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  • With Mayo Clinic gastroenterologist

    Michael Picco, M.D.

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Question

Fructose intolerance: Can it cause IBS?

Can fructose intolerance cause irritable bowel syndrome?

Answer

from Michael Picco, M.D.

Fructose is the natural sugar in fruit. Fructose is also found in sweeteners such as high-fructose corn syrup. Fructose intolerance can cause bloating and diarrhea in some people. Although these symptoms may be confused with irritable bowel syndrome (IBS), fructose intolerance isn't thought to cause IBS. It's important to note, however, that people who have IBS may be more susceptible to bloating and diarrhea from fructose. In this case, reducing or eliminating dietary fructose may ease symptoms.

Next question
Fiber supplements: Are they safe to take every day?
References
  1. Picco MF (expert opinion). Mayo Clinic, Jacksonville, Fla. May 7, 2008.
  2. Choi YK, et al. Fructose intolerance in IBS and utility of fructose-restricted diet. Journal of Clinical Gastroenterology. 2008;42(3):233-238.
  3. Skoog SM, et al. Comparison of breath testing with fructose and high fructose corn syrups in health and IBS. Neurogastroenterolgy and Motility. 2008;20(5):505-511.

AN01929

Oct. 31, 2008

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