Of the children studied that attended obesity camps for 2 or more summers, about 61% where able to maintain their BMI at less than the initial measurement. The children where very successful at losing weight while at the camp, but regained at least some of the weight during the rest of the year.
The researchers concluded that surgery (gastric bypass) would have had better results over the camps results. I suppose that is true, but the campers did”nt really have any trouble losing weight, it was keeping it off that was the problem.