Don't expect to shed pounds solely due to your choice of beverage. The benefits of drinking carbonated water for weight loss are “so small that it is difficult to expect weight loss effects solely from the CO2 in carbonated water,” the study notes.

A new study finds that drinking carbonated or sparkling water may contribute to weight loss via two mechanisms, though it may need other factors to make a significant impact.

"CO2 in carbonated water may promote weight loss by enhancing glucose uptake and metabolism in red blood cells," according to researchers