Evidence map›Paper›PMID 27417338›Full record

Trial reportAlimentary pharmacology & therapeutics2016

Randomised clinical trial: low-FODMAP rye bread vs. regular rye bread to relieve the symptoms of irritable bowel syndrome.

R Laatikainen, J Koskenpato, S-M Hongisto, J Loponen, T Poussa, M Hillilä, R Korpela

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Alimentary pharmacology & therapeutics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 8 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

52 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Nutritional benefits of sourdoughs: A systematic review.Advances in nutrition (Bethesda, Md.) · 2023
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
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  8. Pooled it
  9. Trial
  10. Trial
  11. Low-FODMAPWorld journal of gastroenterology · 2018
    Trial
  12. Trial
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. Fermented foods and gastrointestinal health: underlying mechanisms.Nature reviews. Gastroenterology & hepatology · 2024
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

R LaatikainenFaculty of Medicine, Department of Pharmacology, University of Helsinki, Helsinki, Finland.ORCID 0000-0003-2907-0291
J KoskenpatoAava Medical Centre, Helsinki, Finland.
S-M HongistoFazer Bakeries Ltd, Vantaa, Finland.
J LoponenFazer Bakeries Ltd, Vantaa, Finland.
T PoussaSTAT Consulting Ltd, Nokia, Finland.
M HilliläAava Medical Centre, Helsinki, Finland.
R KorpelaFaculty of Medicine, Department of Pharmacology, University of Helsinki, Helsinki, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGrains are high in FODMAPs (Fermentable Oligo-, Di-, Monosaccharides And Polyols) and often considered as triggers of IBS symptoms.

aimTo evaluate if rye bread low in FODMAPs would be better tolerated than regular rye bread in subjects with IBS.

methodsThe study was conducted as a randomised double blind controlled cross-over study (n = 87). Participants were supplied with both regular rye bread and low-FODMAP rye bread for 4 weeks. Symptoms were measured with a symptom severity scoring system (IBS-SSS) and visual analogue scale (VAS) assessments of individual symptoms. Quality of life was monitored. Colonic fermentation was measured by the breath hydrogen test and dietary intake by food diaries.

resultsDietary fibre intake increased during both study periods compared to baseline. Many signs of IBS i.e. flatulence, abdominal pain, cramps and stomach rumbling were milder on the low-FODMAP rye bread (P-values: 0.04; 0.049; 0.01 and 0.001). The mean of VAS measurements was favourable towards LF bread [-3 (95% CI): -6 to -1, P = 0.02] but no differences were detected in IBS-SSS or quality of life. The AUC of breath hydrogen values was significantly lower during the low-FODMAP bread period (median 52.9 vs. 72.6; P = 0.01).

conclusionsLow-FODMAP rye bread helps IBS patients to control their symptoms and reduces gastrointestinal gas accumulation. However, replacing regular rye bread by low-FODMAP bread without concomitant broader dietary changes does not improve quality of life or IBS-SSS. Nonetheless, inclusion of low-FODMAP rye bread in diet might be one way that IBS patients could increase their fibre intake.

Indexed as

BreadFermentationSecaleAbdominal PainAdultBreath TestsCross-Over StudiesDietDiet RecordsDisaccharidesDouble-Blind MethodFemaleHumansIrritable Bowel SyndromeMaleMiddle AgedDisaccharidesMonosaccharidesOligosaccharidesPolymerspolyol

Identifiers

PMID27417338
PMCPMC5113694

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.