So far every single person I've known that got gastric bypass has regained a lot of the weight except one, and she's still within the first two years where it's difficult to stretch it out too much. One of the most annoying was one guy who was so proud, he lost something like 40lbs getting ready for his gastric bypass. I was dumbfounded. Why didn't he just keep doing EXACTLY THAT? He would have been back down to human size in another 2 years tops without any kind of life altering surgery.