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Showing 1–24 of 272 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Protein supplements Clear all
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 5, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

BCAA Supplementation for Concussion

NCT01860404
View directory record Official record
Conditions
Brain Concussion
Interventions
Branched Chain Amino Acids, Placebo solution
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
11 Years to 34 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 13, 2024 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Natural Protein vs. Protein Supplements on Peritoneal Dialysis Patients

NCT03569410
View directory record Official record
Conditions
Peritoneal Dialysis Complication, Hypoalbuminemia, Malnutrition
Interventions
increased protein intake via natural foods, increase protein intake via protein supplements
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Athlete Whey Protein Sensitivity: Prevalence and Performance

NCT05482997
View directory record Official record
Conditions
Food Intolerance
Interventions
Whey Protein Concentrate, Pea Protein Isolate, Rice Protein Concentrate, Hemp Protein
Dietary Supplement
Lead sponsor
University of the Incarnate Word
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Sep 5, 2026, 8:23 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Nutritional Preconditioning on the Patient's Outcomes After Surgery

NCT03692507
View directory record Official record
Conditions
Major Abdominal/GI Surgery
Interventions
HMB, Protein and HMB, ERAS
Dietary Supplement
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2021 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Targeted Nutrition for Moderate to Late Preterm Infants

NCT05515614
View directory record Official record
Conditions
Premature Birth, Breastmilk Collection, Postnatal Growth Restriction
Interventions
Targeted Fortification, Enfamil Liquid Human Milk Fortifier
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
Not listed
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2025 · Synced Sep 5, 2026, 8:23 PM EDT
Not yet recruiting Not applicable Interventional

Ketogenic Approach to Restore Muscle in Older Patients With Community-Acquired Pneumonia - KARMA-P Trial

NCT07308483
View directory record Official record
Conditions
Pneumonia
Interventions
Ketogenic feeding, Standard feeding
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
55 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 5, 2026, 8:23 PM EDT
Recruiting Not applicable Interventional

Effect of Nicotinamide Riboside on Ketosis, Fat Oxidation & Metabolic Rate

NCT06044935
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Standard Diet, Ketogenic Diet, Placebo, Nicotinamide Riboside
Other · Dietary Supplement
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 5, 2026, 8:23 PM EDT
Withdrawn Not applicable Interventional

Improving Muscle Function in Nutritionally at Risk, Elderly Patients

NCT03071354
View directory record Official record
Conditions
Muscle Weakness, ICU-acquired Weakness
Interventions
HMB protein supplement (3g), Nutritional Supplement
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 4, 2018 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional

Effects of Soy Based Dietary Supplements on Cardiometabolic Risk Factors.

NCT02490683
View directory record Official record
Conditions
Obesity, Cardiovascular Risk Factors
Interventions
Luna Rich X, Placebo, Reliv Now
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
35 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated May 11, 2016 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Whey Protein Supplementation in High School Athletes

NCT05589129
View directory record Official record
Conditions
Body Weight Changes, Athletic Performance, Recovery, Sleep
Interventions
Whey Protein Supplement, Carbohydrate Placebo Control
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
13 Years to 18 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Women's Isoflavone Soy Health (WISH) Trial

NCT00118846
View directory record Official record
Conditions
Atherosclerosis
Interventions
25 gm soy protein supplement, Placebo
Dietary Supplement · Other
Lead sponsor
University of Southern California
Other
Eligibility
30 Years and older · Female only
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 5, 2026, 8:23 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Cyclic Versus Daily Teriparatide on Bone Mass

NCT00668941
View directory record Official record
Conditions
Osteoporosis
Interventions
Teriparatide, Alendronate, Calcium, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
Helen Hayes Hospital
Other
Eligibility
45 Years to 85 Years · Female only
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2017
U.S. locations
1
States / cities
West Haverstraw, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study to Evaluate the Effect of Botanical Dietary Supplements on Inflammation in Healthy People

NCT00303238
View directory record Official record
Conditions
Healthy
Interventions
Rose hips extract + blueberry/blackberry extract + resveravine, Rose hips extract + blueberry/blackberry extract + Aframomum melegueta extract, Rose hips extract + resveravine + Aframomum melegueta extract
Drug
Lead sponsor
Access Business Group
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
8
States / cities
Artesia, California • Buena Park, California • Burbank, California + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2006 · Synced Sep 5, 2026, 8:23 PM EDT
Withdrawn Early Phase 1 Interventional

The Role of Glutathione Deficiency and MSIDS Variables in Long COVID-19

NCT05371288
View directory record Official record
Conditions
COVID-19
Interventions
NAC (N-acetyl cysteine), Alpha lipoic acid (ALA), liposomal glutathione (GSH)
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Nov 4, 2024 · Synced Sep 5, 2026, 8:23 PM EDT
Not yet recruiting Not applicable Interventional

High-protein plUs reSistance Training in gLucagon-like pEptide 1 Receptor Agonist Users (HUSTLE)

NCT07700030
View directory record Official record
Conditions
Weight Loss
Interventions
High protein diet, Resistance Training (RT) Programs
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
30 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 5, 2026, 8:23 PM EDT
Not yet recruiting Not applicable Interventional

EXERT-BC Protein: Protein Supplementation to Improve Body Composition After Treatment for Breast Cancer

NCT07704476
View directory record Official record
Conditions
Cancer, Breast Cancer
Interventions
Whey protein (60 grams), No protein
Dietary Supplement · Other
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dileucine and Resistance Training Adaptations

NCT06121869
View directory record Official record
Conditions
Hypertrophy, Strength Training Adaptations, Weight-Bearing Strengthening Program
Interventions
Placebo, Leucine, Dileucine
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 39 Years · Male only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional

Supplemental Egg Protein Intervention in Older Adults

NCT03530774
View directory record Official record
Conditions
Sarcopenia, Aging
Interventions
powdered egg white protein supplement, maltodextrin supplement
Dietary Supplement
Lead sponsor
The University of Texas at San Antonio
Other
Eligibility
60 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional

Treatment of Type 2 Diabetes With Immunonutrients

NCT02462863
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Arginine and fish oil
Dietary Supplement
Lead sponsor
The Christ Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 30, 2020 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protein Supplementation Post Bariatric Surgery

NCT02951663
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Protein
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Whey Protein Supplements on Markers of Exercise-induced Muscle Damage in Resistance-trained Individuals

NCT05100459
View directory record Official record
Conditions
Muscle Damage, Muscle Soreness
Interventions
Pasture-raised whey protein, Conventional whey protein, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Sep 5, 2026, 8:23 PM EDT
Completed Phase 3 Interventional

Anit-Inflammatory and Anti-Oxidative Nutrition in Dialysis Patients

NCT00561093
View directory record Official record
Conditions
Hypoalbuminemia, Protein-energy Malnutrition, Inflammation, Oxidative Stress, Chronic Kidney Disease (CKD) Hemodialysis
Interventions
pentoxiphylline, Nepro, anti-inflammatory module (similar to Oxepa), Placebo pill imitating pentoxiphylline, Placebo to imitate Nepro, Placebo to imitate anti-inflammatory module (similar to Oxepa)
Drug · Dietary Supplement
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Irvine, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated May 20, 2015 · Synced Sep 5, 2026, 8:23 PM EDT
Recruiting Not applicable Interventional

A SkeleTal Muscle Recovery Intervention With Dietary Protein in Heart Failure

NCT05627440
View directory record Official record
Conditions
Heart Failure, Muscle Atrophy
Interventions
Ensure Max Protein, Ensure Original
Dietary Supplement
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Sep 5, 2026, 8:23 PM EDT