How do high school students lose weight? Girls, 17. 165, immediately increased by three. Live on campus. I want to grow taller next year … I want to lose weight now. Give me some pertinent suggestions. Supplementing protein, protein won't make people fat. On the contrary, it takes energy to consume protein. To study in high school, it is not recommended to diet to lose weight, which will lead to endocrine disorders, affect metabolism in the body, and ultimately affect intelligence and academic performance. Just do more exercise! Go out with friends after class. My sister also lost weight in senior three!