Which foods should be avoided for those with chronic diarrhea?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Chronic diarrhea is often worsened by high-sugar foods, including sugary drinks, candy, pastries, and processed snacks. Sugars like fructose and sugar alcohols (sorbitol, mannitol) can draw water into the intestines, increasing stool frequency and looseness. Limiting these foods may help reduce flare-ups and support digestive recovery.

Because chronic diarrhea can stem from many underlying causes—ranging from food intolerances and IBS to infections or inflammatory conditions—understanding what's driving your symptoms is essential to finding relief. A free, instant, online symptom check can help you identify possible causes, guide your next steps, and determine whether it's time to see a doctor. It only takes a few minutes and could save you weeks of guesswork.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Learn what may be causing chronic diarrhea Discover if chronic diarrhea needs urgent care Find out if your diarrhea needs a check See OTC options for chronic diarrhea relief Find a doctor for chronic diarrhea care Understand medically valid home remedies for diarrhea Discover likely causes of ongoing diarrhea

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Explanation

Chronic diarrhea can be uncomfortable and disruptive. To help manage it, certain foods should be avoided. According to the provided references, foods high in sugar can negatively impact gastrointestinal health. Sugars can cause the body to draw more water into the intestines, which can make diarrhea worse.

Here are some tips:

Avoid sugary foods and drinks: Sodas, candies, and desserts often contain high amounts of sugar.
Limit artificial sweeteners: These can also lead to digestive issues.

By paying attention to diet and avoiding these foods, people with chronic diarrhea might find some relief from their symptoms. If you're experiencing persistent digestive issues, consider taking a free symptom checker test to better understand what might be causing your discomfort.

(References)

Arnone D, Chabot C, Heba AC, Kökten T, Caron B, Hansmannel F, et al. (2022). Sugars and Gastrointestinal Health. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 34902573.
Gunn D, Topan R, Fried R, Holloway I, Brindle R, Hartley S, et al. (2023). Ondansetron for irritable bowel syndrome with diarrhoea. Unknown Journal, 37931046.
Nunes EC, Marcon S, Oliveira PE, & Loss SH. (2022). Nutritional profile and outcomes of noncritical hospitalized .... Revista da Associacao Medica Brasileira (1992), 36134771.

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