Diabetes
Until recently, researchers believed obesity was the major cause of diabetes, not sugar. However, new research has shown that sugar has a contributory effect to diabetes, beyond the calories it contains. An increase of roughly one can of soda per day was associated with a 1.1% increase in diabetes prevalence.
Asthma
In a study, children who drank more than half a litter of soft drinks per day were significantly more likely to suffer from asthma or COPD. The greater the consumption of soft drinks, the more likely an individual is to suffer from one of these respiratory conditions.
Tooth decay
The link between sugar and tooth decay is well-established. There is also significant evidence that maintaining your intake of excess sugars at below 5% of your diet will help to avoid cavities. However, you can make an appointment with your doctor to see if everything is all right.