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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: high-fiber/low fat Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Diet Intervention for Crohn's Disease Patient

NCT04213729
View directory record Official record
Conditions
Crohn Disease
Interventions
Diet Counseling, CD LFD, Dyadic Psychological Support (DPS)
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 28, 2026, 6:11 PM 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 28, 2026, 6:11 PM 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 12, 2011 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional

Dietary Interventions in Prediabetes

NCT01729078
View directory record Official record
Conditions
Impaired Fasting Glucose, Pre Diabetes, Liver Fat
Interventions
Dietary intervention
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
30 Years to 80 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 28, 2015 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional

Facts-Up-Front Versus Traffic-Light Food Labels

NCT01626729
View directory record Official record
Conditions
Food Labeling
Interventions
Traffic Light+, Facts Up Front+, No label control group
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
703 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 24, 2012 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a High Protein, High Fiber Dietary Supplement on Weight and Fat Loss

NCT03057873
View directory record Official record
Conditions
Overweight
Interventions
High protein, high fiber dietary supplement, Placebo
Dietary Supplement
Lead sponsor
Beachbody
Industry
Eligibility
25 Years to 50 Years
Enrollment
206 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced Sep 28, 2026, 6:11 PM 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 1, 2011 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Small Bowel Microbiota Characterization in Healthy Individuals Before and After Consumption of a Western Diet

NCT03266536
View directory record Official record
Conditions
Small Intestine Bacteria
Interventions
Western diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 3, 2022 · Synced Sep 28, 2026, 6:11 PM EDT
Terminated Phase 2 Interventional Results available

Bevacizumab, Metronomic Chemotherapy (CM), Diet and Exercise After Preoperative Chemotherapy for Breast Cancer

NCT00925652
View directory record Official record
Conditions
Breast Cancer
Interventions
Bevacizumab, Cyclophosphamide, Methotrexate, Lifestyle: Diet, Lifestyle: Diet+Exercise
Drug · Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
9
States / cities
Birmingham, Alabama • Indianapolis, Indiana • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2022 · Synced Sep 28, 2026, 6:11 PM 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 29, 2013 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Controlled Feeding Experiment

NCT00951756
View directory record Official record
Conditions
Effect of Diet on Microbiome Composition
Interventions
High fat diet
Other
Lead sponsor
James Lewis
Other
Eligibility
18 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 24, 2013 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional

Ketogenic Diet to Improve Neuro-recovery

NCT03509571
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Ketogenic Diet, Standard Diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
19 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Obesity, Iron Regulation and Colorectal Cancer Risk

NCT03548948
View directory record Official record
Conditions
Colon Inflammation, Iron Malabsorption, Obesity, Diet Modification
Interventions
High heme iron diet, Low iron diet, Plant-based high non-heme iron diet
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
55 Years to 70 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 26, 2019 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Impact on Intestinal Sulfate Metabolism

NCT05333900
View directory record Official record
Conditions
Healthy Nutrition
Interventions
Plant-Based Diet then animal-based diet, Animal-based diet then plant-based diet
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 4, 2023 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Modulation of Bacterial Sulfur and Bile Acid Metabolism and Colon Cancer Risk

NCT03550885
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High taurine and saturated fat diet, Low in taurine and saturated fat diet
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
45 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Fiber on Appetite and Digestion Hormones

NCT01050101
View directory record Official record
Conditions
Psychological Phenomena and Processes, Nutrition Physiological Phenomena
Interventions
No fiber, Low GI high fiber viscous meal, Low GI high fiber non-viscous
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional

Prebiotic Fiber to Prevent Pathogen Colonization in the ICU

NCT03509753
View directory record Official record
Conditions
Sepsis
Interventions
High Fiber, Low Fiber
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Sep 28, 2026, 6:11 PM 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 18, 2026 · Synced Sep 28, 2026, 6:11 PM EDT
Recruiting Phase 1Phase 2 Interventional

Manipulation of the Gut Microbiome by a Standardized Preoperative Diet to Prevent Colorectal Cancer Recurrence and Metastasis Following Surgery

NCT06349590
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High-fiber/low-fat meals
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 20, 2026 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Phase 1 Interventional

Safety and Feasibility Study of Methylene Blue Photodynamic Therapy to Sterilize Deep Tissue Abscess Cavities

NCT02240498
View directory record Official record
Conditions
Abscess
Interventions
Methylene Blue, 20% I.V. Fat Emulsion, Insertion of optical fiber, Laser illumination, 5 minutes, Laser illumination, 10 minutes, Laser illumination, 15 minutes, Laser illumination, 20 minutes, Laser illumination, 25 minutes, Laser illumination, 30 minutes, Optical spectroscopy measurement
Drug · Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Replacing Refined Carbohydrates With Healthy Fats on Cardio-metabolic Markers

NCT02695433
View directory record Official record
Conditions
Pre-diabetes, Metabolic Syndrome
Interventions
Active, Control
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
25 Years to 60 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Sep 28, 2026, 6:11 PM EDT
Completed Phase 2 Interventional

The Healthy Life Choices Project in HIV-Positive Patients

NCT00017810
View directory record Official record
Conditions
Diarrhea, HIV Infections
Interventions
Dietary intervention, HIV Self-Care
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2003
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Sep 28, 2026, 6:11 PM EDT
Recruiting Not applicable Interventional

Study of Nutrition and Exercise in Adults Hospitalized for Treatment of Acute Lymphoblastic Leukemia (ALL)

NCT06785324
View directory record Official record
Conditions
Philadelphia Chromosome Negative, B Cell Acute Lymphoblastic Leukemia (B-ALL), B-ALL
Interventions
Nutrition Intervention, Exercise intervention
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 28, 2026, 6:11 PM EDT
Not yet recruiting Not applicable Interventional

Reset: Enhancing Weight Loss in a Digital Intervention

NCT07032571
View directory record Official record
Conditions
Obesity, Overweight, Weight Loss, Health Behavior, Lifestyle Intervention
Interventions
Core Behavioral Weight Loss Intervention, Limit Red Zone Foods, Limit Eating Window, Increase Protein, Increase Fiber Intake
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 28, 2026, 6:11 PM EDT