Water
Sparkling water gets its sparkle from CO2. CO2 doesn't contain any calories., but it does lower the pH of water. If the water is rich in minerals, that won't make it acidic, since the minerals will buffer the CO2.
Sparkling water gets its sparkle from CO2. CO2 doesn't contain any calories., but it does lower the pH of water. If the water is rich in minerals, that won't make it acidic, since the minerals will buffer the CO2.