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Irritable Bowel Syndrome

Chronic functional GI disorder characterized by abdominal pain associated with altered bowel habits, in the absence of structural disease.

Also: IBS

Diagnosed by Rome IV criteria. Subtyped as IBS-D (diarrhea-predominant), IBS-C (constipation-predominant), IBS-M (mixed), or IBS-U (unsubtyped). MNT includes the low FODMAP diet, soluble fiber, regular meal patterns, stress reduction, and probiotics in selected patients. Symptoms involve visceral hypersensitivity, altered motility, and gut-brain axis dysregulation.

How one textbook covers it

  • Krause and Mahan's Food and the Nutrition Care Process, 16th ed. — Chapter 28

    Diagnosed by Rome IV criteria. Subtyped as IBS-D (diarrhea-predominant), IBS-C (constipation-predominant), IBS-M (mixed), or IBS-U (unsubtyped). MNT includes the low FODMAP diet, soluble fiber, regular meal patterns, stress reduction, and probiotics in selected patients. Symptoms involve visceral hypersensitivity, altered motility, and gut-brain axis dysregulation.

Related terms

Gut-Brain Axis, Low FODMAP Diet, SIBO