How do primary school students lose weight best? First, exercise. Through various exercises, you can achieve the effect of losing weight. For example, riding a bike, skipping rope and climbing stairs. Second, a reasonable diet. Step by step. Many parents worry that dieting will affect their children's healthy growth. Actually, there is no need to worry. As long as the method is proper and the arrangement is reasonable, it will not affect them. Third, eat more fruits and vegetables, less junk food, less meat and less snacks. Most fat children like to eat meat. Try to be light and not greasy. Fourth, good living habits. Eat regularly and don't overeat.