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ClinicalTrials.gov public records Last synced Oct 22, 2026, 11:58 AM EDT

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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fiber Inulin Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Constipation Fiber Trial

NCT02193997
View directory record Official record
Conditions
Functional Constipation in Children
Interventions
Fiber, Placebo
Other
Lead sponsor
Warren Bishop
Other
Eligibility
2 Years to 16 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 28, 2017 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Oral Fructanase Administration on Gastrointestinal Symptoms After Inulin Challenge in Healthy Adults

NCT06628869
View directory record Official record
Conditions
Digestive Health, Gastrointestinal Health, FODMAP Intolerance, Food Sensitivity
Interventions
Fructanase, Maltodextrin placebo
Dietary Supplement
Lead sponsor
BIO-CAT, Inc.
Industry
Eligibility
20 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

High-Resolution Measurements of Diet-Microbiome Interactions

NCT07856823
View directory record Official record
Conditions
IBS (Irritable Bowel Syndrome)
Interventions
Inulin, Low-fiber control breakfast shake, Atmo Gas-Sensing Capsule, CapScan Regional Fluid-Sampling Capsule
Dietary Supplement · Other · Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

The Role of Microbiome Reprogramming on Liver Fat Accumulation

NCT03914495
View directory record Official record
Conditions
NAFLD
Interventions
Inulin, Placebo
Dietary Supplement
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
35 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Oct 22, 2026, 11:58 AM EDT
Not listed Not applicable Interventional

Gut Microbiome and p-Inulin in CKD - TarGut CKD Study

NCT03348592
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Oligofructose-enriched inulin (p-inulin), No treatment
Dietary Supplement · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 21, 2017 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Next-Generation Synbiotic in Individuals With Overweight or Obesity

NCT06213480
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Synbiotic Group, Placebo Group
Dietary Supplement · Other
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 50 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of Different Sugar Replacer Combinations on Gastrointestinal Tolerance

NCT05794100
View directory record Official record
Conditions
Tolerance, Healthy Population
Interventions
Acute intake of one of the products (active comparator 1 to 9) or Placebo comparator
Other
Lead sponsor
Mondelēz International, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 3, 2023 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrative Personal Omics Profiling for Dynamic Molecular Phenotypes Monitoring During Fiber Supplementation

NCT04706858
View directory record Official record
Conditions
Prebiotics
Interventions
Dietary fiber supplementation
Dietary Supplement
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2021 · Synced Oct 22, 2026, 11:58 AM EDT
Recruiting Phase 2 Interventional

A Clinical Trial of Soluble Fiber for Asthma

NCT06372249
View directory record Official record
Conditions
Asthma in Children
Interventions
Inulin
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Not yet recruiting Phase 2 Interventional

Inulin Supplementation for Reducing Inflammation and Knee Pain in Older Adults With Osteoarthritis

NCT07189585
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
inulin, Maltodextrin (Placebo)
Drug
Lead sponsor
Yale University
Other
Eligibility
40 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Trial to Assess the Effects of Diets With and Without Inulin on Energy Expenditure in Adults.

NCT06923332
View directory record Official record
Conditions
Healthy, Overweight or Obese Adults
Interventions
High Fiber bar with Inulin, Low fiber bar - no inulin
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gastrointestinal Toleration of Inulin Products

NCT00958529
View directory record Official record
Conditions
Healthy
Interventions
Inulin Fiber Supplement
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 10, 2017 · Synced Oct 22, 2026, 11:58 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Irritable Bowel Syndrome and Control Volunteers: Diet Challenge

NCT06668922
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Inulin
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

High Fiber in Parkinson's Disease

NCT04976959
View directory record Official record
Conditions
Parkinson Disease
Interventions
High Fiber supplement
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
50 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 26, 2024 · Synced Oct 22, 2026, 11:58 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Chicory Fiber Effect on Satiety and GI Tolerance

NCT04067362
View directory record Official record
Conditions
Diet, Healthy
Interventions
food containing dietary fiber
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Satiety Response of Four Dietary Fibers

NCT01233024
View directory record Official record
Conditions
Healthy
Interventions
Control, Soluble corn fiber, Resistant starch, Fructooligosaccharide, Inulin
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 29, 2012 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study

NCT04543877
View directory record Official record
Conditions
Inflammation, Vaccine, Intestinal Permeability, Typhoid Fever
Interventions
Inulin, Maltodextrin, Ty21a Typhoid Fever Vaccine
Dietary Supplement · Biological
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 22, 2026, 11:58 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Healthy Volunteer Short Chain Fatty Acid Study

NCT05254340
View directory record Official record
Conditions
Healthy
Interventions
Inulin
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 75 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Oct 22, 2026, 11:58 AM EDT
Not yet recruiting Not applicable Interventional

Comparing Prebiotic Fiber Supplements for Gut Health and Digestive Comfort

NCT07525180
View directory record Official record
Conditions
Healthy Participants
Interventions
LOAM, Inulin, Cellulose Placebo
Dietary Supplement
Lead sponsor
Ventoscity LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional

Fermented Milk Product With Probiotic and Its Impact on Mood of Patients With Treatment Resistant Depression

NCT03317678
View directory record Official record
Conditions
Depression
Interventions
BioKefir, Non-fermented milk
Dietary Supplement
Lead sponsor
Rush University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 9, 2022 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Trial to Assess Gastrointestinal Responses to Dietary Fibers in Adults Using Weight Loss Medications

NCT07012317
View directory record Official record
Conditions
Gastrointestinal Symptoms, Weight Loss, GLP-1
Interventions
High Fiber Bar with Inulin, High Fiber bar with Fiber Blend, High Fiber Bar with Resistant Starch type 4, Low Fiber Bar
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
25 Years to 64 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami Gardens, Florida • Port Saint Lucie, Florida
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Not applicable Interventional

Prebiotics, Gut Microbiota, and Cardiometabolic Health

NCT02346838
View directory record Official record
Conditions
Prediabetes
Interventions
Inulin, Placebo
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study of a Prebiotic Supplement to Mitigate Excessive Weight Gain Among Physicians in Residency

NCT04498455
View directory record Official record
Conditions
Weight Gain Trajectory, Metabolic Syndrome
Interventions
Prebiotin
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Oct 22, 2026, 11:58 AM EDT
Completed Phase 2 Interventional Results available

Prebiotics and Metformin Improve Gut and Hormones in Type 2 Diabetes in Youth (MIGHTY-fiber)

NCT04209075
View directory record Official record
Conditions
Diabetes
Interventions
Biomebliss, Metformin, Placebo
Dietary Supplement · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
10 Years to 25 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2022 · Synced Oct 22, 2026, 11:58 AM EDT