Comparing traditional dietary advice to a low FODMAP diet for postprandial dyspepsia

Randomised Trial of Traditional Dietary Advice Versus a Low FODMAP Diet in Postprandial Functional Dyspepsia

NA · Sheffield Teaching Hospitals NHS Foundation Trust · NCT05810168

This study tests whether following a low FODMAP diet helps people with meal-related stomach issues feel better compared to traditional dietary advice.

Quick facts

PhaseNA
Study typeInterventional
Enrollment70 (estimated)
Ages18 Years to 60 Years
SexAll
SponsorSheffield Teaching Hospitals NHS Foundation Trust (other)
Locations1 site (Sheffield, South Yorkshire)
Trial IDNCT05810168 on ClinicalTrials.gov

What this trial studies

This trial evaluates the effectiveness of traditional dietary advice versus a low FODMAP diet in patients suffering from postprandial functional dyspepsia, a condition characterized by meal-related symptoms. Seventy patients will be randomly assigned to either receive traditional dietary recommendations or follow a low FODMAP diet, which restricts certain fermentable carbohydrates. The study aims to assess symptom relief and overall health improvement through dietary modifications. Participants will complete questionnaires to evaluate their symptoms and dietary adherence throughout the trial.

Who should consider this trial

Good fit: Ideal candidates are individuals who meet the Rome IV criteria for postprandial functional dyspepsia and have had a normal upper gastrointestinal endoscopy within the last three years.

Not a fit: Patients with organic gastrointestinal diseases, severe systemic diseases, or those currently undergoing other dietary interventions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide effective dietary strategies to alleviate symptoms of postprandial dyspepsia for many patients.

How similar studies have performed: While dietary modifications for dyspepsia have been explored, this specific comparison of traditional advice versus a low FODMAP diet is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Fulfil Rome IV symptoms criteria for postprandial functional dyspepsia
* Normal upper gastrointestinal endoscopy within last 3years
* Online access
* English literate

Exclusion Criteria:

* Organic gastrointestinal diseases (e.g. inflammatory bowel disease, GI cancer, coeliac disease)
* Major abdominal surgery (except laparoscopy, appendectomy, cholecystectomy)
* Documented H.pylori in the last 3 months
* History of eating disorders
* Body mass index \<20
* Current dietary interventions
* Current use of opioids or anti-inflammatory drugs
* Severe systemic disease (e.g. cardiac, renal, respiratory) necessitating frequent medical consultations)
* Pregnant
* Diabetes mellitus
* Scleroderma
* Memory impairment

Where this trial is running

Sheffield, South Yorkshire

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Dyspepsia, Functional Gastrointestinal Disorders

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.