Can Drinking Soda Worsen Diarrhea Symptoms?

Reviewed by Courtney Bloomer, DO

Emergency Medicine

Drinking soda can make diarrhea worse because it has gas and sugar that might upset your stomach.

Explanation

Drinking soda, which is a carbonated beverage, can affect your stomach and intestines. The bubbles in soda are made from gas, and this gas can cause more bloating and discomfort, especially if you already have diarrhea. Also, sodas often have a lot of sugar, which can make your diarrhea worse by pulling more water into your intestines, leading to more frequent and watery stools.

Why Soda Can Be a Problem:

Gas and Bloating: The bubbles in soda can make you feel more bloated and uncomfortable.
High Sugar Content: The sugar in soda can draw extra water into your intestines, making diarrhea worse.

It's usually better to drink plain water or oral rehydration solutions if you have diarrhea, as these can help keep you hydrated without upsetting your stomach further.

(References)

Cuomo R, Sarnelli G, Savarese MF, & Buyckx M. (2009). Carbonated beverages and gastrointestinal system. Nutrition, metabolism, and cardiovascular diseases : NMCD, 19502016.

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