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Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 2 Interventional

PRebiotic to IMprovE Calcium Absorption

NCT03272542
View directory record Official record
Conditions
Obesity
Interventions
Prebiotic: soluble corn fiber, Placebo: maltodextrin
Dietary Supplement
Lead sponsor
San Francisco Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 75 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 21, 2020 · Synced Sep 7, 2026, 6:34 PM 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 7, 2026, 6:34 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Brown Seaweed as a Breast Cancer Preventive

NCT01204957
View directory record Official record
Conditions
Breast Cancer
Interventions
Seaweed and Soy Protein, Placebo and Soy Protein
Dietary Supplement
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 1999
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2015 · Synced Sep 7, 2026, 6:34 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Advancing Precision Nutrition: Wearable Technology for Noninvasive Insulin Monitoring

NCT07254364
View directory record Official record
Conditions
Insulin Response, Type 1 Diabetes (T1D)
Interventions
Standardized meal 1, Standardized meal 2, Standardized meal 3, Standardized meal 4, Standardized meal 5, Standardized meal 6
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 90 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Phage 3Determination of Phage/Probiotic Synergistic Effects on Gastrointestinal Health

NCT05750433
View directory record Official record
Conditions
Gastrointestinal Dysfunction
Interventions
PreforPro+B. subtilis DE111 probiotics, Placebo, B. subtilis DE111
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Protein and Alkali Supplementation on Skeletal Muscle in Older Adults

NCT04048616
View directory record Official record
Conditions
Age-Related Sarcopenia, Muscle Loss
Interventions
whey protein isolate, potassium bicarbonate (KHCO3), microcrystalline cellulose, maltodextrin powder
Dietary Supplement · Other
Lead sponsor
Tufts University
Other
Eligibility
65 Years and older
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2025 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Whey Protein Supplements on Markers of Exercise-induced Muscle Damage in Resistance-trained Individuals

NCT05100459
View directory record Official record
Conditions
Muscle Damage, Muscle Soreness
Interventions
Pasture-raised whey protein, Conventional whey protein, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Sep 7, 2026, 6:34 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Cardiac and Vascular Responses to Creatine Supplementation in Elderly Men

NCT05329480
View directory record Official record
Conditions
Cardiac Function and Hemodynamics
Interventions
Creatine Monohydrate, Maltodextrin
Dietary Supplement
Lead sponsor
Radford University
Other
Eligibility
55 Years to 80 Years · Male only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Examining the Relationship Between Acute Meal Intake and Inflammation in Children

NCT03597542
View directory record Official record
Conditions
Obesity, Inflammation
Interventions
Eggs and Carbohydrates
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
7 Years to 17 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 30, 2018 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional

Nutritional Therapy for Autonomic Dysfunction in Elderly Heart Failure Patients

NCT06256276
View directory record Official record
Conditions
Heart Failure
Interventions
Whey protein powder and L-carnitine, Maltodextrin placebo powder and Psyllium Husk capsules
Dietary Supplement
Lead sponsor
University of Arkansas
Other
Eligibility
60 Years to 90 Years · Female only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Sep 7, 2026, 6:34 PM EDT
Active, not recruiting Not applicable Interventional

Prebiotic Treatment in People With Schizophrenia

NCT05527210
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Prebiotic, Placebo Prebiotic
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 7, 2026, 6:34 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Gut Microbiota-Mediated Inflammatory Interactions Between AUD and HIV Infection

NCT06139224
View directory record Official record
Conditions
Alcohol Use Disorder, Human Immunodeficiency Virus
Interventions
4 week prebiotic consumption, 4 week placebo consumption
Dietary Supplement · Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 7, 2026, 6:34 PM EDT
Withdrawn Phase 4 Interventional

Creatine Monohydrate Use for Preventing Altitude Induced Depression

NCT03433651
View directory record Official record
Conditions
Depression
Interventions
Creatine monohydrate, Placebo
Drug
Lead sponsor
Mike O'Callaghan Military Hospital
Federal
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Turmeric and Turmeric-containing Tablets and Sebum Production

NCT03065504
View directory record Official record
Conditions
Skin Inflammation
Interventions
Turmeric, Turmeric-containing combination tablet, Placebo tablets
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Whey Protein Supplementation on Vascular and Cognitive Function in Older Adults

NCT01956994
View directory record Official record
Conditions
Blood Pressure
Interventions
Whey protein supplement, Carbohydrate supplement
Dietary Supplement
Lead sponsor
Syracuse University
Other
Eligibility
60 Years to 85 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Oct 3, 2017 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Phase 2 Interventional

Inositol Supplementation to Treat PCOS (INSUPP-PCOS)

NCT03864068
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Anovulation, Hyperandrogenism, Insulin Resistance, Glucose Intolerance, Metabolic Complication
Interventions
Placebo, Inositol
Other · Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Hershey, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Dietary Supplement on Exercise Performance in Healthy Older Adults"

NCT01073332
View directory record Official record
Conditions
Excessive Physical Exercise, Unspecified
Interventions
Arginine antioxidant supplements, Placebo
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Phase 3 Interventional

Evaluation of the Efficacy, Durability, Safety, and Tolerability of RP-G28 in Patients With Lactose Intolerance

NCT03597516
View directory record Official record
Conditions
Lactose Intolerance
Interventions
RP-G28, Placebos
Drug
Lead sponsor
Ritter Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
557 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
35
States / cities
Birmingham, Alabama • Chula Vista, California • Huntington Park, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2019 · Synced Sep 7, 2026, 6:34 PM EDT
Not yet recruiting Phase 2 Interventional

Inulin Supplementation for Reducing Inflammation and Knee Pain in Older Adults With Osteoarthritis

NCT07189585
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
inulin, Maltodextrin (Placebo)
Drug
Lead sponsor
Yale University
Other
Eligibility
40 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Broccoli Seed Extract and Skin Health

NCT05745636
View directory record Official record
Conditions
Skin Inflammation
Interventions
Broccoli, mustard, vitamin C, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
25 Years to 57 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 7, 2026, 6:34 PM EDT
Active, not recruiting Phase 2 Interventional

Resistant Maltodextrin for Gut Microbiome in Parkinson's Disease: Safety and Tolerability Study

NCT03667404
View directory record Official record
Conditions
Parkinson Disease, Intestinal Bacteria Flora Disturbance, Dietary Modification
Interventions
Resistant maltodextrin, maltodextrin
Dietary Supplement
Lead sponsor
Northwestern University
Other
Eligibility
60 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 7, 2026, 6:34 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 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tart Cherry Supplementation & Gut Microbiome and Inflammation

NCT04467372
View directory record Official record
Conditions
Inflammation, Glucose Regulation, Sleep
Interventions
Tart cherry juice concentrate, Juice placebo, Freeze dried tart cherry powder, Capsule placebo
Dietary Supplement
Lead sponsor
Ohio University
Other
Eligibility
18 Years to 55 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 8, 2021 · Synced Sep 7, 2026, 6:34 PM EDT
Completed Not applicable Interventional

Treating IBD With Inulin

NCT03653481
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
Oligofructose-enriched Inulin OI, Maltodextrin
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 21 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Sep 7, 2026, 6:34 PM EDT