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Showing 1–24 of 75 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: food containing dietary fiber Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Fiber Food Introduction in Pediatric Short Bowel Syndrome

NCT05432648
View directory record Official record
Conditions
Short Gut Syndrome
Interventions
Green bean puree
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
4 Months to 18 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Recruiting Phase 2 Interventional

Milk Thistle Clinical Trial in Pediatric NAFLD

NCT06477146
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease (NAFLD)
Interventions
Milk thistle (MT), Placebo, Lifestyle Modification, Fibroscan
Drug · Behavioral · Device
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
9 Years to 22 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ultra-processed Food Consumption, Gut Microbiota, and Glucose Homeostasis

NCT05358171
View directory record Official record
Conditions
Insulin Sensitivity, 24-hour Glucose Control
Interventions
HIgh UPF controlled diet, No UPF controlled diet
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 28, 2026, 3:28 PM 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 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Food Containing Resistant Starch Type 4 and Postprandial Glycemic Response

NCT03844503
View directory record Official record
Conditions
Healthy
Interventions
Cereal Bar no fiber, Cereal bar with 10 g fiber, Cereal bar with 20 g fiber
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 45 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose Effects of SCF on Calcium Metabolism and GI Microflora in Adolescents

NCT01660503
View directory record Official record
Conditions
Osteoporosis
Interventions
0 grams SCF, 10 grams SCF, 20 grams SCF
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
9 Years to 13 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 3, 2018 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional

The Effects of a High Protein Diet on Microbiota, Gastrointestinal Function and Wellness in Older Women

NCT02445560
View directory record Official record
Conditions
Aging
Interventions
Probiotic capsule and Fiber Sachet, Probiotic capsule and Placebo sachet, Placebo capsule and Fiber Sachet, Placebo capsule and Placebo sachet
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
65 Years and older · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
2
States / cities
Gainesville, Florida • Ocala, Florida
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 28, 2026, 3:28 PM EDT
Recruiting Not applicable Interventional

Fiber Smoothie Supplement

NCT06896240
View directory record Official record
Conditions
Total Knee Arthroplasty Revision, Inflammatory Markers, Gut Microbiota
Interventions
Assigned Interventions
Dietary Supplement
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
40 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 27, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Satiety Response After Mixed Fiber Doses

NCT00889993
View directory record Official record
Conditions
Satiety
Interventions
Mixed Fiber Supplement
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 28, 2012 · Synced Sep 28, 2026, 3:28 PM 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 28, 2026, 3:28 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Ketone Conferred Resiliency Against Sleep Restriction With Nutritional Intervention.

NCT06075914
View directory record Official record
Conditions
Sleep Deprivation, Nutritional Intervention
Interventions
Ketogenic Intervention, Mediterranean Intervention, Placebo, Ketone Ester
Other · Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 28, 2026, 3:28 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 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of an Intermittent Fasting and Dietary Supplement Regimen on Glycemic Variability

NCT05493553
View directory record Official record
Conditions
Healthy, Impaired Glucose Tolerance
Interventions
Dietary supplement regimen, Dietary supplement and intermittent fasting regimen
Dietary Supplement · Other
Lead sponsor
Unicity International, Inc.
Industry
Eligibility
30 Years to 69 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Young Adult Eating Habits

NCT05550818
View directory record Official record
Conditions
Eating Behavior, Eating Habit
Interventions
High Ultra Processed Food Diet, No Ultra Processed Food Diet
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years to 25 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Blacksburg, Virginia • Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Not yet recruiting Not applicable Interventional

Whole Food Fibers for Support of Key Gut Bacteria for Human Health

NCT07840170
View directory record Official record
Conditions
Prediabetes or Overweight
Interventions
Whole food fiber mixture, inulin
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Development of a Novel Method to Study in Vivo Fatty Acid Metabolism Using Stable Isotope Labeled Fatty Acids in Humans

NCT02312492
View directory record Official record
Conditions
Dyslipidemia
Interventions
Oleic Diet, Palmitic Diet, Stearic Diet
Other
Lead sponsor
Tufts University
Other
Eligibility
50 Years to 85 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 28, 2026, 3:28 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pulse Education and Children

NCT07648446
View directory record Official record
Conditions
Dysbiosis, Cardiometabolic Health Indicators, Education on Feeding and Health Status, Gut Motility
Interventions
Education Only, Education + Pulse Provision, Cooking Class
Other
Lead sponsor
Florida State University
Other
Eligibility
6 Years to 13 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 28, 2026, 3:28 PM 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 6, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Melatonin-Micronutrients for Osteopenia Treatment Study

NCT01870115
View directory record Official record
Conditions
Osteoporosis, Osteopenia
Interventions
Fiber Pill, Melatonin, Strontium citrate, Vitamins D3 and K2
Dietary Supplement
Lead sponsor
Duquesne University
Other
Eligibility
Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 13, 2018 · Synced Sep 28, 2026, 3:28 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Persea Americana for Total Health (PATH)-2

NCT05941728
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Avocado, Oil + Fiber, Average American Diet
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
25 Years to 74 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 12, 2023 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Satiety and Alcohol Challenge

NCT06576674
View directory record Official record
Conditions
Alcohol Drinking
Interventions
Dietary Fiber + Green Tea Extract, Alcohol, Aspartame Placebo Supplement
Dietary Supplement · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
21 Years to 45 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of a Prebiotic and Probiotic Supplement to Provide Relief From Symptoms Associated With Bacterial Vaginosis and Yeast Infections.

NCT06665126
View directory record Official record
Conditions
Bacterial Vaginosis, Yeast Infection
Interventions
Prebiotic + Probiotic Supplement, Active Placebo Supplement, Excipient Placebo Supplement
Dietary Supplement
Lead sponsor
Happy V
Industry
Eligibility
25 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 28, 2026, 3:28 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Fiber's Utilization for Energy and Life

NCT05934357
View directory record Official record
Conditions
Diet Habit
Interventions
Fiber, Control
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
22 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 5, 2023 · Synced Sep 28, 2026, 3:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

What's Hopping? Cricket Protein and Human Gut Microbiota

NCT03383341
View directory record Official record
Conditions
Healthy
Interventions
Cricket Protein Powder, Placebo control
Dietary Supplement · Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 28, 2026, 3:28 PM EDT