Black coffee helps gastrointestinal peristalsis and promotes digestion and absorption, which has a certain slimming effect. It is advisable to drink 2-4 cups of black coffee every day. Drinking too much will lead to insomnia, high blood pressure and other side effects, and drinking black coffee alone will not make you slim down. In this case, I won't be as good as I am now, and I lose weight much faster than black coffee. In addition, if black coffee is bitter and you don't like it, don't force yourself. Usually eat more light vegetarian food. ! !