The consequences of drinking too much carbonated beverages are as follows: 1. It may cause high incidence of overweight and obesity, because carbonated beverages are often rich in carbohydrates and sugars, and if you drink too much, it will cause too much energy to enter your body, which will be stored in the form of fat and cause high incidence of overweight and obesity. 2. 3. It may cause osteoporosis because carbonated drinks contain a lot of phosphorus, which can cause loss of calcium and osteoporosis.