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Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Carrot Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Vegetable Dose Response Study: Effects of Consumption on Inflammation and Oxidative Stress

NCT01454674
View directory record Official record
Conditions
Chronic Disease
Interventions
2, 5 & 10 Vegetable doses
Other
Lead sponsor
University of Arizona
Other
Eligibility
50 Years to 75 Years · Female only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 18, 2011 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Test of Reactive Carrot Incentives in a Practice Quit Environment With Contingency Management Incentives

NCT05072301
View directory record Official record
Conditions
Smoking Cessation
Interventions
Contingency Management, Control
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Novel Metabolites of Beta-Carotene and Lycopene

NCT02550483
View directory record Official record
Conditions
Healthy
Interventions
Base diet + high beta-carotene tomato juice, Base diet + high lycopene tomato juice, Base diet + placebo beverage
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
21 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Beltsville, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

First Complementary Foods and the Infant Gastrointestinal Microbiota

NCT05492253
View directory record Official record
Conditions
Healthy Participants, Infants, Gastrointestinal Microbiota
Interventions
Infant fruit, Infant vegetable, Infant meat, Infant grain
Other
Lead sponsor
University of Delaware
Other
Eligibility
5 Months to 7 Months
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced Sep 3, 2026, 10:08 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Produce Prescriptions and Veggie Meter Scores for College Food Security

NCT07511699
View directory record Official record
Conditions
Food Insecurity, Carotenoid Status, Produce Prescription
Interventions
Produce boxes
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional

Food Rx + Community Health Worker

NCT06476990
View directory record Official record
Conditions
Diabetes Type 2
Interventions
Healthy food box
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fruit and Vegetable Biomarker Discovery

NCT05621863
View directory record Official record
Conditions
Biomarkers
Interventions
Aim 1 Meal Challenge 1, Aim 1 Meal Challenge 2, Aim 1 Meal Challenge 3, Aim 2 Typical American Diet, Aim 2 Typical American Diet Plus Test Foods, Aim 2 Dietary Guidelines for Americans Diet Plus Test Foods
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Nitrate-rich Fruit and Vegetable Supplement on Blood Pressure

NCT03486145
View directory record Official record
Conditions
High Blood Pressure, Flow Mediated Dilation
Interventions
fruit and vegetable juice supplement, Placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 40 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 2, 2018 · Synced Sep 3, 2026, 10:08 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Mechanisms of Cognitive Change

NCT04103775
View directory record Official record
Conditions
Psychosis
Interventions
Cognitive Remediation, Active Control
Behavioral
Lead sponsor
Colorado State University
Other
Eligibility
15 Years to 100 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Watching a Television Show on the Liking of Snack Foods

NCT01694043
View directory record Official record
Conditions
Measure Grams and Kcals of Snack Foods Consumed in Each Condition
Interventions
Healthy Foods, Unhealthy Snack Foods
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Plant Pigments for Human Health: Impact of Lycopene and Anthocyanins on Bioefficacy of Provitamin A Carotenoids From Carrots

NCT05319548
View directory record Official record
Conditions
Healthy
Interventions
Purple-Red Carrot Juice, Red Carrot Juice, Purple Carrot Juice
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Provitamin A Absorption and Conversion With Avocados

NCT01432210
View directory record Official record
Conditions
Healthy
Interventions
Post-prandial Feeding Study
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Analysis of MicroBial Metabolites After Eating Refined Food

NCT04308473
View directory record Official record
Conditions
Dietary Habits
Interventions
Ultra-processed Food Meal, Whole Food Meal
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparison of Carotenoid Bioavailability From Fresh Papaya, Tomato and Carrot

NCT01748916
View directory record Official record
Conditions
Focus of Study: Carotenoid Absorption
Interventions
Papaya, Carrot, Tomato
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 19, 2025 · Synced Sep 3, 2026, 10:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Fermented Vegetables on Gut Microflora and Inflammation in Women

NCT03407794
View directory record Official record
Conditions
Inflammation, Women's Health, Gastrointestinal Microbiome
Interventions
Fermented vegetable, Non-fermented vegetable
Other
Lead sponsor
University of North Florida
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Sep 3, 2026, 10:08 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Iron Bioavailability From Cereal-based Foods

NCT05061290
View directory record Official record
Conditions
Iron Bioavailability
Interventions
Control Porridge, Reference Porridge A, Test Porridge B, Test Porridge C, Test Porridge D
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 3, 2026, 10:08 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

An Investigation of a Multi-Function Skincare Product to Improve Aging, Eczema, and Acne Outcomes

NCT05873933
View directory record Official record
Conditions
Acne, Eczema, Skin Aging
Interventions
Hemptress Oil
Other
Lead sponsor
Hemptress
Industry
Eligibility
21 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 3, 2026, 10:08 PM EDT