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Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: low fodmap diet Clear all
Completed Not applicable Interventional Results available

Effects of Low FODMAP Diet on Colonic Epithelial Physiology in Diarrhea-predominant Irritable Bowel Syndrome

NCT04542018
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
a low FODMAP diet for 4 weeks
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Do Biomarkers Predict Response to a Pediatric Chronic Pain Symptom Management Program?

NCT03823742
View directory record Official record
Conditions
Irritable Bowel Syndrome, Functional Abdominal Pain Syndrome, Functional Gastrointestinal Disorders, Functional Bowel Disorder, Functional Abdominal Pain, Functional Abdominal Pain Disorders
Interventions
Cognitive Behavioral Therapy, Low FODMAP Diet
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 12 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional Results available

Evaluating the Efficacy of the Mediterranean Diet to the Low- Fermentable, Oligosaccharides, Disaccharides, Monosaccharides, and Polyols (FODMAP) Diet in Treating Irritable Bowel Syndrome(IBS)

NCT05807919
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Diet low in all FODMAP groups, Diet - Mediterranean
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 70 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Effects of a Novel Machine Learning Mobile App on Diet Adherence in Individuals Following the Low Fodmap Diet

NCT04256551
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
Heali mobile application + Registered Dietitian, Heali mobile application, Standard Dietary Education
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Sep 8, 2026, 10:49 PM EDT
Recruiting Early Phase 1 Interventional

Novel Pilot Study to Treat Symptoms of IBS With Diarrhea Using Combination Therapy of a Low-FODMAP Diet and a Neuromodulator

NCT06684470
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome, Diarrhea
Interventions
Mirtazapine, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Phase 2 Interventional

Comparing the Effectiveness of Two Dietary Interventions for Fecal Incontinence

NCT02828384
View directory record Official record
Conditions
Fecal Incontinence
Interventions
low fodmap diet, Psyllium
Other · Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 8, 2026, 10:49 PM EDT
Withdrawn Early Phase 1 Interventional

Novel Supplement-based Therapy for the Treatment of Small Intestinal Bacterial Overgrowth

NCT03420976
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth
Interventions
Novel Supplement Based Therapy
Dietary Supplement
Lead sponsor
Atrium Innovations
Industry
Eligibility
19 Years to 84 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Oxford, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

FODMAP Reintroduction in Irritable Bowel Syndrome

NCT03245645
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea, Irritable Bowel Syndrome With Mixed Bowel Habits
Interventions
Dietary Intervention
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Implementing a Low FODMAP Diet in Irritable Bowel Syndrome Patients

NCT03948854
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
Registered dietitian, On-line video program, Printed handout, Dietitian-led group
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Sep 8, 2026, 10:49 PM EDT
Recruiting Not applicable Interventional

Systemic Sclerosis DIet for GastrointESTinal Symptoms

NCT07402226
View directory record Official record
Conditions
Systemic Sclerosis (SSc)
Interventions
Diet 1: Restriction of fermentable carbohydrates, Diet 2: Elimination of foods harmful to gut barrier and microbiome, Diet 3: Regular meal patterns, soluble fiber, and portion control
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Diet Reintroduction Study in Irritable Bowel Syndrome

NCT03052439
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
FODMAP
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 2, 2020 · Synced Sep 8, 2026, 10:49 PM EDT
Not listed Not applicable Interventional

Effect of Diet on Gulf War Illness

NCT02881944
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Low FODMAP Diet, High FODMAP Diet
Behavioral
Lead sponsor
Ashok Tuteja
Federal
Eligibility
25 Years to 90 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

The Effect of the Low Fodmap Diet in Children With Autism Spectrum Disorders

NCT04054349
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Low FODMAP diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
6 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Sep 8, 2026, 10:49 PM EDT
Recruiting Not applicable Interventional

Low FODMAP Plus PEG 3350 for the Treatment of Patients with Irritable Bowel Syndrome-Constipation

NCT03687814
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Low FODMAP diet/PEG 3350, sham diet/PEG 3350
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 3, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Mindfulness-Based Eating in Patients With Irritable Bowel Syndrome

NCT02681666
View directory record Official record
Conditions
Abdominal Pain, Irritable Bowel Syndrome, IBS
Interventions
Dietary intervention, Irritable Bowel Syndrome eating awareness training
Dietary Supplement · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 11, 2018 · Synced Sep 8, 2026, 10:49 PM EDT
Terminated Early Phase 1 Interventional Results available

Effect of a Low FODMAP Diet on SIBO Breath Test Positivity

NCT04627727
View directory record Official record
Conditions
SIBO
Interventions
low FODMAP diet
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Withdrawn Not applicable Interventional

Study to Evaluate Dietary Modification in Patients With Functional Dyspepsia.

NCT02863822
View directory record Official record
Conditions
Dyspepsia, Dietary Modification
Interventions
Low FODMAP Diet, Choose My Plate Diet
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Park Ridge, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Sep 8, 2026, 10:49 PM EDT
Not listed Not applicable Interventional

Impact of Two Dietary Interventions on Simple Carbohydrate Intolerance

NCT06057376
View directory record Official record
Conditions
Carbohydrate Intolerance
Interventions
Low-FODMAP diet group (LFD), Low Sugar diet group (LAS)
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
5 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Springfield, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Sep 8, 2026, 10:49 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Treating Chronic Pouchitis With a Low FODMAP Diet

NCT04640155
View directory record Official record
Conditions
Pouchitis
Interventions
Low FODMAP Diet, Regular Diet
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Effects of Low FODMAP Diet on Leaky Gut

NCT04526808
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
FODMAP diet
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Completed Phase 4 Interventional Results available

A Longitudinal Study to Identify IBS Phenotypes Using Fecal Microbiota and Hydrogen Breath Testing

NCT03219528
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Rifaximin 550 MG, Low FODMAP Diet
Drug · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 8, 2026, 10:49 PM EDT
Recruiting Not applicable Interventional

IBS Skin Patch Test Food Allergy Study

NCT06288672
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
True avoidance diet, Sham avoidance diet
Other
Lead sponsor
IBS-80, LLC
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
North Wales, Pennsylvania • Barboursville, West Virginia
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 8, 2026, 10:49 PM EDT