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Showing 1–24 of 344 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: high protein diet Clear all
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 6, 2025 · Synced Sep 11, 2026, 2:33 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effect of Incorporating Lean Beef Into a Protein-rich Diet During Resistance Training on Muscle and Tendon Strength in Older Women

NCT04347447
View directory record Official record
Conditions
Sarcopenia, Aging
Interventions
Exercise training
Other
Lead sponsor
Purdue University
Other
Eligibility
60 Years to 80 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 28, 2023 · Synced Sep 11, 2026, 2:33 PM EDT
Recruiting Not applicable Interventional

Living Well With Lymphoma

NCT06047626
View directory record Official record
Conditions
Lymphoma
Interventions
Fatigue Reduction Diet, General Health Curriculum
Other
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Phase 4 Interventional Results available

Novel Combination Therapy for Osteoporosis in Men

NCT03994172
View directory record Official record
Conditions
Male Osteoporosis
Interventions
Teriparatide or human parathyroid hormone (PTH) 1-34, Cinacalcet, placebo tablet, Calcium citrate tablet, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years to 85 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 11, 2026, 2:33 PM EDT
Terminated Not applicable Interventional

Exercise Intervention Prior to CRS-HIPEC: Feasibility & Impact

NCT04731441
View directory record Official record
Conditions
Colon Cancer, Ovarian Cancer, GI Cancer, Gynecologic Cancer
Interventions
Home-based Exercise Program Prior to CRS-HIPEC, Exercise Education
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 11, 2026, 2:33 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 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Dietary Fat When Eaten With Fructose Versus Glucose

NCT01061346
View directory record Official record
Conditions
Body Weight Changes
Interventions
40% Fat Diet, 20% Fructose Beverage, 20% Glucose Beverage
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
28 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 24, 2016 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increased Dietary Protein and Meal Frequency Reduces Total and Abdominal Body Fat During Weight Maintenance and Weight Loss

NCT01749449
View directory record Official record
Conditions
Obesity
Interventions
protein and meal frequency
Other
Lead sponsor
Skidmore College
Other
Eligibility
30 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Saratoga Springs, New York
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Sep 11, 2026, 2:33 PM 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 6, 2016 · Synced Sep 11, 2026, 2:33 PM 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 7, 2023 · Synced Sep 11, 2026, 2:33 PM EDT
Withdrawn Not applicable Interventional

Effect of a Plant Rich Diet on in People With Type 2 Diabetes and Obesity

NCT02977039
View directory record Official record
Conditions
Type 2 Diabetes Mellitus in Obese
Interventions
NDPR diet, USDA healthy eating diet
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Benefits of a Higher Protein, 'Egg-cellent' Breakfast in the Classroom

NCT03536676
View directory record Official record
Conditions
Breakfast, Obesity, Mood, Eating Behavior
Interventions
'Egg-cellent' Breakfast in the Classroom, Breakfast in the Classroom
Other
Lead sponsor
Purdue University
Other
Eligibility
10 Years to 16 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 9, 2022 · Synced Sep 11, 2026, 2:33 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

GLP-1 Receptor Agonists Post-Bariatric Surgery (GRABS) Pilot Trial

NCT06162715
View directory record Official record
Conditions
Severe Obesity, Obesity, BMI Greater Than 30
Interventions
Tirzepatide, Standard of Care post-gastric bypass
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
25 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lean Body Mass Response to Higher-protein Diets During Winter Military Training

NCT02327208
View directory record Official record
Conditions
Body Weight
Interventions
Control, Protein, Carbohydrate
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparing the Effect of Whey and Soy Protein on the Absorption of Pomegranate Polyphenols in the Human Body

NCT02233478
View directory record Official record
Conditions
Healthy
Interventions
Pomegranate Juice, Soybean Flour Protein, Soy Isolate Protein
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Sep 11, 2026, 2:33 PM EDT
Recruiting Phase 1 Interventional

Ketogenic Diet for Prevention of Epileptic Spasms in Infantile Onset Genetic Epilepsies

NCT06700811
View directory record Official record
Conditions
Developmental and Epileptic Encephalopathies, Epileptic Spasms, Genetic Epilepsy, Neonatal and Infant Epilepsy
Interventions
Ketogenic diet
Drug
Lead sponsor
Heather Olson
Other
Eligibility
0 Days to 9 Months
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 11, 2026, 2:33 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Reprometabolic Syndrome Mediates Subfertility in Obesity

NCT02653092
View directory record Official record
Conditions
Obesity, Infertility, Hypogonadotropic Hypogonadotropism, Hyperinsulinemia
Interventions
Insulin, Intralipid, Dextrose, Heparin, GnRH, Hyperinsulinemic Euglycemic Clamp
Drug · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 11, 2026, 2:33 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Food and Circadian Timing

NCT04743271
View directory record Official record
Conditions
Diet, High-Fat, Circadian Rhythm
Interventions
High-Fat Diet, Low-Fat Diet
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Assessment of Mechanisms of Improved Wound Healing

NCT00673309
View directory record Official record
Conditions
Burns
Interventions
Stable Isotope Infusion study, Insulin High Dose, oxandrolone, Propranolol, Growth Hormone, Insulin Low Dose, IGF-1/IGFBP-3, Itraconazole, Growth Hormone and Propranolol, Oxandrolone and Propranolol, Placebo or Control
Procedure · Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
Up to 90 Years
Enrollment
644 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2013
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Sep 11, 2026, 2:33 PM EDT
Withdrawn Phase 2 Interventional

Immunonutrition to Reduce Toxicities in Non-Small Cell Lung Cancer

NCT03628144
View directory record Official record
Conditions
Non Small Cell Lung Cancer, NSCLC, Non-small Cell Lung Cancer, Non-small Cell Lung Cancer Stage IIIB, Non-small Cell Lung Cancer Stage ⅢA, NSCLC Stage IIIB, NSCLC, Stage IIIA
Interventions
Impact® Advanced Recovery, Boost® High Protein, Radiation Therapy, Chemotherapy, Quality of life (EORTC-QLQ-30), Evaluation of Cognitive Function (FACT-Cog, v. 3.0), Mindfulness Questionnaire (FFMQ)
Dietary Supplement · Radiation · Drug + 1 more
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 9, 2020 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Metabolic Effects of Consuming Sugar-Sweetened Beverages for Two Weeks

NCT01103921
View directory record Official record
Conditions
Metabolic Syndrome, Insulin Resistance, Dyslipidemia
Interventions
Glucose, Fructose, High-Fructose Corn Syrup, No sugar (Aspartame)
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 40 Years
Enrollment
214 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Calcium Retention as Influenced by Dietary Components That Induce an Acid Load

NCT00620763
View directory record Official record
Conditions
Healthy
Interventions
High Meat - High Potential Renal Acid Load (PRAL) diet, Low Protein - Low Potential Renal Acid Load (PRAL) diet
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
40 Years to 75 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Jul 1, 2018 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Results available

Optimizing Protein Patterns for Skeletal Muscle Preservation and Sleep in the Medical Management of Parkinson Disease

NCT05437640
View directory record Official record
Conditions
Parkinson Disease
Interventions
Protein Redistribution Diet, Protein Consistent Diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
45 Years to 99 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Sep 11, 2026, 2:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nighttime Macronutrient Choice and Combined Resistance and High-intensity Interval Training

NCT01830946
View directory record Official record
Conditions
Obesity
Interventions
Whey Protein, Combined Resistance and High-Intensity Interval training, Casein Protein
Other
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 45 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 14, 2013 · Synced Sep 11, 2026, 2:33 PM EDT