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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Nutritional Supplement Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

ACEs, SIRT1, and Premature Vascular Aging in Humans

NCT07073352
View directory record Official record
Conditions
Adverse Childhood Experiences, Endothelial Dysfunction
Interventions
Nicotinamide Riboside, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 30 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Iowa City, Iowa • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Evaluation of Zinc Status Biomarkers

NCT02861352
View directory record Official record
Conditions
Inflammation, Oxidative Stress
Interventions
Diet zinc
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Fish Oil Supplementation on the Brain Health of Collegiate Football Athletes

NCT04796207
View directory record Official record
Conditions
Traumatic Brain Injury (TBI), Chronic Traumatic Encephalopathy (CTE)
Interventions
Fish Oil (DPA+EPA 2:1 ratio) Capsules, High Oleic Safflower Oil Capsules
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Results available

The Effects of an Antioxidant Formulation on Ocular Blood Flow

NCT01930487
View directory record Official record
Conditions
Primary Open Angle Glaucoma
Interventions
dietary supplement with antioxidants, Placebo
Dietary Supplement
Lead sponsor
ScienceBased Health
Industry
Eligibility
30 Years to 70 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 4, 2016 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional

Changing Health Through Food Support for Diabetes

NCT04959487
View directory record Official record
Conditions
Type 2 Diabetes, Food Insecurity
Interventions
Food support, Nutritional Counseling and education
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
281 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Results available

Group Learning Achieves Decreased Incidents of Lower Urinary Symptoms

NCT02001714
View directory record Official record
Conditions
Urinary Incontinence, Stress, Urinary Incontinence, Urge
Interventions
Group Behavioral Treatment
Behavioral
Lead sponsor
Ananias Diokno
Other
Eligibility
55 Years and older · Female only
Enrollment
463 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
4
States / cities
Birmingham, Alabama • Ann Arbor, Michigan • Royal Oak, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2017 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional

The Effect of Dietary Nitrates on Physical Performance and Vascular Function in Chronic Kidney Disease

NCT04103736
View directory record Official record
Conditions
Kidney Disease, Chronic, Endothelial Dysfunction
Interventions
Beet It Sport Shot, Nitrate-depleted placebo
Dietary Supplement
Lead sponsor
University of Delaware
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Sep 17, 2026, 7:40 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Pilot Study:Role of Dietary Fiber in PCOS Anovulation

NCT00703092
View directory record Official record
Conditions
PCOS
Interventions
Fiber-Stat
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 8, 2017 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D3 Supplementation Pilot Study

NCT01546103
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Cholecalciferol
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
12 Years to 17 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 22, 2013 · Synced Sep 17, 2026, 7:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Gut, Immune, and Vascular Health in Metabolically Healthy Obesity

NCT07559227
View directory record Official record
Conditions
Metabolically Healthy Obesity
Interventions
Inulin Supplementation, Maltodextrin (Placebo), High-fat meal
Dietary Supplement · Other
Lead sponsor
Ball State University
Other
Eligibility
18 Years to 55 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Muncie, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional

A Nutritional Intervention for Diabetic Neuropathy

NCT01690962
View directory record Official record
Conditions
Diabetic Neuropathy
Interventions
Vegan diet and vitamin B12 supplement, Vitamin B12 supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 3, 2014 · Synced Sep 17, 2026, 7:40 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Efficacy of Diet on Quality of Life in Multiple Sclerosis

NCT05007483
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
BodyBio Balance Oil, Kirunal Fish Oil, BodyBio PC, Modified Paleolithic Elimination diet, Time Restricted Olive Oil Based (TROO) Ketogenic Diet, Usual diet with Dietary Guidelines for Americans Diet information
Dietary Supplement · Behavioral
Lead sponsor
Terry L. Wahls
Other
Eligibility
18 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Sep 17, 2026, 7:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Pragmatic Rehabilitation Intervention: The Active Rehab Study

