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Showing 1–24 of 896 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Nutritional Supplements Clear all
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 Jun 10, 2026, 10:06 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Study to Evaluate the Efficacy of an Avocado Dietary Supplement

NCT07354308
View directory record Official record
Conditions
Overweight, Metabolic Health, Insulin Resistance
Interventions
Metavo Supplement, Placebo
Dietary Supplement
Lead sponsor
SP Nutraceuticals Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Multi-vitamin Supplement in Adult Females

NCT03828097
View directory record Official record
Conditions
Health, Subjective
Interventions
Experimental supplement, Placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 27, 2020 · Synced Jun 10, 2026, 10:06 AM EDT
Recruiting Phase 2 Interventional

Clinical Trial of the Seaweed Supplement Fucoidan in Survivors of Cancer

NCT06295588
View directory record Official record
Conditions
Fatigue, Inflammation
Interventions
Fucoidan extracted from F. Vesiculosus, Fucoidan extracted from U. Pinnatifida
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Results available

Research on Improving Sleep During Pregnancy

NCT05017974
View directory record Official record
Conditions
Sleep, Pregnancy Related
Interventions
Mindfulness-Based Stress Reduction plus Prenatal Sleep supplement, Treatment as Usual
Behavioral · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional

Bovine Lactoferrin Supplement in Improving Taste in Patients With Cancer Receiving Chemotherapy

NCT01941810
View directory record Official record
Conditions
Anorexia, Cachexia, Malignant Neoplasm, Oral Complications of Chemotherapy
Interventions
bovine lactoferrin supplement, questionnaire administration, quality-of-life assessment, laboratory biomarker analysis
Dietary Supplement · Other · Procedure
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Winston-Salem, North Carolina • Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Jun 10, 2026, 10:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Developing a Model to Better Predict Diabetes and/or Risk of Developing Diabetes

NCT04905485
View directory record Official record
Conditions
Diabetes Type 2, Diabetes, Pre-diabetes
Interventions
VIOME Precision Nutrition Program
Behavioral
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
2,912 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jun 10, 2026, 10:06 AM EDT
Active, not recruiting Phase 2 Interventional

Juice Plus+ and Juice Plus+ Complete in Ovarian Cancer

NCT01439659
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Nutritional Counseling, Daily Supplements
Behavioral · Dietary Supplement
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years and older · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Jun 10, 2026, 10:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cognitive Vitality Pilot Study

NCT07208279
View directory record Official record
Conditions
Aging, Healthy Aging, Cognition, Memory, Brain
Interventions
Axolt Brain Supplement, Bolero - Flavored Drink Placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
55 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
West Palm Beach, Florida
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Jun 10, 2026, 10:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Juice Plus Supplement Clinical Trial

NCT04656860
View directory record Official record
Conditions
Cognitive Impairment, Alzheimer Disease, Early Onset, Mild Cognitive Impairment
Interventions
Juice Plus+
Dietary Supplement
Lead sponsor
University of Alabama, Tuscaloosa
Other
Eligibility
55 Years to 90 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Tuscaloosa, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Palmitoleic Isomer Study

NCT02311790
View directory record Official record
Conditions
Insulin Sensitivity
Interventions
Trans-C16:1 supplement, Cis-C16:1 supplement
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
18 Years to 70 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Jun 10, 2026, 10:06 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Clinical Study to Assess the Effects of Prebiotic and Probiotic Supplement

NCT06794619
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with actives
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
18 Years to 50 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional

White Wine or Nutritional Supplement in Improving Appetite in Patients With Cancer

NCT00936728
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
therapeutic nutritional supplementation, white wine, questionnaire administration
Other · Dietary Supplement
Lead sponsor
Academic and Community Cancer Research United
Other
Eligibility
21 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
4
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Echinacea-based Supplement Does Not Improve Markers of Performance in Athletes

NCT02134119
View directory record Official record
Conditions
Ineffective Erythropoiesis
Interventions
Echinacea-based dietary supplement, Placebo
Dietary Supplement · Drug
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 44 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Jan 4, 2017 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Phase 2 Interventional

N-Acetylcysteine and Milk Thistle for Treatment of Diabetic Nephropathy

NCT00915200
View directory record Official record
Conditions
Diabetic Nephropathies, Proteinuria, Oxidative Stress
Interventions
N-acetylcysteine, silibin, high-dose silibin, N-acetylcysteine placebo, silibin placebo
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 70 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2016 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional

Vitamin C Supplement for Lumbar Spine Surgery

NCT03918694
View directory record Official record
Conditions
Lumbar Spine Surgery
Interventions
Vitamin C, Placebo
Dietary Supplement
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
45 Years to 80 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Jun 10, 2026, 10:06 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Oral Nutrition Impact on Tear Film

NCT01561040
View directory record Official record
Conditions
Dry Eye Syndrome
Interventions
Omega 3, Vitamins A, D3 and E
Dietary Supplement
Lead sponsor
Eye and Vision Technologies and Research Institute
Network
Eligibility
18 Years to 79 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
4
States / cities
Conifer, Colorado • Oak Lawn, Illinois • Lexington, Kentucky + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2012 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of a Supplement on Energy and Mood

NCT07398521
View directory record Official record
Conditions
Mood, Stress
Interventions
Liposomal Magnesium Complex
Dietary Supplement
Lead sponsor
Cymbiotika, LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Jun 10, 2026, 10:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of GlutenShield, a Prebiotic, Probiotic, and Enzyme Supplement, on the Gut Microbiome of Adults With GI Symptoms

NCT03403387
View directory record Official record
Conditions
Gastrointestinal Symptoms
Interventions
GlutenShield, Placebo
Dietary Supplement · Other
Lead sponsor
East Tennessee State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Johnson City, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Jun 10, 2026, 10:06 AM EDT
Not yet recruiting Not applicable Interventional

Percepta for Cognitive Optimization

NCT07612449
View directory record Official record
Conditions
Mild Cognitive Impairment (MCI), Memory
Interventions
Percepta, Placebo
Dietary Supplement
Lead sponsor
Cerebrum DAO Association
Other
Eligibility
40 Years to 85 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of SNAP-Ed Among Bhutanese Adults Residing in New Hampshire

NCT06445452
View directory record Official record
Conditions
Supplemental Nutrition Assistance Program Education, Bhutanese Refugee Adults
Interventions
Direct SNAP-Ed
Behavioral
Lead sponsor
University of New Hampshire
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Manchester, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Jun 10, 2026, 10:06 AM EDT
Terminated Phase 2 Interventional

Effects of Pycnogenol on Cardiac Fibrosis and Diastolic Dysfunction in Aged Hypertensive Subjects

NCT00952627
View directory record Official record
Conditions
Cardiac Fibrosis, Diastolic Dysfunction
Interventions
Pycnogenol, Placebo
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
50 Years to 75 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 16, 2013 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

MI With Text Messaging to Reduce Sexual Risk and Hazardous Drinking Among MSM

NCT03755661
View directory record Official record
Conditions
Alcohol; Harmful Use, Sex, Unsafe
Interventions
MI&TXT4MSM
Behavioral
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
21 Years to 50 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2021 · Synced Jun 10, 2026, 10:06 AM EDT
Completed Phase 4 Interventional

DaVita Assessment of Nutritional Supplement Effects (DANSE)

NCT00895401
View directory record Official record
Conditions
Malnutrition
Interventions
Nepro with Carb Steady, Standard of Care
Dietary Supplement · Other
Lead sponsor
Davita Clinical Research
Industry
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Feb 7, 2011 · Synced Jun 10, 2026, 10:06 AM EDT