Thankfully, these rumors are mostly false and come from studies tested with soda, not carbonated water. First of all, sparkling water does not appear to affect bone health. It is, however, slightly more acidic than still water, and could theoretically erode enamel, though it’s unlikely you could drink enough for this to happen.Sparkling water with added flavors — even those without sugar or high fructose corn syrup — can damage your teeth if you drink them in excess. Many brands improve their taste with acidic citrus-based additives, which can eat away enamel over time when drunk in large quantities. Still, they’re nowhere near as bad for your teeth as syrupy soft drinks. If you’re concerned, you can add fluoride to your water, rinse your mouth after drinking sparkling water, drink through a straw, or enjoy it as a dinnertime treat so that your food cuts the acid.