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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Effect of Food Supplement Clear all
Completed Not applicable Interventional

Immune-modulation Effects of an Arginine Rich Nutritional Supplement in Surgical Patients

NCT01885728
View directory record Official record
Conditions
Immunity
Interventions
An arginine rich nutritional supplement
Dietary Supplement
Lead sponsor
Martin Angst
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2016 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Phase 2 Interventional

The Effect of Fish Oil Plus Fenofibrate on Triglyceride Levels in People Taking Highly Active Antiretroviral Therapy (HAART)

NCT00076518
View directory record Official record
Conditions
HIV Infections, Hypertriglyceridemia
Interventions
Fenofibrate, Fish Oil
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
5
States / cities
San Francisco, California • Atlanta, Georgia • Cincinnati, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jun 10, 2026, 10:37 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Limosilactobacillus Reuteri DSM 17648 in Healthy Adults Reporting Upper Gastrointestinal Discomfort

NCT07163637
View directory record Official record
Conditions
Healthy Participants, Upper Gastrointestinal Discomfort
Interventions
Limosilactobacillus reuteri DSM 17648, Placebo
Dietary Supplement
Lead sponsor
Novozymes A/S
Industry
Eligibility
30 Years to 70 Years
Enrollment
324 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Jun 10, 2026, 10:37 AM EDT
Terminated Phase 2 Interventional

Study to Evaluate Dietary Supplementation With a Version of Anatabloc(R) in Subjects With Alzheimer's Disease

NCT01669876
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Anatabloc(R), Placebo
Dietary Supplement
Lead sponsor
Rock Creek Pharmaceuticals, Inc.
Industry
Eligibility
65 Years to 90 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Sarasota, Florida
Source: ClinicalTrials.gov public record
Updated Apr 29, 2015 · Synced Jun 10, 2026, 10:37 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Acute Effects of Onnit Alpha Brain on Cognition and Mood States

NCT07495592
View directory record Official record
Conditions
Cognitive, Mood and Cognitive Performance, Sleep Deprivation, Executive Function (Cognition), Fatigue
Interventions
Alpha Brain proprietary cognitive dietary supplement, Alpha Brain 2.0 proprietary cognitive dietary supplement, Controlled Placebo
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
20 Years to 59 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional

A Single Group Study to Evaluate the Effects of a Probiotic Supplement on Vaginal Health.

NCT06506357
View directory record Official record
Conditions
Vaginal Health, Women's Health
Interventions
Good Girl Probiotics
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Nutritional Supplement on Nutrient Status and Quality of Life

NCT06332898
View directory record Official record
Conditions
Nutrition, Healthy, Gastrointestinal Microbiome, Healthy Aging
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 60 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Dietary Supplement on Markers of Glucose Control and Quality of Life

NCT05573607
View directory record Official record
Conditions
Blood Glucose
Interventions
Placebo, Chromium
Dietary Supplement
Lead sponsor
The Center for Applied Health Sciences, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 9, 2022 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Proprietary Dietary Supplement on Fecal Volatile Organic Compounds

NCT02871596
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Flavonoids, Flavonoids+Prebiotics
Other · Dietary Supplement
Lead sponsor
Pharmanex
Industry
Eligibility
18 Years to 70 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Jun 10, 2026, 10:37 AM EDT
Completed No phase listed Observational

Probiotics/TPN in the NICU

NCT04977817
View directory record Official record
Conditions
Total Parenteral Nutrition, Necrotizing Enterocolitis of Newborn
Interventions
Similac Probiotic Tri-Blend
Dietary Supplement
Lead sponsor
Pediatrix
Other
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Mesa, Arizona • Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 28, 2022 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A 12 Week, 3-Period Study to Evaluate the Effects of a Dietary Supplement on Lipid Metabolism

NCT02366156
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Placebo, Low Dose Grape Blend, High Dose Grape Blend
Dietary Supplement
Lead sponsor
Access Business Group
Industry
Eligibility
18 Years to 70 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Jun 10, 2026, 10:37 AM EDT
Terminated Phase 4 Interventional Results available

Effects of Supplementation With PUFAs and Antioxidants for Contact Lens Discomfort

