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ClinicalTrials.gov public records Last synced May 22, 2026, 12:13 AM EDT

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Showing 1–24 of 151 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Diet Habit Clear all
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep Quantity, Sleep Efficiency
Interventions
Accelerometer
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
15 Years to 18 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
4
States / cities
Barrington, Illinois • Belton, Texas • McGregor, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2021 · Synced May 22, 2026, 12:13 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diabetes, Heart Diseases, Diet Habit, Diet Modification, Healthy, Obesity, Metabolism, Microbial Colonization
Interventions
Dietary Intervention
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
18 Years and older
Enrollment
250,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced May 22, 2026, 12:13 AM EDT
Not listed No phase listed Observational
View directory record Official record
Conditions
Diet Habit, Cognitive Function
Interventions
No Intervention/Observational Study
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
4 Years to 5 Years
Enrollment
104 participants
Timeline
2016 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Diet Habit, Sugar-Sweetened Beverages
Interventions
iSIPsmarter, Patient Education (PE)
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 110 Years
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Dietary Habits
Interventions
Coached
Behavioral
Lead sponsor
Florida Atlantic University
Other
Eligibility
45 Years to 64 Years · Female only
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boca Raton, Florida
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced May 22, 2026, 12:13 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Nutrition, Health, Dietary Habits
Interventions
Diet A, Diet B, Diet C
Other
Lead sponsor
RTI International
Other
Eligibility
18 Years and older
Enrollment
8,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
14
States / cities
Birmingham, Alabama • Davis, California • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Dietary Habits, Food Preference
Interventions
Not listed
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 35 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2017 · Synced May 22, 2026, 12:13 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diet Habit, Obesity
Interventions
Order 1, Order 2, Order 3, Order 4
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 35 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep, Circadian Rhythm Disorders, Dietary Habits
Interventions
Sleep Extension (Early), Sleep Extension (Late)
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
14 Years to 18 Years
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Dietary Habits
Interventions
walking group led by a community organizer
Behavioral
Lead sponsor
Dawn Brewer
Other
Eligibility
18 Years to 65 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Choice Behavior, Dietary Habits
Interventions
Default Veg, Default Meat
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Dietary Habits, Physical Activity
Interventions
Not listed
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 48 Years · Female only
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2022
U.S. locations
3
States / cities
Ithaca, New York • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Food Selection, Nutrition, Food Preferences, Dietary Habits, Sustainability, Healthy Diet
Interventions
Health swaps, Climate swaps, Combined health and climate swaps, Control
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
1,201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2025 · Synced May 22, 2026, 12:13 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Dietary Habits, Childhood Obesity, Food Selection, Feeding Behavior
Interventions
BEST study - Nutrition education only, BEST study - Nutrition education and feeding practices, BEST study - Nutrition education, feeding practices, and Food Rx
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 64 Years
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Dietary Habits, Coronary Artery Disease, Lifestyle
Interventions
Survey
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diet, Healthy, Diet Habit, Obesity, Blood Pressure, Psychological
Interventions
Culturally tailored healthy eating advice, Standard healthy eating advice
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
25 Years to 65 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Nutrition, Food Selection, Food Preferences, Dietary Habits, Healthy Diet
Interventions
Positive Labels, Spectrum Labels, FDA High In Labels, FDA Traffic Light Labels
Behavioral
Lead sponsor
Harvard Pilgrim Health Care
Other
Eligibility
18 Years and older
Enrollment
5,638 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 15, 2024 · Synced May 22, 2026, 12:13 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diet Habit
Interventions
Personalized Diet Information
Behavioral
Lead sponsor
Duke University
Other
Eligibility
Up to 12 Months
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Abdominal Pain, Irritable Bowel Syndrome, IBS
Interventions
Dietary intervention, Irritable Bowel Syndrome eating awareness training
Dietary Supplement · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 11, 2018 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Dietary Habits
Interventions
walking group led by a community organizer
Behavioral
Lead sponsor
Dawn Brewer
Other
Eligibility
18 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Dietary Habits
Interventions
Keenoa, ASA24
Other
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced May 22, 2026, 12:13 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Stress, Blood Sugar; High, Cholesterol, Elevated, Diet Habit
Interventions
7-Day Continuous Glucose Monitoring with Abbott Freestyle Libre 2
Device
Lead sponsor
Karol E. Watson, MD
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Pre-diabetes, Diet Habit, Diet, Healthy
Interventions
Not listed
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
Santa Barbara, California • College Station, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Diet Habit
Interventions
Signage
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
911 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 26, 2019 · Synced May 22, 2026, 12:13 AM EDT