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Food for Irritable Bowel Syndrome. The FIBS study

An investigation into the effect of FODMAPS(Fermentable Oligo-, di- and mono saccharides and polyols) dietary education in conjunction with hydrogen breath testing on symptom severity and quality of life for patients with Irritable Bowel Syndrome.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12611000556943
Acronym
Food for Irritable Bowel Syndrome (FIBS)
Enrollment
50
Registered
2011-06-01
Start date
2011-11-01
Completion date
2012-08-01
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study is looking at a new style of dietary treatment for Irritable Bowel Syndrome (IBS). The aim of the study is to see how effective the treatment is long-term and to identify reasons why patients may not follow the treatment even if it is beneficial. It is known that people with IBS get increased wind, bloating and abdominal pain together with an altered bowel habit when they eat some foods which most people are able to digest without problems. Patients who are likely to respond to this treatment will be referred to the dietitian who will provide education on how to limit those foods in the diet. Hydrogen breath tests can be used to identify people most likely to malabsorb these foods. Participants will be asked to fill out three different questionnaires on three separate occasions (baseline, 3 and 6 months) which provide information on how IBS affects their life and what they eat. Analysis will provide data about the long-term effect of the diet however, it is expected that patients might not comply long-term to this diet because the foods recommended in this treatment are more expensive than a usual diet open ended questions will be asked about barriers to making the recommended dietary changes and an estimation of the increased cost will be calculated.

Interventions

Participants in the treatment group will receive four dietary education sessions (one hour for the first one, then 3x30 minutes for follow up) with the dietitian during the three month period. The dietary session will be individual with the dietitian explaining the mechanism for a low FODMAPS diet, assessing the participants diets and giving guidance on adapting the participants diet

Sponsors

University of Otago
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

Irritable Bowel Syndrome meeting the ROME III criteria

Exclusion criteria

currently seeing a dietitian, having gastrointestinal surgery, not speaking English

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026