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ClinicalTrials.gov public records Last synced Oct 21, 2026, 12:41 PM EDT

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Showing 481–504 of 1,844 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Supplementation Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic on Psychological and Cognitive Effects

NCT03080818
View directory record Official record
Conditions
Aging
Interventions
Probiotic - Lactobacillus Rhamnosus GG, Placebo
Dietary Supplement · Other
Lead sponsor
Kent State University
Other
Eligibility
55 Years to 75 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Kent, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Oct 21, 2026, 12:41 PM EDT
Recruiting Not applicable Interventional

Prospective Study to Evaluate High Flow Nasal Cannula With Monitored Anesthesia Care During EBUS Bronchoscopy

NCT05203328
View directory record Official record
Conditions
Lung Cancer
Interventions
Vapotherm, Regular nasal canula
Device
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Camden, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Oct 21, 2026, 12:41 PM EDT
Recruiting Not applicable Interventional

A Randomized, Triple-blind, Placebo-controlled Study to Evaluate the Effects of a Supplement on Nutrient Gaps and Gut Health Among Individuals Utilizing GLP-1 RAs

NCT07437911
View directory record Official record
Conditions
Nutrition Intake, Nutrition Status, Gastrointestinal Microbiome, GLP-1
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 59 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Phase 1 Interventional Results available

Enteral L Citrulline Supplementation in Preterm Infants - Safety, Efficacy and Dosing

NCT03649932
View directory record Official record
Conditions
Bronchopulmonary Dysplasia, Bronchopulmonary Dysplasia Associated Pulmonary Hypertension, Pulmonary Hypertension, Premature Birth, Chronic Lung Disease of Prematurity
Interventions
Enteral L-citrulline
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
Up to 30 Weeks
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2021 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Effects of Electrical Stimulation and Vitamin D Supplementation on Bone Health Following Spinal Cord Injury.

NCT05008484
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
NMES, Vitamin D, Passive movement
Device · Drug · Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Phase 2 Interventional Results available

Early Supplementation of Enteral Microlipid With and Without Fish Oil in Premature Infants With Enterostomies

NCT01674478
View directory record Official record
Conditions
Prematurity, Intestine Perforation, Necrotizing Enterocolitis (NEC), Short Bowel Syndrome (SBS)
Interventions
Microlipid with fish oil, Microlipid
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
1 Day to 2 Months
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Results available

Oral Zinc for the Treatment of Acute Diarrhea in US Children

NCT01198587
View directory record Official record
Conditions
Diarrhea, Gastroenteritis
Interventions
Zinc Sulfate, Placebo oral capsule
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Months to 6 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional

Efficacy and Safety Study of Nutritional Supplements for Treatments of Dry Eye

NCT00883649
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Hydroeye, Inactive Capsule
Dietary Supplement · Other
Lead sponsor
Virginia Eye Consultants
Other
Eligibility
40 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
2
States / cities
Houston, Texas • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 20, 2012 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional

Efficacy of Pea Hull Fiber in Chronic Disease

NCT03354364
View directory record Official record
Conditions
Kidney Disease, Chronic
Interventions
Pea hull fiber, Control
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Blueberry on Cognition and Mobility in Older Adults

NCT01888848
View directory record Official record
Conditions
Aging, Age-Related Memory Disorders
Interventions
Freeze-dried Blueberry, Blueberry Placebo
Dietary Supplement
Lead sponsor
USDA Human Nutrition Research Center on Aging
Federal
Eligibility
60 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Phase 2 Interventional

Effects of Cinnamon Supplementation on Glucose Metabolism in Patients With Pre-diabetes

NCT03219411
View directory record Official record
Conditions
Dysglycemia, Obesity
Interventions
Cinnamon, placebo
Dietary Supplement · Other
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
20 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Oct 21, 2026, 12:41 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 24, 2025 · Synced Oct 21, 2026, 12:41 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin D and Omega-3 Adiposity Trial (VITAL Adiposity)

