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Showing 1–24 of 112 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Dietary Fiber Supplement Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of a Fermented Dairy Protein With Prebiotic Fiber on GI Complaints

NCT06946017
View directory record Official record
Conditions
Digestive Health, Quality of Life
Interventions
Fermented dairy protein with prebiotic fiber supplement, Control placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 50 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 12, 2026, 4:58 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 9, 2017 · Synced Sep 12, 2026, 4:58 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of an Oat Fiber Supplement on Health

NCT07714135
View directory record Official record
Conditions
Supplementation Efficacy in Health Adults on Plasticizer Removal
Interventions
Oat Fiber, Placebo
Dietary Supplement
Lead sponsor
California Polytechnic State University-San Luis Obispo
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
San Luis Obispo, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Carbohydrate in Diet and Supplements on the Gastrointestinal Tolerability of LIK066

NCT03198767
View directory record Official record
Conditions
Obesity
Interventions
LIK066, Carbohydrate 50%, Carbohydrate 25%, Carbohydrate 8%, Carbohydrate 0%, Psyllium, Calcium carbonate
Drug · Dietary Supplement
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 4, 2021 · Synced Sep 12, 2026, 4:58 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Berries, Inflammation, and Gut Microbiome

NCT04100200
View directory record Official record
Conditions
Overweight or Obesity, Healthy
Interventions
Mixed berries, FOS, Control, Combination
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 60 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 12, 2026, 4:58 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 7, 2020 · Synced Sep 12, 2026, 4:58 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 16, 2020 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving the Iron Status of Athletes With Pre-, Pro- and Synbiotics

NCT06021171
View directory record Official record
Conditions
Iron-deficiency, Iron Deficiency Anemia, Iron Deficiency (Without Anemia)
Interventions
Partially hydrolyzed guar gum + bifidobacterium lactis, Partially hydrolyzed guar gum, Maltodextrin
Dietary Supplement
Lead sponsor
King's College
Other
Eligibility
18 Years to 35 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Wilkes-Barre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Avocado Snacks in a Prediabetic Population

NCT05263011
View directory record Official record
Conditions
PreDiabetes
Interventions
Avocado, low fat yogurt, low fat yogurt + fiber +fat
Other
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
25 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Results available

Brain Energy for Amyloid Transformation in Alzheimer's Disease Study

NCT03472664
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
low carbohydrate/high fat diet, low fat/high carbohydrate diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years to 85 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protein-Prebiotic Wellbeing Study

NCT05303753
View directory record Official record
Conditions
Digestive Health, Quality of Life
Interventions
fermented dairy protein with prebiotic fiber
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 35 Years
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional

Fiber Supplementation After Bariatric Surgery

NCT05653648
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Potato starch
Dietary Supplement
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 12, 2026, 4:58 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 26, 2026 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Evaluation of Cow Milk-Based Formulas

NCT00518414
View directory record Official record
Conditions
Term Infants
Interventions
Marketed infant formula with DHA and ARA, Milk-based infant formula with DHA and ARA, Milk-based formula with DHA, ARA, prebiotics
Other
Lead sponsor
Mead Johnson Nutrition
Industry
Eligibility
10 Days to 18 Days
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
9
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Tamarac, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2015 · Synced Sep 12, 2026, 4:58 AM EDT
Recruiting No phase listed Observational

Post-Stroke Sensory Reweighting on Walking and Balance Outcomes

NCT06727097
View directory record Official record
Conditions
Ischemic Stroke
Interventions
Posturography, Walking Speed, Instrumented 7M Timed UP and GO, Fall Event Records, MRI (3T)
Diagnostic Test · Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional

Effects of Resistant Starch Diet on the Gut Microbiome in Chronic Kidney Disease

NCT03356990
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Resistant Starch
Dietary Supplement
Lead sponsor
University of Arkansas
Other
Eligibility
5 Years to 85 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Sep 12, 2026, 4:58 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 20, 2017 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of a Chickpea Pasta on Gut Health, Blood Glucose, and Overall Health

NCT07264465
View directory record Official record
Conditions
Gut Health, Gastrointestinal Health
Interventions
Chickpea Pasta
Dietary Supplement
Lead sponsor
Banza LLC
Industry
Eligibility
21 Years to 44 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional

Prebiotic in Preterm Infants

NCT03306316
View directory record Official record
Conditions
Preterm Infant, Development, Infant, Nutrition
Interventions
Prebiotic, Dextrose Control
Dietary Supplement
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
7 Days to 10 Days
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Sep 12, 2026, 4:58 AM EDT
Recruiting Not applicable Interventional

Oral Nutritional Optimization in Total Joint Arthroplasty

NCT04210284
View directory record Official record
Conditions
Osteoarthritis
Interventions
Ensure
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
55 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Alpha Lipoic Acid Supplementation on Metabolic Syndrome Markers in Young Overweight or Obese Males

NCT03342599
View directory record Official record
Conditions
Metabolic Syndrome, Obesity
Interventions
Alpha Lipoic Acid Supplement, Placebo
Dietary Supplement
Lead sponsor
University of La Verne
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
La Verne, California
Source: ClinicalTrials.gov public record
Updated Nov 16, 2017 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Intervention for Visceral Adiposity

NCT01350518
View directory record Official record
Conditions
Obesity
Interventions
Benefiber, TrueLemon
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
20 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Variability in Microbial Response to Dietary Fiber

NCT06023940
View directory record Official record
Conditions
Microbial Colonization
Interventions
High fiber
Dietary Supplement
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
45 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Sep 12, 2026, 4:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Compare Effects of a Soluble Fiber on Weight and Blood Cholesterol

NCT00682916
View directory record Official record
Conditions
Obesity
Interventions
Y288
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 12, 2026, 4:58 AM EDT