My nephew, 15 years old, 17 1, weighed 228. Then at my uncle's suggestion, I persisted for nearly two years. Now he 183, weight 166. The whole person looks thinner. The most important thing is to keep playing basketball, keep running, ... keep exercising, and the key is to keep exercising. If you lose one day, you lose three days, so losing weight is not dieting, but diet control and exercise. Of course, this is for boys. Although this method is also very effective for girls, many girls don't like to grow muscles by themselves. If you can't insist, forget it. I am now 17 years old, my height 18 1, and my weight 143. Through exercise, I not only lost weight, but also grew taller. I think I just entered the first year of high school, and I am also a big fat man. My mother fed me after I graduated from grade three.