Here’s where things get a little prickly. All that fizz comes from carbonic acid, which makes the water slightly more acidic than flat water.
Panic not, my crunchy-toothed friend. Studies show that sparkling water is 100 times less erosive to your enamel than sugary soda. Your teeth will survive a few cans a day without turning into chalk.
Unless you’re sucking on a lemon wedge between sips, you’re fine. Relax your jaw.