/fight time.
Besides after going through that life altering procedure wouldn't you eat a healthier diet?
a brock lesnar at 265 with a balanced diet is much much scarier than a 290 pounder that poisons himself slowly everyday. Anyone into health knows there is a difference between being in shape and being healthy.