It is difficult for such a young girl to lose weight. Now in the development stage, you can't go on a diet or eat any slimming products. The only thing is exercise, control her food intake and gradually reduce it. A sudden reduction may be counterproductive, because after excessive hunger, there will be the possibility of overeating. In addition, it is absolutely impossible to lose ten pounds a week. First of all, no matter how you lose ten pounds a week, it is very dangerous to your health. Losing weight is a protracted war, so you must make up your mind.