Coke is actually the brown color of white sugar or sulfide sugar after high temperature dissolution and heating. This is the color of coke, so it will be very sweet. Carbonic acid contained in cola is carbon dioxide dissolved in cola at low temperature and high pressure. After drinking, it becomes hot through the esophagus, and carbonic acid will be decomposed into carbon dioxide and water, thus increasing satiety. Coke is high in calories. Drinking more at will not lose weight, but will gain weight. Long-term drinking will do harm to the stomach.