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Functional bowel symptoms and diet.

P R Gibson1, J S Barrett, J G Muir

  • 1Department of Gastroenterology, Monash University and Alfred Hospital, Melbourne, Victoria, Australia.

Internal Medicine Journal
|October 19, 2013
PubMed
Summary
This summary is machine-generated.

Dietary changes, like the low fermentable oligo-, di- and mono-saccharides and polyols (FODMAP) diet, effectively manage irritable bowel syndrome (IBS) symptoms. Further research is needed for other food components and long-term safety.

Keywords:
carbohydratedietfatfood chemicalirritable bowel syndromeprotein

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Area of Science:

  • Gastroenterology
  • Nutritional Science
  • Dietary Therapy

Background:

  • Food intake frequently triggers functional bowel symptoms, especially in irritable bowel syndrome (IBS).
  • Dietary manipulation is a common patient strategy, but evidence for efficacy is often limited.
  • Understanding how specific food components affect IBS pathophysiology is crucial for rational dietary design.

Purpose of the Study:

  • To evaluate the efficacy of dietary approaches in managing functional bowel symptoms.
  • To highlight the role of specific food components, such as FODMAPs, in IBS.
  • To discuss the evidence base and future directions for dietary interventions in functional bowel disorders.

Main Methods:

  • Investigated the impact of short-chain poorly absorbed carbohydrates (FODMAPs) on IBS pathophysiology.
  • Designed and assessed a diet favoring low-FODMAP foods over high-FODMAP foods.
  • Reviewed observational, comparative, and randomized controlled studies, including rechallenge trials.

Main Results:

  • The low FODMAP diet has demonstrated efficacy in the majority of IBS patients.
  • This dietary approach is now considered a primary therapy for IBS.
  • Other food components like gluten, fats, and bioactive chemicals show potential but require more research.

Conclusions:

  • Dietary manipulation is a key strategy for managing functional bowel symptoms.
  • The low FODMAP diet is a well-supported and effective intervention for IBS.
  • Further research is essential to refine dietary approaches and assess long-term safety and nutritional adequacy.