NCT01785004
View directory record Official record
Conditions
Adiposity
Interventions
Vitamin D3 (cholecalciferol), 2000 IU per day, omega-3 fatty acids (fish oil)
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Oct 21, 2026, 12:41 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effects of a Nitrate Supplementation on Erectile Function

NCT06213077
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Nitric Oxide, Tadalafil, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
RHA Investments Ltd
Industry
Eligibility
40 Years to 65 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 19, 2024 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Combined Exercise, Heat, and Quercetin Supplementation on Whole Body Stress Response

NCT01168739
View directory record Official record
Conditions
Heat Acclimation and Thermotolerance
Interventions
Quercetin, Placebo
Dietary Supplement
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years to 39 Years · Male only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Feasibility Study of Integrating Maternal Nutrition Interventions Into Antenatal Care Services in Ethiopia

NCT04125368
View directory record Official record
Conditions
Maternal Dietary Diversity, Iron-Folic Acid Supplementation, Early Initiation of Breastfeeding
Interventions
Health Facility Interventions, Community Interventions, Health System Interventions
Behavioral
Lead sponsor
International Food Policy Research Institute
Other
Eligibility
15 Years to 49 Years · Female only
Enrollment
4,256 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Change in Omega 3 Index in Healthy Adults With OmeGo or a Standard Omega-3 Oil Supplement

NCT06802068
View directory record Official record
Conditions
Supplementation in Healthy Adults to Assess Impact on Omega 3 Index and Cardiometabolic Health
Interventions
whole salmon oil, Cod liver oil
Dietary Supplement
Lead sponsor
Hofseth Biocare ASA
Industry
Eligibility
40 Years to 80 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Menlo Park, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 21, 2026, 12:41 PM EDT
Terminated Not applicable Interventional Results available

Feasibility Study of Omega-3 Fatty Acids in Dialysis Patients

NCT01002118
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Omega-3 Acid Ethyl Esters, Placebo
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Results available

Pilot Testing a Home-Based Rehabilitation Intervention Designed to Improve Outcomes of Frail Veterans Following Cardiothoracic Surgery

NCT03299101
View directory record Official record
Conditions
Coronary Artery Bypass Graft, Non-cardiac Thoracic Surgery, Frailty
Interventions
Prehabilitation
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 13, 2021 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes

NCT01633177
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Vitamin D3, Omega-3 fatty acid (fish oil), Vitamin D3 placebo, Fish oil placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
22,220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 21, 2026, 12:41 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Dehydroepiandrosterone (DHEA) Treatment and Premature Ovarian Failure (POF)

NCT00948857
View directory record Official record
Conditions
Premature Ovarian Failure
Interventions
Dehydroepiandrosterone, Placebo
Dietary Supplement
Lead sponsor
David H. Barad
Other
Eligibility
21 Years to 39 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2012 · Synced Oct 21, 2026, 12:41 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 21, 2026, 12:41 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin D3 Supplementation for Vitamin D Deficiency in Rotator Cuff Repair Surgery

NCT05009498
View directory record Official record
Conditions
Vitamin D Deficiency, Rotator Cuff Tears
Interventions
Vitamin D3 supplementation, Placebo
Dietary Supplement · Other
Lead sponsor
Community Memorial Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Aug 17, 2021 · Synced Oct 21, 2026, 12:41 PM EDT
Completed Not applicable Interventional Results available

Utilizing Protein During Weight Loss to Impact Physical Function and Bone

NCT03819478
View directory record Official record
Conditions
Obesity, Weight Loss, Diet Modification, Aging, Weight Change, Body, Dietary Habits, Osteopenia, Osteoporosis, Bone Loss, Fractures, Bone
Interventions
Weight loss intervention months 0-6, Exercise intervention months 0-6, NutraBio™ CarboMax Supplement, 6-month NutraBio™ 100% Whey Protein Isolate Supplement, 18-month NutraBio™ 100% Whey Protein Isolate Supplement
Behavioral · Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years to 85 Years
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 19, 2024 · Synced Oct 21, 2026, 12:41 PM EDT