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Showing 1–24 of 336 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Dietary Fiber Clear all
Completed Not applicable Interventional

The Effects of Fiber Fortified Foods to the Diets of Chronic Kidney Disease Patients

NCT01842087
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Control Food, Fiber Fortified Food
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Preventing Excessive Weight Gain and Maternal and Infant Fat Accretion

NCT04868110
View directory record Official record
Conditions
Gestational Weight Gain, Maternal Fat Accretion, Infant Fat Accretion
Interventions
High fiber diet
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2025 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Results available

Berries, Bugs, and the Blues

NCT05817383
View directory record Official record
Conditions
Depressive Symptoms
Interventions
Freeze-dried Blueberry Powder, Placebo Powder
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
65 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 3, 2026, 10:25 AM EDT
Completed No phase listed Observational

Fiber Intake in an End Stage Renal Disease (ESRD) Population Followed Over 2 Years

NCT00874380
View directory record Official record
Conditions
Cardiovascular Outcome, Kalemia Control, Lipid Profile
Interventions
Increasing total fiber intake in patient's diet
Other
Lead sponsor
Northwell Health
Other
Eligibility
Not listed
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Staten Island, New York
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Laxation and Satiety Response of Novel Dietary Fibers

NCT01102881
View directory record Official record
Conditions
Healthy
Interventions
Glucose polymer fiber, Fiber made from corn starch, placebo
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 8, 2010 · Synced Sep 3, 2026, 10:25 AM EDT
Recruiting Phase 1 Interventional

Fecal Microbiota Transplant and Dietary Fiber Supplementation for the Treatment of Gut Graft Versus Host Disease

NCT05067595
View directory record Official record
Conditions
Intestinal Graft Versus Host Disease
Interventions
Colonoscopy, Fecal Microbiota Transplantation, Nutritional Supplementation, Survey Administration, Biospecimen Collection
Procedure · Biological · Dietary Supplement + 1 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional

High Fat Diet II on Weight Loss

NCT00525850
View directory record Official record
Conditions
Obesity
Interventions
high fat diet, low saturated fat diet
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Aug 1, 2011 · Synced Sep 3, 2026, 10:25 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 12, 2021 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of a Fiber Supplement on Gut Health

NCT07755735
View directory record Official record
Conditions
Gut Health, Bloating, Irregular Bowel Movements, Gastrointestinal Symptoms
Interventions
Active Supplement, Placebo Comparator
Dietary Supplement
Lead sponsor
Belli Welli Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional

Effects of High Dietary Fiber Supplementation in Diabetic Chronic Kidney Disease

NCT01838330
View directory record Official record
Conditions
Kidney Disease
Interventions
psyllium
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 90 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 10, 2016 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional

Investigation of Supra Fiber in the Treatment of Adults With Constipation

NCT01288508
View directory record Official record
Conditions
Constipation
Interventions
Supra Fiber, Psyllium
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 75 Years
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 16, 2014 · Synced Sep 3, 2026, 10:25 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Bioavailability Study of Hemp Phenolics

NCT06098001
View directory record Official record
Conditions
Bioavailability, Metabolites, Excretion
Interventions
Low dose dietary fiber, High dose dietary fiber
Dietary Supplement
Lead sponsor
Brightseed
Industry
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fiber Regimens for Constipation Symptoms

NCT03845673
View directory record Official record
Conditions
Constipation
Interventions
Psyllium, Bowel recipe
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Different Types of Resistant Starch

NCT00930956
View directory record Official record
Conditions
Postprandial Hyperglycemia
Interventions
Resistant Starch
Dietary Supplement
Lead sponsor
Kansas State University
Other
Eligibility
18 Years to 35 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2010 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Fiber on Glycemic Index

NCT02615327
View directory record Official record
Conditions
Healthy
Interventions
8 g Polydextrose, 12 g Polydextrose, 16 g Polydextrose, Placebo
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessing the Dose Response of a Lead Fiber Snack Prototype

NCT04729816
View directory record Official record
Conditions
Microbiota, Gastrointestinal Microbiome
Interventions
Controlled, high fat/low fiber diet background diet, sequentially supplemented with an escalating dose of a fiber-blend snack food.
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Time Restricted Eating With or Without a Fiber Supplement for Weight Management in Pediatric Cancer Survivors

NCT05826184
View directory record Official record
Conditions
Weight, Body
Interventions
Time restircted eating, Time restricted eating + prebiotic
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 39 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional

Comparative Effectiveness of Microprocessor Controlled and Carbon Fiber Prosthetic Feet in Transtibial Amputees

NCT02864693
View directory record Official record
Conditions
Amputation
Interventions
Kinnex, Pacifica LP
Device
Lead sponsor
Ability Prosthetics and Orthotics, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
3
States / cities
Hagerstown, Maryland • Charlotte, North Carolina • York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Pregabalin in Treatment of Neuropathic Pain in Patients With Idiopathic Small Fiber Neuropathy

NCT02607254
View directory record Official record
Conditions
Idiopathic Small Fiber Neuropathy
Interventions
Pregabalin, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2018 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Whole Grain and Fiber Addition Study

NCT03623308
View directory record Official record
Conditions
Healthy
Interventions
Fiber cereal
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Phase 3 Interventional

Diet and PSA Levels in Patients With Prostate Cancer

NCT00003367
View directory record Official record
Conditions
Prostate Cancer
Interventions
green tea, soy protein isolate, vitamin E
Dietary Supplement
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2002
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 25, 2013 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Protein and Fiber at Breakfast on Appetite, Blood Sugar, and Cholesterol

NCT02169245
View directory record Official record
Conditions
Brain Activity, Appetite, Ingestive Behavior, Glucose Control, Cholesterol
Interventions
Dietary control of protein and fiber intake at breakfast
Other
Lead sponsor
Purdue University
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
West Lafayete, Indiana • West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Sep 3, 2026, 10:25 AM EDT
Completed Phase 1Phase 2 Interventional

Scalp Psoriasis Treatment With a Fiber Optic Comb

NCT00007293
View directory record Official record
Conditions
Psoriasis
Interventions
UV-B Lightsource and Fiber Optic Comb
Device
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 3, 2007 · Synced Sep 3, 2026, 10:25 AM EDT
Terminated Not applicable Interventional

An Open, Non-comparative, Multicenter Investigation to Evaluate the Safety and Performance of Exufiber Ag+, a Gelling Fiber Silver Dressing, When Used in Medium to High Exuding Chronic Wounds

NCT05494450
View directory record Official record
Conditions
Pressure Ulcer, Diabetic Foot Ulcer, Venous Leg Ulcer
Interventions
ExufiberAG+
Device
Lead sponsor
Molnlycke Health Care AB
Industry
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
2
States / cities
San Francisco, California • Miamisburg, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 3, 2026, 10:25 AM EDT