Gastroenterologist Questions Acid reflux

Can consuming excess seltzer affect the acid levels in my stomach?

During the day I drink a lot of seltzer. Is this likely to impact the acidic levels in my stomach because of the carbonation or no?

2 Answers

The answer is no. Seltzer water will not alter the acid level in the stomach to any significant extent. The CO2 in any carbonated beverage will stay in gas form after it is consumed, but then the CO2 is absorbed through the intestinal lining and will disappear as a gas. This is why drinking sodas or seltzer does not increase flatulence and why CO2 gas rather than room air is sometimes used during colonoscopy.
It can causes excessive intestinal gas and excessive belching as a result.