If you're a fan of the TV show "Biggest Loser" you should already be aware that several of their contestants last series and the current one have had these procedures in the past. Obviously, if they're on the show, they regained all the weight they had lost. My friend, who had the surgery two years ago lost a lot of weight but has also gained back most of what she lost. Her biggest problem immediately after her surgery was when all her hair fell out. Its grown back in but is now extremely thin.