Weight Loss WTF

So I know I live in the land of fat people (more commonly know as Texas) but I was in the car this afternoon and heard a rather awful radio commercial about weight loss. They said that medical sceince recommends diet and exercise as a means of losing weight only for those less than 80 lbs over weight and that for those that are morbidly obese it is recommended that you go get surgery and what not. Obviously, this ad is for a place that does lap band and gastric bypass type stuff, but I was a little mad that they would imply that people that are obese have been recommended not to eat better and work out. I shouldn't be shocked, but I am. This concludes my tirade for today.