Bitter coffee, if you drink a lot of it for a long time, is not able to play a weight loss effect, because the calories contained in it are actually still relatively high, mainly cocoa powder. It can be converted into carbohydrate energy. But appropriate to drink some less on the weight loss a little help, because it can make the basal metabolic rate increase, so that the body as a whole in a relatively high metabolic state, for the consumption of calories to help. If it is in the case of drinking appropriate bitter coffee, diet and then appropriate control, coupled with do not eat especially greasy things, appropriate activities after meals, long-term adherence to be able to play a certain weight loss effect, need to pay attention to is that, if it is high blood sugar coffee on the side do not add sugar.