It won't get fat, but it's not conducive to losing weight. Pure coffee itself will accelerate blood circulation and digestion, but the role of partner and sugar is opposite. It is recommended to use instant pure coffee. My personal experience is to make a little strong coffee in the morning. If it is in a bag, bring 2 bags and 2 spoons in a bottle. If you feel bitter, you can add xylitol, a sweet seasoning without sucrose. Good defecation. Remember to eat breakfast, or you will hurt your stomach.