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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: multivitamin Clear all
Completed Not applicable Interventional Results available

Therapeutic Diets in Alzheimer's Disease

NCT03860792
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Ketogenic Diet, Therapeutic Lifestyles Changes Diet
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
50 Years to 90 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Fairway, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Results available

Brain Energy for Amyloid Transformation in Alzheimer's Disease Study

NCT03472664
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
low carbohydrate/high fat diet, low fat/high carbohydrate diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years to 85 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin/Mineral Absorption From Two Different Supplements

NCT05336994
View directory record Official record
Conditions
Healthy Nutrition
Interventions
Multivitamin/mineral supplement A, Multivitamin/mineral supplement B
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 32 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Sep 18, 2026, 5:09 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nutrition to Support Postoperative Recovery

NCT07109505
View directory record Official record
Conditions
Postoperative Care, Postoperative Complications, Cognition, Nutritional Assessment, Nutritional Intervention
Interventions
Nutritional Shake, Nutritional Instructions Only
Dietary Supplement · Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
70 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Sep 18, 2026, 5:09 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 Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluate the Effects of Repeated Periods of Modified Fasting to Support Healthy Natural Weight Management and Prevention of Weight Gain

NCT03372109
View directory record Official record
Conditions
Body Weight Changes
Interventions
Meal replacement shake, Multivitamin and mineral capsules, Fish oil with sesame lignans and olive extract softgel, Prebiotic Chewable tablet, Clove Extract and Maqui Berry extract capsule, .Whole Food Blend capsule, Turmeric extract capsule, European White Kidney Bean capsule, Saffron extract capsule, Ubiquinol with Fulvic acid complex softgel, Calcium with Hesperidin and gynostemma extract tablet, Multivitamin and mineral supplement
Dietary Supplement
Lead sponsor
Supplement Formulators, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 18, 2026, 5:09 AM EDT
Recruiting Not applicable Interventional

Carbohydrate Beta Cell Function and Glucose Control in Children With Diabetes

NCT05899166
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Ketogenic diet, food delivery and education, Standard diet, food delivery and education
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
5 Years to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 23, 2025 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Phase 2 Interventional

Effects of Herbal Antioxidants on Cardiovascular Disease in Older Blacks

NCT00010725
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
MAK, Vitamin Supplements
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
60 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Fairfield, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 11, 2010 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Antacid and Multivitamin and Mineral Tablet on the Study Drug GSK1349572

NCT00858455
View directory record Official record
Conditions
Healthy Volunteer
Interventions
GSK1349572 and MaaloxAdvanced Maximum Strength, GSK1349572 and Maalox Advanced Maximum Strength, GSK1349572 and One A Day, GSK1349572
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 4, 2009 · Synced Sep 18, 2026, 5:09 AM EDT
Active, not recruiting Phase 2 Interventional

Controlled Trial of Omadacycline Randomized Treatment Given for Bone and Joint Infection

NCT05753215
View directory record Official record
Conditions
Bone Infection, Joint Infection, Bone and Joint Infection
Interventions
Omadacycline Pill, Standard of Care
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating the Effects of Cocoa Flavanol on Cognition Assessed Online

NCT04582617
View directory record Official record
Conditions
Aging, Cognitive Change
Interventions
Cocoa Extract, Cocoa Extract Placebo, Multivitamin, Multivitamin placebo
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
65 Years and older
Enrollment
3,959 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Ovarian Morphology and Function in Overweight Women During Weight Loss

NCT01785719
View directory record Official record
Conditions
Weight Loss, Anovulation, Amenorrhea, Infertility
Interventions
Commercial Weight Loss Program
Behavioral
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2023
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 18, 2026, 5:09 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

PUSH Plus Protein Pilot for Hip Fracture Patients

NCT03410823
View directory record Official record
Conditions
Hip Fracture
Interventions
PUSH, Protein, Nutrition
Behavioral · Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Baltimore, Maryland • Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Role of Centrum® Silver® in Improving Micronutrient Status in Older Men

NCT03004807
View directory record Official record
Conditions
Vitamin Deficiency, Mineral Deficiency, Aging
Interventions
Centrum Silver Mens' Formula, Control
Dietary Supplement · Other
Lead sponsor
Oregon State University
Other
Eligibility
65 Years and older · Male only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Single Photon Emission Computed Tomography (SPECT) Imaging Study of Professional American Football Players

NCT01515839
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Multivitamin Supplement intervention
Dietary Supplement
Lead sponsor
Amen Clinics, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Newport Beach, California
Source: ClinicalTrials.gov public record
Updated Jan 23, 2012 · Synced Sep 18, 2026, 5:09 AM EDT
Terminated Phase 4 Interventional

Effect of Perioperative Acetaminophen Dosing on Patients Undergoing Surgical Treatment of Basilar Thumb Arthritis

NCT05556356
View directory record Official record
Conditions
Carpometacarpal Osteoarthritis
Interventions
Acetaminophen, Placebo: Multivitamin
Drug · Other
Lead sponsor
Indiana Hand to Shoulder Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 18, 2026, 5:09 AM EDT
Not yet recruiting Not applicable Interventional

Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm Infants

NCT07736768
View directory record Official record
Conditions
Premature, Preterm Infant Health, Vitamin A Deficiency, Human Milk, Breastfeeding
Interventions
Oral multivitamin containing vitamin A
Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Phase 2 Interventional Results available

Resuscitative Endocrinology:Single-dose Clinical Uses for Estrogen-Traumatic Brain Injury

NCT00973674
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Premarin IV, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 11, 2019 · Synced Sep 18, 2026, 5:09 AM EDT
Recruiting Not applicable Interventional

Effects of Ketosis on Brain Function in Patients With T1DM

NCT04219709
View directory record Official record
Conditions
Type1diabetes
Interventions
Very low carbohydrate diet, Standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)

NCT00920621
View directory record Official record
Conditions
Asthma
Interventions
Vitamin D 3 cholecalciferol, Vitamin D3
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
876 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
3
States / cities
San Diego, California • Boston, Massachusetts • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Brains & Behavior: Understanding and Treating Youth Aggression

NCT00842439
View directory record Official record
Conditions
Aggression
Interventions
CBI, NUT
Behavioral · Dietary Supplement
Lead sponsor
University of Pennsylvania
Other
Eligibility
11 Years to 12 Years
Enrollment
335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2016 · Synced Sep 18, 2026, 5:09 AM EDT
Completed Phase 1Phase 2 Interventional

Intravenous Micronutrient Therapy (IVMT) for Fibromyalgia

NCT00067405
View directory record Official record
Conditions
Fibromyalgia
Interventions
Intravenous micronutrient therapy
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 21, 2008 · Synced Sep 18, 2026, 5:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Impact of Jump Start Nutrition Program on Weight Loss and Associated Measures

NCT05443269
View directory record Official record
Conditions
Weight Loss
Interventions
Jump Start Nutritional Program
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 4, 2022 · Synced Sep 18, 2026, 5:09 AM EDT
Withdrawn Phase 4 Interventional

Histidine Oral Supplementation as a Therapeutic Modality for Alzheimer's Disease

NCT06169826
View directory record Official record
Conditions
Alzheimer Disease
Interventions
l-Histidine, Control
Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 18, 2026, 5:09 AM EDT