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ClinicalTrials.gov public records Last synced Oct 20, 2026, 5:37 PM EDT

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Showing 1–24 of 1,274 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Dietary Supplementation Clear all
Not yet recruiting Phase 1 Interventional

High-Dose Vitamin C in G6PDA and Pyruvate Kinase Deficiency: A Safety Study

NCT07612345
View directory record Official record
Conditions
Pyruvate Kinase Deficiency, Glucose 6 Phosphate Dehydrogenase Deficiency
Interventions
Vitamin C
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistance Training With Milk Supplementation in Adolescents

NCT01190592
View directory record Official record
Conditions
Body Composition, Cardiovascular Risk Factors
Interventions
Resistance Training with Milk Supplementation in Adolescents
Other
Lead sponsor
University of Kansas
Other
Eligibility
12 Years to 14 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Oral Nutritional Supplementation in Children at Risk of Undernutrition

NCT05161000
View directory record Official record
Conditions
Undernutrition
Interventions
Oral Nutritional Supplement, Dietary counseling
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
36 Months to 107 Months
Enrollment
279 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
17
States / cities
Oneonta, Alabama • Glenwood, Arkansas • Hot Springs, Arkansas + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Oct 20, 2026, 5:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

HDL Function Dietary Supplement Safety and QOL

NCT04097119
View directory record Official record
Conditions
HDL, Health, Subjective
Interventions
Dietary supplementation
Dietary Supplement
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Phase 4 Interventional Results available

Omega Tots: A Randomized, Controlled Trial of Long-chain Polyunsaturated Fatty Acid Supplementation of Toddler Diets and Developmental Outcomes

NCT01576783
View directory record Official record
Conditions
Preterm Birth, Child Development
Interventions
Docosahexaenoic Acid + Arachidonic Acid (DHA+AA), Placebo
Drug · Dietary Supplement
Lead sponsor
Sarah Keim
Other
Eligibility
10 Months to 16 Months
Enrollment
377 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nitrate Supplementation and Muscle Blood Flow

NCT03459027
View directory record Official record
Conditions
Vasodilation, Blood Pressure, Active Hyperemia, Aging
Interventions
Super Beets, Beetroot powder
Dietary Supplement
Lead sponsor
University of Iowa
Other
Eligibility
60 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Liposomal Glutathione Supplementation in Healthy Subjects

NCT02278822
View directory record Official record
Conditions
Healthy
Interventions
Low dose oral liposomal glutathione supplementation, High dose oral liposomal glutathione supplementation
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
50 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2016 · Synced Oct 20, 2026, 5:37 PM EDT
Enrolling by invitation Not applicable Interventional

Investigation of β-hydroxybutyrate Supplementation as Chemoprevention in Familial Adenomatous Polyposis

NCT06578637
View directory record Official record
Conditions
FAP, Familial Adenomatous Polyposis
Interventions
R-1,3-Butanediol (10G-A), R-1,3-Butanediol (20G-A), R-1,3-Butanediol (30G-A), R-1,3-Butanediol (30G-B)
Dietary Supplement
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Bone Marrow Aspirate Concentrate (BMAC) Supplementation for Osteochondral Lesions

NCT02011295
View directory record Official record
Conditions
Osteochondral Lesions of Talus
Interventions
ankle arthroscopy with debridement and microfracture of the OLT, Bone Marrow Aspirate injection
Procedure · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 95 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 16, 2019 · Synced Oct 20, 2026, 5:37 PM EDT
Recruiting Phase 1 Interventional

Fecal Microbiota Transplant and Dietary Fiber Supplementation for the Treatment of Gut Graft Versus Host Disease

NCT05067595
View directory record Official record
Conditions
Intestinal Graft Versus Host Disease
Interventions
Colonoscopy, Fecal Microbiota Transplantation, Nutritional Supplementation, Survey Administration, Biospecimen Collection
Procedure · Biological · Dietary Supplement + 1 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Effects of Prebiotic Supplementation and Exercise on Inflammatory Markers, Vascular Function and Cognition in CKD

NCT03689569
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Resistant starch, Exercise, Starch
Dietary Supplement · Behavioral
Lead sponsor
Springfield College
Other
Eligibility
30 Years to 75 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of Dietary Supplementation and Its Effect

