The calorie intake of food = the calorie required for normal school activities+the calorie required for exercise.

If the amount of exercise is small, you can only eat some foods with small calories.

If you can't reduce the calories of food, you have to increase the amount of exercise appropriately, such as walking 5000 meters every day.

Under normal circumstances, the homework of senior two should be done after 10: 30 in the evening, so it is not advisable to eat too little in the afternoon, otherwise the energy needed for studying at night cannot be guaranteed.

It is best to increase the amount of exercise, let the brain have a rest, burn excess fat, and you will feel the effect immediately after half a month.