Coke as a carbonated beverage, contains a lot of sugar, long-term drinking may lead to excessive sugar intake, affecting the digestive function, but also one of the factors that induce dental caries. 1. Excessive sugar: Cola contains high sugar content, long-term drinking of large quantities of cola may aggravate the body’s sugar metabolism burden, and even cause obesity, itself suffers from abnormal glucose tolerance or diabetes patients can not drink cola. 2. Digestive function: Cola belongs to carbonated beverages, containing a large amount of carbon dioxide, a large amount of drinking will cause the stomach to produce a large amount of gas, causing bloating, affecting the digestive function, the person who has gastrointestinal disorders can not drink Cola. 3. Dental caries: Cola contains acid and sugar, which is one of the factors inducing dental caries. Normally, it is recommended to drink more water and less carbonated beverages to maintain good health.