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 type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Michigan at Ann Arbor NIH-funded |
| Lab location | 1 site (Ann Arbor, United States) |
| Project start | September 1, 2021 |
| Project end | July 31, 2026 |
| Funding year | 2024 |
| Award (this year) | $196,560 |
| NIH project number | 5K23DK129327-04 |
| Project ID | NIH-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.
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Identifying biomarkers for diarrhea-predominant irritable bowel syndrome using stool samples
This study is looking to make it easier to diagnose diarrhea-predominant irritable bowel syndrome (IBS-D) by checking stool samples for certain markers, so if you have IBS-D, researchers want to find a simple and non-invasive way to help identify your condition better.
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Creating a diary tool to track symptoms of diarrhea in irritable bowel syndrome.
This study is creating a helpful diary tool for people with diarrhea-predominant irritable bowel syndrome (IBS-D) to track their symptoms and experiences, so that we can better understand their needs and improve treatment options.
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PediCODE: A Biorepository and Consortium for CoDE - Congenital Diarrhea and Enteropathy
A nationwide effort to collect clinical data and patient-derived samples to uncover the genetic causes of congenital diarrhea and enteropathy and to build a resource that helps researchers study these diseases.
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PediCODE Consortium and Biobank for Congenital Diarrhea and Enteropathy
Creating a multi-center team and biobank to find genetic causes of congenital diarrhea and enteropathy in children and collect samples that can help future research.
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Mobile health tool to guide dehydration care for acute diarrhea across all ages
A mobile app uses AI to help people of all ages determine dehydration risk during acute diarrhea and guide rehydration decisions.
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Understanding how certain gut bacteria cause diarrhea in children and how it works in the gut lining
This project looks at how infections from ETEC and EPEC bacteria cause diarrhea, especially in children, and uses a mouse model and human-derived gut cell systems to uncover the underlying mechanisms.
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.