is it harmful to drink carbonated water excessively?

Answer 1

Carbonation occurs when carbon dioxide is dissolved in water or an aqueous solution. This process is generally represented by the following reaction, where water and gaseous carbon dioxide react to form a dilute solution of carbonic acid.

Since all you are drinking is carbonation, water and sugar I would say the only thing that would be bad about drinking it excessively, is that sugar can root out your teeth and give you other health problems as well.

Kimberly, RRT