Systematic review: dietary fibre and FODMAP-restricted diet in the management of constipation and irritable bowel syndrome - PubMed (original) (raw)
Review
. 2015 Jun;41(12):1256-70.
doi: 10.1111/apt.13167. Epub 2015 Apr 22.
Affiliations
- PMID: 25903636
- DOI: 10.1111/apt.13167
Review
Systematic review: dietary fibre and FODMAP-restricted diet in the management of constipation and irritable bowel syndrome
S S C Rao et al. Aliment Pharmacol Ther. 2015 Jun.
Erratum in
- Corrigendum.
[No authors listed] [No authors listed] Aliment Pharmacol Ther. 2015 Aug;42(4):490. doi: 10.1111/apt.13293. Aliment Pharmacol Ther. 2015. PMID: 26179765 No abstract available.
Abstract
Background: Dietary fibre supplements have been advocated for the management of chronic constipation (CC) and irritable bowel syndrome (IBS). Recently, a fermentable oligosaccharide, disaccharide, monosaccharide and polyol (FODMAP) restricted diet has been recommended for IBS.
Aim: To systematically examine recent evidence for dietary interventions with fibre in CC and IBS and FODMAP-restricted diet in IBS, and provide recommendations.
Methods: We searched PUBMED, MEDLINE, OVID and COCHRANE databases from 2004 to 2014. Published studies in adults with CC and IBS and constipation-predominant IBS (IBS-C) that compared fibre with placebo/alternative and FODMAP-restricted diet with alternative were included.
Results: Of 550 potentially eligible clinical trials on fibre, 11 studies were found and of 23 potentially eligible studies on FODMAPs, six were found. A meta-analysis was not performed due to heterogeneity and methodological quality. Fibre was beneficial in 5/7 studies in CC and 3/3 studies in IBS-C. FODMAP-restricted diet improved overall IBS symptoms in 4/4 and IBS-C symptoms in 1/3 studies and three studies did not meet inclusion criteria. There were significant disparities in subject selection, interventions and outcome assessments in both fibre and FODMAPs studies.
Conclusions: Fibre supplementation is beneficial in mild to moderate CC and IBS-C, although larger, more rigorous and long-term RCTs are needed (Fair evidence-Level II, Grade B). Although the FODMAP-restricted diet may be effective in short-term management of selected patients with IBS (Fair evidence-Level II, Grade C) and IBS-C (Poor evidence-Level III, Grade C), more rigorous trials are needed to establish long-term efficacy and safety, particularly on colonic health and microbiome.
© 2015 John Wiley & Sons Ltd.
Comment in
- Editorial: fibre and FODMAPs in constipation and irritable bowel syndrome.
Whelan K. Whelan K. Aliment Pharmacol Ther. 2015 Aug;42(3):383-4. doi: 10.1111/apt.13279. Aliment Pharmacol Ther. 2015. PMID: 26147109 No abstract available. - JPEN Journal Club 48. When Systematic Reviews Differ.
Koretz RL. Koretz RL. JPEN J Parenter Enteral Nutr. 2020 Feb;44(2):374-376. doi: 10.1002/jpen.1703. Epub 2019 Sep 2. JPEN J Parenter Enteral Nutr. 2020. PMID: 31475362 No abstract available.
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