To tell you exactly, I can't. In addition, I advise you not to drink coffee all the time, because there is an ingredient in coffee called caffeine. If you drink it often, it will be harmful to your health and will produce dependence. It is best not to drink it. And it's best to choose things like juice at night, because coffee is usually something that white-collar workers drink overtime at night, which will also have a bad influence on sleep. Besides, drinking coffee at night won't make you thin. If used improperly.