Black coffee to lose weight, if you drink a cup of black coffee on an empty stomach in the morning and a cup of dinner before eating at noon, the other cup can be arranged by yourself, and you can't touch starch food for a week, so I choose oatmeal, which is Quaker's original uncooked instant oatmeal twice a day. As for sports, if you can keep up physically, you can jump rope properly. . . You can lose 10 kg in a week.