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

Worksite Nutrition Study

NCT00481897
View directory record Official record
Conditions
Overweight, Type 2 Diabetes
Interventions
low-fat, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 6, 2012 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Berberine Supplementation, Sprint Interval Training, and Immune Function Study

NCT07480018
View directory record Official record
Conditions
Berberine, Sprint Training, Wellbeing, Anaerobic Power, Inflammation Biomarkers, Monocyte Function
Interventions
Berberine, Placebo, Sprint Interval Training
Dietary Supplement · Other
Lead sponsor
University of Northern Colorado
Other
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Greeley, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of an Oral Hair Supplement to Improve Hair Strength and Support Growth in Women and Men

NCT06362941
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol Women's Hair Growth Supplemnt, Nutrafol Women's Balance Hair Growth Supplement, Nutrafol Women's Vegan Hair Growth Supplement, Nutrafol Women's Postpartum Hair Growth Supplement, Nutrafol Men's Hair Growth Supplement
Dietary Supplement
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Sep 29, 2026, 3:31 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Pomegranate Dietary Supplements in AUD and ALD

NCT07678567
View directory record Official record
Conditions
Alcohol Use Disorder, Alcohol-associated Liver Disease, Alcoholic Cirrhosis, Healthy
Interventions
Pomegranate Dietary Ssupplement
Dietary Supplement
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2032
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 29, 2026, 3:31 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Evaluate the Efficacy of Four Supplements on Improving Readiness for Intimacy

NCT05862519
View directory record Official record
Conditions
Libido, Intimacy, Gastrointestinal Issues
Interventions
Reset, Stay Ready Fiber, Libido, Testosterone supplement
Dietary Supplement
Lead sponsor
906 CMVI Holdings
Industry
Eligibility
18 Years to 44 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 16, 2023 · Synced Sep 29, 2026, 3:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Impact of a Plant-Based Diet on Indices of Cardiovascular Health in African Americans

NCT05344287
View directory record Official record
Conditions
Cardiovascular Diseases, Hypertension, Diet, Healthy
Interventions
Typical American Diet, Plant-Based Diet
Other
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 40 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional

A Nutrition Intervention for Arthritis -3 (WCCR-ARTH3)

NCT03417648
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Plant-based diet, Supplement
Other
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 90 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 3, 2019 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Results available

Low Fat Vegan or American Heart Association Diets & Cardiovascular Risk in Obese 9-18 y.o. With Elevated Cholesterol

NCT01817491
View directory record Official record
Conditions
Cardiovascular Disease, Hypercholesterolemia, Obesity, Fatty Liver
Interventions
American Heart Association Diet, Reduced Fat Vegan Diet
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
9 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional

Effects of a 4-week Raw, Plant-based Diet on Anthropometric and Cardiovascular Risk Factors

NCT03134235
View directory record Official record
Conditions
Hypertension, Elevated Cholesterol, Overweight and Obesity
Interventions
Dietary Intervention
Other
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2017 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Differences in Eating Frequency Between Vegan and Omnivorous Diets

NCT02417480
View directory record Official record
Conditions
Eating Behavior
Interventions
Vegan diet, Follow habitual, usual diet
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 29, 2026, 3:31 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Facilitated Vegan Diet on Cardiometabolic Endpoints and Trimethylamine N-oxide

NCT05071196
View directory record Official record
Conditions
Cardiometabolic Risk Factors
Interventions
Facilitated Vegan Diet, Omnivorous Diet
Other
Lead sponsor
David Grant U.S. Air Force Medical Center
Federal
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Travis Air Force Base, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hospital Workplace Nutrition Study

NCT04222894
View directory record Official record
Conditions
Overweight, Type2 Diabetes
Interventions
Plant-based diet, Control Diet
Other
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 29, 2026, 3:31 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Nutritious Eating With Soul Dissemination and Implementation

NCT05659966
View directory record Official record
Conditions
Nutrition, Healthy, Eating Behavior
Interventions
Plant-based diet, Voucher only
Behavioral · Other
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
228 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritious Eating With Soul (The NEW Soul Study)

NCT03354377
View directory record Official record
Conditions
Cardiovascular Disease Risk Factors, Overweight and Obesity
Interventions
Dietary Intervention Meetings, Physical Activity, Podcasts/Mailings
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Athlete Whey Protein Sensitivity: Prevalence and Performance

NCT05482997
View directory record Official record
Conditions
Food Intolerance
Interventions
Whey Protein Concentrate, Pea Protein Isolate, Rice Protein Concentrate, Hemp Protein
Dietary Supplement
Lead sponsor
University of the Incarnate Word
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutraceutical Supplement With Vegan Botanicals in Females With Self-Perceived Thinning Hair

NCT05332743
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol Vegan Women's Hair Supplement
Dietary Supplement
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Manhattan Beach, California • Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional

A Nutritional Intervention for Diabetic Neuropathy

NCT01690962
View directory record Official record
Conditions
Diabetic Neuropathy
Interventions
Vegan diet and vitamin B12 supplement, Vitamin B12 supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 3, 2014 · Synced Sep 29, 2026, 3:31 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 Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional

Multicenter Worksite Nutrition Study

NCT01224548
View directory record Official record
Conditions
Diabetes, Overweight
Interventions
vegan instruction and food accessibility, control
Other
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
10
States / cities
Tucson, Arizona • San Diego, California • Lakeland, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Sep 29, 2026, 3:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Adhering to Dietary Approaches for Personal Taste (ADAPT)

NCT03226938
View directory record Official record
Conditions
Dietary Habits
Interventions
Not listed
Lead sponsor
Tufts University
Other
Eligibility
18 Years and older
Enrollment
3,001 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 14, 2022 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional

A Nutritional Intervention for Diabetic Neuropathy (WCCR-DN2)

NCT01953757
View directory record Official record
Conditions
Diabetic Neuropathy
Interventions
Vegan diet and vitamin B12 supplement, Vitamin B12 supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 26, 2015 · Synced Sep 29, 2026, 3:31 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The CARING Study: Creating and Restoring Health Through Nutrition Guidance

NCT05795439
View directory record Official record
Conditions
Type2diabetes, Type 2 Diabetes Treated With Insulin
Interventions
Low-fat, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Womens Study to Alleviate Vasomotor Symptoms

NCT04587154
View directory record Official record
Conditions
Hot Flashes
Interventions
low-fat vegan diet with 1/2 cup soybeans daily
Other
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
40 Years to 60 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Sep 29, 2026, 3:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

New DIETs: New Dietary Interventions Enhancing the Treatment for Weight Loss

NCT01742572
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Diet
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 29, 2026, 3:31 AM EDT