NIH-funded research NIH-funded research

Investigating how certain dietary sugars affect diarrhea in IBS patients

Official title: Role of FODMAPs in the pathophysiology of diarrhea-predominant Irritable bowel syndrome

Funded at University of Michigan at Ann Arbor · NIH-10894002 · Data updated 2026-11-12

This study is looking at how certain carbohydrates called FODMAPs affect people with diarrhea-predominant Irritable Bowel Syndrome (IBS-D) and aims to find out how a low FODMAP diet can help ease their symptoms, so patients may be asked to try different diets and share their experiences.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionUniversity of Michigan at Ann Arbor
NIH-funded
Lab location1 site (Ann Arbor, United States)
Project startSeptember 1, 2021
Project endJuly 31, 2026
Funding year2024
Award (this year)$196,560
NIH project number5K23DK129327-04
Project IDNIH-10894002 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals diagnosed with diarrhea-predominant Irritable Bowel Syndrome (IBS-D).

Less likely to help

Patients with other forms of Irritable Bowel Syndrome or those without IBS may not benefit from this research.

What this research studies

This research focuses on understanding the role of FODMAPs, a group of fermentable carbohydrates, in causing symptoms of diarrhea-predominant Irritable Bowel Syndrome (IBS-D). The study aims to identify the mechanisms by which high FODMAP diets exacerbate symptoms and how low FODMAP diets can provide relief for many patients. By examining changes in gut bacteria and the colonic barrier function, the research seeks to develop targeted therapies that could improve treatment outcomes for IBS-D patients. Patients may be involved in dietary interventions and assessments to help clarify these mechanisms.

Why it matters

Potential benefit: If successful, this research could lead to more effective dietary recommendations and treatments for patients suffering from IBS-D.

How similar studies have gone: Previous research has shown that dietary interventions, particularly low FODMAP diets, can significantly improve symptoms in IBS patients, indicating a promising avenue for further exploration.

Where this research is happening

  • University of Michigan at Ann Arbor
    Ann Arbor, United States
    Active

Researchers

  • Principal investigator: Singh, Prashant — University of Michigan at Ann Arbor
  • Study coordinator: Singh, Prashant

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 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.