I used to go on a diet when I was studying. I didn't eat anything but fruit. Eat three meals a day and drink boiled water when you are hungry. physical education class should do some moderate exercise. Snacks must not be eaten. If you feel too much in the middle, have a meal with vegetables. Lose at least 20 pounds a month. But it hurts your health. If you are not very fat, don't lose weight. Don't use those slimming things. The fruit is an apple.