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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: maltodextrin supplement Clear all
Completed Not applicable Interventional Accepts healthy volunteers

How Does a Synbiotic Supplement Affect Iron Status During Iron Repletion in Iron Depleted Female Athletes?

NCT03793959
View directory record Official record
Conditions
Iron-deficiency
Interventions
Synbiotic Supplement, Placebo
Dietary Supplement
Lead sponsor
Marywood University
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Scranton, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

The Effect of Protein Supplementation on Bone Health in Healthy Older Men and Women

NCT00421408
View directory record Official record
Conditions
Bone Resorption, Osteoporosis
Interventions
Whey protein supplement, Placebo
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
60 Years to 85 Years
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
2
States / cities
Farmington, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Sep 18, 2026, 2:06 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Yeast Mannans and Stool Frequency

NCT06911177
View directory record Official record
Conditions
Defecation Frequency
Interventions
Yeast mannan, Control (placebo)
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 90 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Berberine and Dihydroberberine and Their Impact on Glycemia

NCT05021341
View directory record Official record
Conditions
Glycemia
Interventions
Berberine, Dihydroberberine 200, Dihydroberberine 100, Placebo
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 24, 2021 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fiber and Fish Oil Supplements for the Prevention of Colorectal Cancer

NCT04211766
View directory record Official record
Conditions
Healthy Subject
Interventions
Dietary Fiber, Fish Oil, Comparator
Dietary Supplement · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
50 Years to 75 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Creatine Timing on Resistance Training Adaptations in College Athletes

NCT05451498
View directory record Official record
Conditions
Healthy
Interventions
Creatine, Maltodextrin
Dietary Supplement
Lead sponsor
Rocky Mountain University of Health Professions
Other
Eligibility
19 Years to 30 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Provo, Utah
Source: ClinicalTrials.gov public record
Updated Jul 11, 2022 · Synced Sep 18, 2026, 2:06 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Native Chicory Inulin on Change and Persistence of Gut Microbiota

NCT06528041
View directory record Official record
Conditions
Healthy
Interventions
Inulin, Maltodextrin
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 18, 2026, 2:06 PM EDT
Terminated Phase 1 Interventional

Probiotics in the Reduction of Antibiotic Associated Diarrhea

NCT02589964
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Florajen-3, Placebo
Dietary Supplement · Other
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years to 120 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 30, 2016 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Choline and Cardiometabolic Health

NCT04764162
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Choline, Placebo
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years to 79 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional

The Use of A Prebiotic to Promote a Healthy Gut Microbiome in Pediatric Stem Cell Transplant Recipients

NCT04111471
View directory record Official record
Conditions
Microbial Colonization
Interventions
Prebiotics, Placebos
Dietary Supplement
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
2 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Nutritional Product on Nutrient Gaps and Gut Health in Active Adults

NCT06521424
View directory record Official record
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy, Exercise
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Hempstead, New York
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pharmacokinetic Study of a Novel Nutritional Product on Healthy Men and Women

NCT06316700
View directory record Official record
Conditions
Healthy Aging
Interventions
Nutritional supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Prenatal Probiotic Intervention

NCT03240419
View directory record Official record
Conditions
Childhood Obesity, Maternal Obesity During Childbirth, Insulin Resistance, Inflammation
Interventions
Probiotics, Placebo
Dietary Supplement
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jan 17, 2022 · Synced Sep 18, 2026, 2:06 PM 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 Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Onnit Labs New Mood Supplementation in Healthy College Students

NCT05109923
View directory record Official record
Conditions
Mental Health Wellness 1
Interventions
Multi-Ingredient Herbal Supplement, Placebo Supplement
Dietary Supplement
Lead sponsor
University of Idaho
Other
Eligibility
18 Years to 24 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Moscow, Idaho
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 18, 2026, 2:06 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Anti-anxiety Biotics for Breast Cancer Survivors

NCT04784182
View directory record Official record
Conditions
Anxiety Generalized, Breast Cancer Female
Interventions
probiotic plus prebiotic supplement, placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
50 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 23, 2023 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Guayusa Extract on Exercise Training

NCT05820399
View directory record Official record
Conditions
Desire to Exercise, Exercise Training, Physical Exertion
Interventions
Organic Guayusa Extract, Placebo
Dietary Supplement
Lead sponsor
Nathaniel Jenkins
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional

"Night Vision and Carotenoids"

NCT04741763
View directory record Official record
Conditions
Macular Degeneration
Interventions
EyePromise Visual Edge
Dietary Supplement
Lead sponsor
Robert Davis
Other
Eligibility
50 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
North Chicago, Illinois • Oak Lawn, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Nutritional Product on Nutrient Status and Digestive Health

NCT06181214
View directory record Official record
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy, Healthy Aging
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 21, 2024 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Administration on Mood

NCT05343533
View directory record Official record
Conditions
Depression, Sleep, Stress, Anxiety, Mood Disorders
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of a Nutritional Supplement on Skin Health in Generally Healthy Adults

NCT03771807
View directory record Official record
Conditions
Skin Health
Interventions
Beauty From Within, Placebo, Facial cleansing
Dietary Supplement · Other
Lead sponsor
Pharmanex
Industry
Eligibility
40 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 8, 2020 · Synced Sep 18, 2026, 2:06 PM EDT
Terminated Not applicable Interventional

Muscle, Essential Amino Acids, and eXercise in Heart Failure

NCT03312387
View directory record Official record
Conditions
Heart Failure, Diastolic
Interventions
Exercise, Essential Amino Acids, Placebo
Other · Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
60 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Phoenix, Arizona • Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 2, 2019 · Synced Sep 18, 2026, 2:06 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Black Cumin Seed Oil Supplementation on Cortisol, Stress and Mood

NCT06950424
View directory record Official record
Conditions
Stress, Mood
Interventions
black cumin seed oil
Dietary Supplement
Lead sponsor
Shawn Talbott
Industry
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Sep 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Whey Protein Supplementation and Resistance Exercise on Muscle Parameters in Older Adults

NCT00635739
View directory record Official record
Conditions
Mobility Limitation
Interventions
Whey protein, Maltodextrin placebo
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
70 Years to 85 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Sep 18, 2026, 2:06 PM EDT