Pure coffee itself will not make people fat, even after lunch, it will help to absorb oil and keep fit, but if it is a three-in-one coffee, the saccharin and creamer in it will make people fat, and the acrylamide contained in it may cause cancer. So, no matter where coffee comes from, you'd better know its ingredients. If it is black coffee, that is, pure coffee, it doesn't matter. This coffee tastes a little bitter. If it contains sugar and cream (.