The disadvantages of drinking too much cola include excessive sugar intake, affecting the absorption of calcium and causing dental caries. 1. Sugar intake exceeds the standard: every 100 milliliters of cola contains 41 calories, of which 10.58 grams of carbohydrates, 2 milligrams of calcium, 0.02 grams of iron. So the vast majority of the calories in cola come from carbohydrates, high sugar content, other nutrients are very little, long-term intake is easy to make sugar into fat hoarding up, only to lead to obesity. 2. affect calcium absorption: cola contains more phosphate, affecting the absorption of calcium, at the same time will lead to an increase in calcium discharged from the urine, is not conducive to bone health, easily induced osteoporosis. 3. Lead to dental caries: the sugar in cola accumulates in the mouth and is easily converted into acid, decalcifying the teeth and causing dental caries. Drinking more cola may also cause other problems, such as increased intake of food additives. It is recommended to replace cola with healthy drinks such as plain water and green tea in order to protect your health.