NCT04163328
View directory record Official record
Conditions
Dry Eye, Contact Lens Complication
Interventions
HydroEye®
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Dietary Supplement Containing Salacia Extract, Citrus Bioflavonoids, and Trivalent Chromium on Markers of Glucose Control

NCT05887050
View directory record Official record
Conditions
Glucose Intolerance
Interventions
Active, Placebo
Dietary Supplement
Lead sponsor
The Center for Applied Health Sciences, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Effect of Vitamin K on Age-Related Bone Loss and Vascular Calcification

NCT00183001
View directory record Official record
Conditions
Osteoporosis, Vascular Calcification, Inflammation
Interventions
Vitamin K
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
60 Years to 80 Years
Enrollment
452 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 15, 2009 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Multivitamin/Multimineral/Phytochemical Dietary Supplement on Indices of Human Health

NCT03146312
View directory record Official record
Conditions
Healthy
Interventions
MVM/phytochemical supplement, Placebo
Dietary Supplement
Lead sponsor
USANA Health Sciences
Industry
Eligibility
20 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Vitamin C Enriched Hydrolyzed Collagen, PrimaColl™, Whey Protein, or Placebo on Collagen Synthesis

NCT05427279
View directory record Official record
Conditions
Effect of Food Supplement
Interventions
Placebo, Hydrolized Collagen, PrimaColl, Whey protein
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a 10 Component Dietary Supplement on Health and the Quality of Life

NCT03052491
View directory record Official record
Conditions
Blood Pressure, HDL Low, Stress, Lung Function Decreased, Quality of Life, Energy Supply; Deficiency, Concentration Ability Impaired, Joint Instability, Immune Deficiency
Interventions
Stem Cell 100+
Dietary Supplement
Lead sponsor
Centagen, Inc.
Industry
Eligibility
35 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Branched Chain Amino Acid Plus Glucose Supplement Reduces Exercise-Induced Delayed Onset Muscle Soreness in College Females

NCT01781910
View directory record Official record
Conditions
Exercise-induced Delayed Onset Muscle Soreness
Interventions
Branched Chain Amino Acid drink supplement, Placebo
Dietary Supplement
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 25 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 31, 2013 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Placebo Controlled Double Masked Clinical Assessment Study of Essential Fatty Acid Supplement and Its Effect on Patients With Apparent Aqueous Deficient Dry Eye Syndrome

NCT00344721
View directory record Official record
Conditions
Dry Eye Syndrome
Interventions
Omega-3 fatty acid supplement, Placebo
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 13, 2018 · Synced Jun 10, 2026, 10:37 AM EDT
Active, not recruiting Not applicable Interventional

Monounsaturated Fatty Acid Supplementation for Overweight and Obese Individuals With Prediabetes

NCT05560971
View directory record Official record
Conditions
PreDiabetes, Insulin Resistance, Overweight, Obesity
Interventions
Palmitoleic acid, Placebo
Dietary Supplement · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Female Hormone Balance Supplement on Premenstrual Syndrome Symptoms

NCT07018479
View directory record Official record
Conditions
Premenstrual Syndrome
Interventions
FemmeBalance Supplement Group
Dietary Supplement
Lead sponsor
VINABAS FORMULATIONS SL
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Jun 10, 2026, 10:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carbohydrate-Protein Supplementation During Endurance Running

NCT00972387
View directory record Official record
Conditions
Supplementation During Endurance Performance
Interventions
CHO, CHO-P, CHO-CHO, PLA, CHO-P, CHO-CHO, PLA, CHO, CHO-CHO, PLA, CHO, CHO-P, PLA, CHO, CHO-P, CHO-CHO
Dietary Supplement
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Jun 10, 2026, 10:37 AM EDT
Terminated Phase 4 Interventional

Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease

NCT00571285
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Vitamin D3, Vitamin D3 - high dose, Placebo
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 89 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 23, 2017 · Synced Jun 10, 2026, 10:37 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Immediate and Long-term Effects of a Novel Marine-based Iron Supplement in Adult Females

NCT07199244
View directory record Official record
Conditions
Anemia, Iron Deficiency (Without Anemia), Iron Absorption
Interventions
marine-based heme iron
Dietary Supplement
Lead sponsor
Nutraceuticals Research Institute
Other
Eligibility
21 Years to 42 Years · Female only
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Huntsville, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Jun 10, 2026, 10:37 AM EDT