If you can cooperate, you will definitely lose weight. If you don't cooperate, there is no way to make you lose weight. I don't think it's reliable to guarantee how many pounds to lose, because everyone's physique is different, and the weight and speed of losing weight are different.
So what kind of effect you want to achieve depends on the degree of cooperation. Generally, there is a course of treatment and consolidation, and the diet arrangement is relatively rich. I think cooperation is not difficult. I might as well learn more from Baidu for details.