Eat something to help digestion. For example, drink some milk and eat some millet porridge, but don't be too full. Also, never drink glucose or eat chocolate. Although these things can supplement calories, the function of glucose plays a role in a certain period of time. If after that time, it will not only have no effect on the physical education exam, but also reduce the sugar in the blood, which will only be counterproductive. After eating chocolate, you will feel thirsty when running, which is not conducive to running.

The staple food for breakfast can be steamed bread, steamed stuffed bun, egg noodles, corn porridge and so on. Foods rich in protein can consider boiled eggs, shredded tofu, boiled soybeans, tofu, boiled peanuts and shallots mixed with tofu; Thin food can consider corn porridge, egg soup, dried noodles, cereal and so on. Side dishes can be mixed with shredded carrots, cucumbers, cabbage and kelp. Additional efforts should be made to increase the intake of high-quality protein.

Suggestion 1: it is best to finish dinner 2 ~ 3 hours before exercise, so as to make full use of the function of "liver sugar overcompensation" and improve sports performance; If the interval between dinner and exercise is too close, symptoms such as nausea, stomachache and drowsiness may occur during exercise.

Suggestion 2: If you can't stagger the time of dinner and exercise, you can also eat snacks to 1 hour 30 minutes before exercise and postpone the time of dinner until after exercise.