It is still not recommended to lose weight through drugs. You can run and play basketball. If you play basketball, you can not only exercise, but also be good for teenagers in the growing stage, which can promote the growth of bones, thus promoting growth and height. And don't eat less because you lose weight. Don't eat too much at every meal. Don't sit or lie down immediately after eating. You can go out for a walk to help digestion. Don't overeat.