1. You don't need to get up quite early in the morning, and you don't need to run many steps. The most important thing is to do 5- 10 minutes of exercise in the morning, just do it at home, and then insist on eating bread and butter three times a week. Milk is a must-have every morning!

2. Chinese food can eat some meat, and daily water supplement is also very important. Pay attention to drink less carbonated drinks and eat less snacks!

3. Eat more vegetables for dinner, eat a fruit one hour before going to bed, take a walk after dinner, don't do strenuous exercise, and rest at night is conducive to the absorption of nutrients in vegetables and fruits.

There is no need to go to any fitness. 15 years old children, during the period of physical and brain development, nutrition is the most important!

Go to the hospital for a check-up to see what is missing and supplement nutrition accordingly. After the age of 20, what is missing is obvious!

A little advice, I forgot to take it.