NCT05320822
View directory record Official record
Conditions
Concussion, Brain
Interventions
Active Rehab (Group 2), Progressive Return to Activity (Group 1)
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Fort Liberty, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 17, 2026, 7:40 AM EDT
Recruiting Not applicable Interventional

Nicotinamide Riboside Clinical Trial for GWI

NCT05243290
View directory record Official record
Conditions
Gulf War Illness
Interventions
Nicotinamide Riboside, Placebo
Dietary Supplement
Lead sponsor
Roskamp Institute Inc.
Other
Eligibility
47 Years to 70 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Fort Lauderdale, Florida • Sarasota, Florida
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Sep 17, 2026, 7:40 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Cardiac and Vascular Responses to Creatine Supplementation in Elderly Men

NCT05329480
View directory record Official record
Conditions
Cardiac Function and Hemodynamics
Interventions
Creatine Monohydrate, Maltodextrin
Dietary Supplement
Lead sponsor
Radford University
Other
Eligibility
55 Years to 80 Years · Male only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Phase 2 Interventional Results available

Study of Pralatrexate to Treat Participants With Relapsed or Refractory B-cell Non-Hodgkin's Lymphoma

NCT00998946
View directory record Official record
Conditions
Lymphoma, B-Cell
Interventions
Pralatrexate, Vitamin B12, Folic Acid
Drug · Dietary Supplement
Lead sponsor
Spectrum Pharmaceuticals, Inc
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
11
States / cities
Beverly Hills, California • Post Falls, Idaho • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics on Stress-associated Gastrointestinal Function in University Students

NCT03056846
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Probiotic Combination, Bifidobacterium bifidum, Bifidobacterium longum
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
634 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 24, 2019 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Phase 2 Interventional Results available

Study Testing Benefits of Ursolic Acid (UA) as a Countermeasure To Myopenia and Insulin Resistance in Chronic Spinal Cord Injury (SCI)

NCT05776862
View directory record Official record
Conditions
Spinal Cord Injuries, Tetraplegia, Paraplegia, Muscle Loss, Atrophy, Muscular, Insulin Resistance
Interventions
Ursolic Acid, Strength Training
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Phase 1 Interventional Results available

The Impact of Zinc Supplementation on Left Ventricular Function in Nonischemic Cardiomyopathy

NCT00696410
View directory record Official record
Conditions
Heart Failure, Cardiomyopathies
Interventions
Zinc Acetate
Drug
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Sep 17, 2026, 7:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Growth and Adiposity in Newborns: The Influence of Prenatal Docosahexaenoic Acid (DHA) Supplementation

NCT03310983
View directory record Official record
Conditions
Pregnancy; Nutritional Diseases
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
254 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 17, 2026, 7:40 AM EDT
Recruiting Early Phase 1 Interventional

Study of Nicotinamide Riboside Supplementation in Allogeneic Hematopoietic Cell Transplantation

NCT04332341
View directory record Official record
Conditions
Allogeneic Hematopoietic Cell Transplantation
Interventions
Nicotinamide riboside (NR)
Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 17, 2026, 7:40 AM 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 17, 2026, 7:40 AM EDT
Completed Early Phase 1 Interventional

Nitrate Supplementation and Cerebrovascular and Cognitive Function in Metabolic Syndrome

NCT05532423
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Beetroot Juice - Active, beetroot juice - Placebo
Drug
Lead sponsor
Penn State University
Other
Eligibility
55 Years to 75 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 17, 2026, 7:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Single-Group Study to Examine the Efficacy of a Gut Health Supplement to Increase Metabolism, Improve Gut Health, and Support Weight Management

NCT06023082
View directory record Official record
Conditions
Gut Health, Metabolism, Weight Loss, Energy
Interventions
Colon Broom Premium supplement
Dietary Supplement
Lead sponsor
Gut Health, UAB
Industry
Eligibility
30 Years to 50 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2025 · Synced Sep 17, 2026, 7:40 AM EDT