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Showing 1–24 of 870 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 4 Interventional

Glutamine Popsicles in Bone Marrow Transplant (BMT)/Hematopoietic Stem Cell Transplant (HSCT) Patients

NCT00204958
View directory record Official record
Conditions
Bone Marrow Transplantation, Hematopoietic Stem Cell Transplantion
Interventions
nutritional supplement, glutamine popsicle
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
4 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 30, 2015 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

BLOODSAFE Ghana- Iron and Nutritional Counselling Strategy

NCT06101238
View directory record Official record
Conditions
Blood Donation
Interventions
supplementation with low dose elemental iron
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
533 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of Probiotics to Aid in Weight Loss

NCT01445704
View directory record Official record
Conditions
Weight Loss
Interventions
Probiotics, Placebo
Dietary Supplement
Lead sponsor
Prisma Health-Upstate
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Commercially Available Synbiotic on the Gut Microbiome and Cardiometabolic Health

NCT07515443
View directory record Official record
Conditions
Hypertension, Gut Dysbiosis, Overweight , Obesity
Interventions
Synbiotic, Placebo
Dietary Supplement
Lead sponsor
Southern Utah University
Other
Eligibility
18 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Cedar, Utah
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Not listed Not applicable Interventional

C15:0 Supplementation in Young Adults at Risk for Metabolic Syndrome

NCT04947176
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Supplement, Placebo
Dietary Supplement · Other
Lead sponsor
Jeffrey B. Schwimmer, MD
Other
Eligibility
18 Years to 25 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced Sep 5, 2026, 6:45 AM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers

Trenev Trio/Healthy Trinity for Symptoms of Diarrhea-predominant Irritable Bowel Syndrome (IBS) and Functional Dyspepsia

NCT01268618
View directory record Official record
Conditions
IBS-D and Functional Dyspepsia
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Sprim Advanced Life Sciences
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
2
States / cities
Duluth, Georgia • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 20, 2011 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Iron Source on the Growth of Enteric Pathogens

NCT05314062
View directory record Official record
Conditions
Iron-deficiency, Iron Deficiency Anemia, Iron Deficiency Anemia Treatment
Interventions
FeSO4, Ao iron
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
5 Years to 12 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 5, 2026, 6:45 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Probiotic Intervention Study

NCT06030362
View directory record Official record
Conditions
Obesity, Food Addiction
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Phase 2 Interventional Results available

BCAA Supplementation for Concussion

NCT01860404
View directory record Official record
Conditions
Brain Concussion
Interventions
Branched Chain Amino Acids, Placebo solution
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
11 Years to 34 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 13, 2024 · Synced Sep 5, 2026, 6:45 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Gut Microbiome Response to Long-Haul Travel in Elite Football Players

NCT07585474
View directory record Official record
Conditions
Microbial Composition, Immune Function
Interventions
Probiotic Capsule, Placebo
Drug
Lead sponsor
Sheffield Hallam University
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Baby Bump Lifestyle Intervention Supplement Study

NCT03751813
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Supplement
Dietary Supplement
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparative Effectiveness of Vitamin D and Repletion Strategies

NCT01524874
View directory record Official record
Conditions
Hypovitaminosis D, Insulin Resistance, Diabetes
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Bastyr University
Other
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Kailua-Kona, Hawaii • Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Feb 1, 2012 · Synced Sep 5, 2026, 6:45 AM EDT
Terminated Phase 2 Interventional Results available

MemoryXL Effects on Mild Cognitive Impairment Patients

NCT00903695
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Memory XL, placebo
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
55 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 25, 2012 · Synced Sep 5, 2026, 6:45 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Supplements for Controlling Resistance to Insulin

NCT00699413
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Type 2
Interventions
nutrition education plus active supplement, nutrition education plus inactive supplement
Drug
Lead sponsor
University of Southern California
Other
Eligibility
13 Years to 17 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 5, 2026, 6:45 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Gastrointestinal And Metabolic Effects From a Prebiotic, Lifting, and Aerobic iNtervention

