Jogging for 4000m every day (you can go to fun run) for 25 days, while eating coarse grains of vegetables and fruits. Don't go on a diet Summer is coming, it is a good time to lose weight, because tomatoes and cucumbers can be eaten enough. Of course, if the staple food is not enough, you must fill it with fruits and vegetables, and it is 80% full! Be sure to persist! !