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ClinicalTrials.gov public records Last synced Oct 7, 2026, 4:40 AM EDT

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Showing 73–96 of 348 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Diet - higher protein Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Dietary Restriction of Animal Protein and Fat on Osteoarthritis

NCT01939262
View directory record Official record
Conditions
Osteoarthritis
Interventions
Limitation of Animal Fat and Protein in the Diet, Control
Other
Lead sponsor
Essentia Health
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Traverse City, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 20, 2013 · Synced Oct 7, 2026, 4:40 AM EDT
Not yet recruiting Not applicable Interventional

Ketogenic Diet to Reduce Osteoarthritis Pain in MCI

NCT07417891
View directory record Official record
Conditions
Osteoarthritis (OA) of the Hip, Osteoarthritis (OA) of the Knee, Osteoarthritis (OA) of the Shoulder, Osteoarthritis, Mild Cognitive Impairment, MCI, Mild Cognitive Impairment (MCI), Dementia
Interventions
Well-formulated ketogenic diet
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
55 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Fairway, Kansas
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Effects of Diet Interventions on Monocytes in Metabolic Syndrome

NCT03591588
View directory record Official record
Conditions
Metabolic Syndrome, Hypertriglyceridemia
Interventions
diet
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
21 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 8, 2020 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Whipple Protein Study

NCT04306874
View directory record Official record
Conditions
Pancreatic Cancer, Malnutrition
Interventions
Ensure Max Protein
Dietary Supplement
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Noninvasive Markers of Gluten Ingestion in Celiac Disease Patients

NCT02389062
View directory record Official record
Conditions
Adult Form of Celiac Disease
Interventions
Administration of gluten( food /wheat protein) capsules or placebo(cornstarch) capsules and tests for novel markers will be done at intervals.
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 19, 2019 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Intake and Circulating Levels of Branched Chain Amino Acids

NCT02110602
View directory record Official record
Conditions
Dietary Intake of Branched Chain Amino Acids
Interventions
Diet high in amino acid levels, Diet low in amino acid levels
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
20 Years to 40 Years · Male only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 7, 2026, 4:40 AM EDT
Terminated Phase 4 Interventional Results available

Evaluate the Efficacy and Safety Growth Hormone, Glutamine and Diet in Patients With Short Bowel Syndrome (SBS)

NCT00742157
View directory record Official record
Conditions
Short Bowel Syndrome
Interventions
Growth Hormone
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 78 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 8, 2023 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Colorectal Inflammatory Response to a Western-Style Diet

NCT00932308
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Western-style diet (WD), Prudent Diet (PD)
Dietary Supplement
Lead sponsor
Rockefeller University
Other
Eligibility
50 Years to 72 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 17, 2012 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean-like Unprocessed (CLEAN-MED) Diet Intervention Study of the Gut Microbiome of Healthy Adults

NCT05411120
View directory record Official record
Conditions
Diet Therapy
Interventions
Western Diet, CLEAN-MED
Other
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Feasibility Study of N-acetylcysteine for Self-injurious Behavior in Children With Autism Spectrum Disorder

NCT03008889
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
5 Years to 12 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Phase 2 Interventional Results available

Study of Milk Allergy and Tolerance in Children

NCT00778258
View directory record Official record
Conditions
Food Hypersensitivity, Milk Hypersensitivity
Interventions
Baked Milk, Non-baked Milk
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Years to 10 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2016 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Impact of Weight Loss on Physical Function

NCT02079051
View directory record Official record
Conditions
Obesity
Interventions
Moderate intensity weight loss, High intensity medical weight loss
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 9, 2018 · Synced Oct 7, 2026, 4:40 AM EDT
Recruiting Not applicable Interventional

Metabolic Impact and Compliance of Controlled, Varying, Mediterranean Diets in Pre-Surgical Prostate Cancer Populations (PROVISIONS)

NCT06487507
View directory record Official record
Conditions
Prostate Cancer
Interventions
Low fat diet, Lower carbohydrate diet
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 80 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Metabolomics for Identifying Biomarkers of Dietary Intake and Kidney Disease Progression

NCT03202914
View directory record Official record
Conditions
Dietary Modification, Kidney Diseases, Chronic
Interventions
Usual protein and phosphorus diet, Low protein and phosphorus diet, Very low protein and phosphorus
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 70 Years
Enrollment
840 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1988 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 29, 2017 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Modulation of the Intestinal Microbiome by a High Protein Diet

NCT04812964
View directory record Official record
Conditions
Obesity
Interventions
Protein powder supplement, standard dosage based on 0.5 gram protein per pound of subject's lean body mass, Protein powder supplement, High Level Protein, based on 1 gram of protein per pound of lean body mass: 25% protein and 45% carbohydrate
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
20 Years to 60 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2024 · Synced Oct 7, 2026, 4:40 AM EDT
Terminated Not applicable Interventional

Soy Modulation of Immune Activation, LDL- Levels, and Lowering Inflammation by Pretzel Isoflavone Dietary Intervention

NCT02818283
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV) Infection, Hypercholesterolemia
Interventions
Soy Pretzel, Wheat Pretzel
Dietary Supplement · Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

UC Cohort - The Influence of Diet on Gut Microbiotas

NCT04933162
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
High Protein and Low Fiber Diet, Low Protein and High Fiber Diet
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 25, 2023 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

The Effects of Nutrition Supplementation and Education on the Healing of Diabetic Foot Ulcer (DFU)

NCT04055064
View directory record Official record
Conditions
Diabetic Foot Ulcer
Interventions
glucose control nutritional shake, nutrition education
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
30 Years to 70 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Eggs on Postprandial Metabolism

NCT01351207
View directory record Official record
Conditions
Healthy
Interventions
Eggs
Other
Lead sponsor
Tufts University
Other
Eligibility
50 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 19, 2014 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Diet Composition on Performance, Expenditure, Blood Lipids, and Appetite Hormones in Highly Trained Cyclists

NCT04097171
View directory record Official record
Conditions
Endurance Cycling Performance
Interventions
Diet
Other
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional

Balanced (Egg) Protein During Obesity Reduction: Differential Responses of Insulin Resistance by Race

NCT03771261
View directory record Official record
Conditions
Pre Diabetes, Obesity
Interventions
Weight Loss, Egg Protein
Behavioral · Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
60 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 11, 2023 · Synced Oct 7, 2026, 4:40 AM 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 6, 2026 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a High-Protein Diet and/or High-Intensity Training on Metabolic Syndrome

NCT01622634
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Sprint Interval Exercise, Higher PRO Diet, Higher CARB Diet
Behavioral · Other
Lead sponsor
University of Georgia
Other
Eligibility
30 Years to 65 Years · Female only
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 25, 2015 · Synced Oct 7, 2026, 4:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of High Fruit, Vegetable, and Dairy Intake on Plasma Lipids and Blood Pressure in Healthy Individuals

NCT01404897
View directory record Official record
Conditions
Cardiovascular Disease, Dyslipidemia, Blood Pressure
Interventions
Dietary Intervention
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
22 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2015 · Synced Oct 7, 2026, 4:40 AM EDT