NCT05037877
View directory record Official record
Conditions
Quality of Life
Interventions
HUM supplement, Placebo
Dietary Supplement
Lead sponsor
HUM Nutrition, Inc.
Industry
Eligibility
38 Years to 60 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2022 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Determining the Ergogenic Effects of Carb10™ Supplementation on Carbohydrate-Rich and Carbohydrate-Restricted Diets

NCT03231514
View directory record Official record
Conditions
Ketogenic Dieting
Interventions
Carbohydrate Supplement (Carb10), Diet, Exercise
Dietary Supplement · Other
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years to 30 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Denton, Texas
Source: ClinicalTrials.gov public record
Updated Feb 20, 2018 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Multiple Daily Condensed Tannin Supplementation and Iron Bioavailability: The Tannin Dose Response Trial

NCT03030716
View directory record Official record
Conditions
Iron Deficiency Anemia, Iron-deficiency
Interventions
95% condensed proanthocyanidins from grape seed extract
Dietary Supplement
Lead sponsor
Kansas State University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 25, 2017 · Synced Oct 20, 2026, 5:37 PM 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 9, 2025 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Study Impact of Nutritional Supplementary Treatment of Undernourished Stroke Patient on Functional Outcome Measures

NCT00332800
View directory record Official record
Conditions
Stroke
Interventions
Nutritional Supplementation
Drug
Lead sponsor
Burke Rehabilitation Hospital
Other
Eligibility
18 Years to 95 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
White Plains, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2006 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Phase 2 Interventional Results available

Optimal Vitamin D3 Supplementation Strategies for Acute Fracture Healing

NCT02786498
View directory record Official record
Conditions
Fracture
Interventions
Vitamin D3, Placebo
Drug · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 50 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional

Magnesium Supplementation for Primary Prevention of Heart Failure in Obesity

NCT02966912
View directory record Official record
Conditions
Obesity
Interventions
400 mg of Magnesium Oxide twice daily for 24 weeks, Open label (none)
Dietary Supplement · Other
Lead sponsor
Providence VA Medical Center
Federal
Eligibility
30 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 24, 2023 · Synced Oct 20, 2026, 5:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effect of Lighting Supplementation on Daytime Cognition

NCT04745312
View directory record Official record
Conditions
Non-visual Effects of Light
Interventions
Visible light
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 18, 2022 · Synced Oct 20, 2026, 5:37 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Iron Supplementation and Intestinal Health

NCT04497012
View directory record Official record
Conditions
Anemia of Prematurity, Very Low Birth Weight Infant
Interventions
2mg/kg/day Iron Sulfate, 6 mg/kg/day Iron Sulfate
Drug
Lead sponsor
University of South Florida
Other
Eligibility
1 Day to 6 Months
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 20, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Almond Supplementation on Body Composition in Overweight/Obese Minority Adults

NCT02347007
View directory record Official record
Conditions
Obesity, Overweight, Fatty Liver, Metabolic Syndrome X
Interventions
Almond, Cereal Bar
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
30 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Oct 20, 2026, 5:37 PM EDT
Not yet recruiting Not applicable Interventional

2-HOBA Supplementation in People With Elevated Lipoprotein(a)

NCT07198009
View directory record Official record
Conditions
Hyperlipidemia, Elevated Lp(a)
Interventions
2-HOBA (Hobamine)
Dietary Supplement
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 69 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 20, 2026, 5:37 PM EDT
Withdrawn No phase listed Observational

The Effect of Omega-3 Fatty Acid Supplementation on Intraocular Pressure & Ocular Surface

NCT02295358
View directory record Official record
Conditions
Open Angle Glaucoma, Ocular Hypertension
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 9, 2015 · Synced Oct 20, 2026, 5:37 PM EDT
Not listed Not applicable Interventional

Vitamin B6, B12, Folic Acid and Exercise in Parkinson's Disease

NCT01238926
View directory record Official record
Conditions
Parkinson's Disease
Interventions
PD vitamin supplementation, PD exercise intervention, PD vitamin + exercise
Dietary Supplement · Other
Lead sponsor
New York Institute of Technology
Other
Eligibility
50 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Old Westbury, New York
Source: ClinicalTrials.gov public record
Updated Nov 11, 2010 · Synced Oct 20, 2026, 5:37 PM EDT