The effects of drinking cola on the body are as follows: 1. It may cause a high incidence of diabetes, because cola is rich in carbohydrates, that is, sugar, and drinking cola often will cause an increase in blood sugar and cause a high incidence of diabetes. 2. It may cause a high incidence of gout, because the carbohydrates in cola will competitively inhibit the discharge of uric acid in the metabolic process, which can lead to an increase in the level of uric acid and cause a high incidence of gout. 3. 3. It is likely to lead to overweight and obesity because the carbohydrates in cola are rich in energy, which can cause excessive energy intake and lead to high incidence of overweight and obesity.