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ClinicalTrials.gov public records Last synced Oct 21, 2026, 4:09 AM EDT

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Showing 1–24 of 116 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Low fiber diet Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Kombucha Consumption on the Microbiome in Healthy Subjects

NCT06484504
View directory record Official record
Conditions
Health Behavior
Interventions
Kombucha beverage
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Phase 2 Interventional

Examining the Effects of Diet on Health With an Online Program

NCT01967992
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Behavioral: Low Carbohydrate, Ketogenic Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Phase 2 Interventional

A Pilot Study of the Effects of Diet and Behavioral Interventions on Health in Diabetics

NCT01713764
View directory record Official record
Conditions
Diabetes Type II
Interventions
Low Carbohydrate Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 30, 2013 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cancer Dietary Objectives Study

NCT00561977
View directory record Official record
Conditions
Cancer, Heart Disease
Interventions
High Fiber Diet, low saturated fat diet, Combination diet
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 2, 2011 · Synced Oct 21, 2026, 4:09 AM EDT
Completed No phase listed Observational

Women's Healthy Eating and Living Study

NCT00003787
View directory record Official record
Conditions
Breast Cancer
Interventions
educational/counseling intervention, therapeutic dietary intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
3,088 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2018
U.S. locations
7
States / cities
Tucson, Arizona • La Jolla, California • Oakland, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2019 · Synced Oct 21, 2026, 4:09 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 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smart Underwear to Measure Diet-Induced Hydrogen Sulfide Production

NCT06802276
View directory record Official record
Conditions
Hydrogen Sulfide, Gastrointestinal Microbiome
Interventions
High Cysteine Diet, Low Cysteine Diet
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistant Starch Insulin Sensitivity Trial

NCT01027325
View directory record Official record
Conditions
Healthy, Cardiovascular Disease, Atherogenic Dyslipidemia, Insulin Resistance
Interventions
Dietary Intervention
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
20 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Berkeley, California • Oakland, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2013 · Synced Oct 21, 2026, 4:09 AM EDT
Recruiting Not applicable Interventional

Metabolic Impact of Prospective Controlled Mediterranean Type Diets on Prostate Cancer

NCT05590624
View directory record Official record
Conditions
Prostate Cancer
Interventions
Lower-Carbohydrate Med-t-Diet, Low-Fat Med-t-Diet
Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Oct 21, 2026, 4:09 AM EDT
Recruiting Phase 4 Interventional

Glucagon-like Peptide-1 Receptor Agonist (GLP-1 RA) and Diet in Inflammatory Bowel Disease (IBD) Patients

NCT06774079
View directory record Official record
Conditions
Crohn Disease
Interventions
Tirzepatide, Mediterranean diet
Drug · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Influence of Diet on GI Health

NCT04783142
View directory record Official record
Conditions
Healthy
Interventions
High-fiber, low-protein diet, Low-fiber, high-protein diet
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
2
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 15, 2023 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Determine the Digestive and Physiological Effects of an Extract From Bran in Healthy Men and Women

NCT01073969
View directory record Official record
Conditions
Healthy
Interventions
wheat bran extract, control wheat bran extract
Other
Lead sponsor
Kellogg Company
Industry
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Glen Ellyn, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2010 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Soluble Corn Fiber on Gastrointestinal Tolerance and Fecal Microbiome in Healthy Children

NCT05213494
View directory record Official record
Conditions
Gastrointestinal Tolerance
Interventions
Inulin, soluble corn fiber
Other
Lead sponsor
Tate & Lyle
Industry
Eligibility
3 Years to 9 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 28, 2022 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional

Low-Carbohydrate Diabetes Prevention Program Among Veterans With Prediabetes

NCT04881890
View directory record Official record
Conditions
PreDiabetes
Interventions
Low-Carbohydrate Diabetes Prevention Program
Behavioral
Lead sponsor
VA Ann Arbor Healthcare System
Federal
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Oct 21, 2026, 4:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Implementing a Low Fiber Diet vs. Regular Diet in Postoperative Colorectal Patients With Ileostomies

NCT04675606
View directory record Official record
Conditions
Ileostomy; Complications, Bowel Obstruction, Postoperative Ileus
Interventions
Regular diet, Low fiber diet
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2022 · Synced Oct 21, 2026, 4:09 AM EDT
Withdrawn Not applicable Interventional

Effect of a Dietary Intervention on Intracellular Lipid Levels, Insulin Sensitivity, and Glycemic Control in Type 2 Diabetes

NCT04088981
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Dietary intervention
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 27, 2025 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Modified Ketogenic-Mediterranean Diet on Alzheimer's Disease

NCT02984540
View directory record Official record
Conditions
Mild Cognitive Impairment, Insulin Resistance
Interventions
Low-Carbohydrate Diet, Low-Fat Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 21, 2026, 4:09 AM 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 13, 2023 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Chitin-Glucan on Oxidized Low-Density Lipoprotein (LDL)

NCT01232309
View directory record Official record
Conditions
Cardiovascular
Interventions
Chitin-Glucan, Low Dose Chitin-Glucan, Low Dose Chitin-Glucan + Olive Extract, Placebo
Dietary Supplement
Lead sponsor
Stratum Nutrition
Industry
Eligibility
21 Years to 70 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Addison, Illinois • Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 23, 2012 · Synced Oct 21, 2026, 4:09 AM EDT
Recruiting Not applicable Interventional

Effects of Ketosis on Brain Function in Patients With T1DM

NCT04219709
View directory record Official record
Conditions
Type1diabetes
Interventions
Very low carbohydrate diet, Standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 21, 2026, 4:09 AM EDT
Terminated Not applicable Interventional

Examining the Effects of Diet on Health in Prediabetes With an Online Program

NCT02188823
View directory record Official record
Conditions
Prediabetes
Interventions
Low carbohydrate diet
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 16, 2017 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Metabolic Effects of Different Weight Loss Diets

NCT00422630
View directory record Official record
Conditions
Metabolic Syndrome X, Obesity, Insulin Resistance, Hypertension, Diabetes
Interventions
The DASH diet, The low glycemic Index Diet, Reduced calorie American Diet
Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2011 · Synced Oct 21, 2026, 4:09 AM EDT
Completed Not applicable Interventional

Effect of Exercise and Diet on Inflammation in Hypertensive Individuals

NCT00338572
View directory record Official record
Conditions
Hypertension
Interventions
Exercise Program, Combined Exercise and Diet Program
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
25 Years to 60 Years
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2012 · Synced Oct 21, 2026, 4:09 AM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes Management Using a Very Low Carbohydrate Versus Standard Diet

NCT03710928
View directory record Official record
Conditions
Type1diabetes
Interventions
very low carbohydrate diet, standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 21, 2026, 4:09 AM EDT