NCT05207488
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Fructooligosaccharides (FOS), Exercise, Placebo
Dietary Supplement · Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
20 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 9, 2022 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Natural Protein vs. Protein Supplements on Peritoneal Dialysis Patients

NCT03569410
View directory record Official record
Conditions
Peritoneal Dialysis Complication, Hypoalbuminemia, Malnutrition
Interventions
increased protein intake via natural foods, increase protein intake via protein supplements
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Phase 2 Interventional Results available

Gulf War Illness: Evaluation of an Innovative Detoxification Program

NCT01672710
View directory record Official record
Conditions
Gulf War Illness
Interventions
plain crystalline niacin, exercise, sauna
Drug
Lead sponsor
University at Albany
Other
Eligibility
Not listed
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Annapolis, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 12, 2020 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional

Vitamin D to Improve Glucose Metabolism and Reduce Inflammation in Obese Adolescents

NCT00994396
View directory record Official record
Conditions
Obesity, Glucose Intolerance, Inflammation
Interventions
Placebo, Vitamin D 3 cholecalciferol
Dietary Supplement
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
9 Years to 19 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 5, 2016 · Synced Sep 5, 2026, 6:45 AM EDT
Recruiting Phase 2 Interventional

A Study on Using Cell-Free Tumor DNA (ctDNA) Testing to Decide When to StartRoutine Treatment in People With Human Papilloma Virus (HPV)- Associated Oropharynx Cancer (OPC)

NCT05307939
View directory record Official record
Conditions
HPV, Oropharynx Cancer, HPV-Related Carcinoma, HPV-Related Malignancy, HPV Positive Oropharyngeal Squamous Cell Carcinoma
Interventions
HPV ctDNA Assay, MRI Studies, EORTC QLQ H&N 35 and C30, MDADI-HN, COST-FACIT, Intensity-Modulated Radiation Therapy (Arm A), Chemoradiation (Arm B)
Diagnostic Test · Behavioral · Radiation + 1 more
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
8
States / cities
Miami, Florida • Basking Ridge, New Jersey • Middletown, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Nutritional Preconditioning on the Patient's Outcomes After Surgery

NCT03692507
View directory record Official record
Conditions
Major Abdominal/GI Surgery
Interventions
HMB, Protein and HMB, ERAS
Dietary Supplement
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2021 · Synced Sep 5, 2026, 6:45 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Prospective Study on Power Prenatal Vitamins for Males on YO Score At-home Sperm Test Results

NCT05951075
View directory record Official record
Conditions
Spermatogenesis and Semen Disorders, Infertility, Male
Interventions
Power Prenatal for Sperm
Dietary Supplement
Lead sponsor
The Bird and Be Co Inc
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Encino, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 5, 2026, 6:45 AM EDT
Recruiting Phase 2 Interventional

FAST for DM - Fatty Acid Supplementation Trial (FAST) for Dermatomyositis (DM)

NCT07111065
View directory record Official record
Conditions
Dermatomyositis (DM), Juvenile Dermatomyositis (JDM)
Interventions
FISH OIL 500MG OMEGA-3 SOFT GEL MINIS, Placebo
Dietary Supplement
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 60 Years
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 5, 2026, 6:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of 7 Days of Grape Seed Extract Supplementation on Cold Pressor Test and Muscle Metaboreflex in Individuals With Elevated and Stage 1 Hypertension

NCT06428890
View directory record Official record
Conditions
Prehypertension
Interventions
Grape Seed Extract, Placebo
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Sep 5, 2026, 6:45 AM EDT
Recruiting Not applicable Interventional

MOTION Clinical Trial

NCT06843980
View directory record Official record
Conditions
Osteoarthritis, Knee
Interventions
MISHA Knee System, Non-Surgical Treatment
Device · Other
Lead sponsor
Moximed
Industry
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
9
States / cities
Davis, California • Oceanside, California • Sacramento, California + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 5, 2026, 6:45 AM EDT