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Showing 25–48 of 24 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

What to Eat for Lunch? A Pilot Study to Improve Healthier Eating at Work

NCT01674751
View directory record Official record
Conditions
Dietary Habits
Interventions
Pre-ordering program
Other
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 23, 2014 · Synced Jul 21, 2026, 6:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Young Adult Beverage and Health Study

NCT03814551
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 Jul 21, 2026, 6:58 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nutrition for Precision Health, Powered by the All of Us

NCT05701657
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 + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional

Effects of School Gardens on Children's Diet, Nutritional Knowledge, Etc.

NCT02166034
View directory record Official record
Conditions
Dietary Habits
Interventions
garden intervention
Behavioral
Lead sponsor
Cornell University
Other
Eligibility
6 Years to 14 Years
Enrollment
3,531 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
4
States / cities
Little Rock, Arkansas • Osceola, Iowa • Ithaca, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2014 · Synced Jul 21, 2026, 6:58 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

School Lunch Salad Bars and Fruit and Vegetable Consumption

NCT03283033
View directory record Official record
Conditions
Children, Only, Behavior, Eating, School, Obesity, Food Selection, Food Habits, Diet Modification, Adolescent Behavior
Interventions
New salad bar, Marketing
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
6 Years to 18 Years
Enrollment
7,491 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Diet and Weight Loss: Targeting the Bile Acid/Gut Microbiome Axis to Reduce Colorectal Cancer

NCT04753359
View directory record Official record
Conditions
Colorectal Cancer, Diet Habit
Interventions
Med, WL
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
45 Years to 75 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Completed No phase listed Observational

The SEEA (SCI Energy Expenditure and Activity) Study

NCT04748835
View directory record Official record
Conditions
Spinal Cord Injuries, Obesity, Metabolic Syndrome, Cardiovascular Diseases, Diet Habit
Interventions
Not listed
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
42 participants
Timeline
2018 – 2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Daily Habits & Consumer Preferences Study

NCT05402137
View directory record Official record
Conditions
Obesity
Interventions
Weight stigma intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Not yet recruiting Not applicable Interventional

Lifewise Preventive Video Education in Primary Care

NCT06730737
View directory record Official record
Conditions
Prevention Harmful Effects, Health Maintenance, Preventive Health Care, Dietary Habits
Interventions
Video preventive education
Other
Lead sponsor
Trinity Health-Livonia
Other
Eligibility
18 Years to 80 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Livonia, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Dietary Habits on Metabolic Health

NCT02298790
View directory record Official record
Conditions
Overweight, Obesity, Prediabetes, Meals
Interventions
Meal schedule
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
20 Years to 60 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 3, 2020 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Results available

Evaluation of an Artificial Intelligence-Assisted, Image-Based Dietary Assessment Tool in the Framingham Heart Study

NCT06455111
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 Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preventing Early Childhood Obesity, Part 1: Long-term Follow-up

NCT05424471
View directory record Official record
Conditions
Obesity, Water; Lack of, Childhood Obesity, Feeding Behavior, Mother-Child Relations, Dietary Habits
Interventions
Family Spirit Nurture (FSN), Control Group - Vehicle Safety
Behavioral · Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
13 Years and older · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Shiprock, New Mexico
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Results available

Tanglewood Trail Walking Program in Rural Kentucky 2017

NCT03495648
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
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 16, 2021 · Synced Jul 21, 2026, 6:58 AM EDT
Terminated Not applicable Interventional

Continuous Glucose Monitoring and Hass Avocado Trial ("CHAT")

NCT05293340
View directory record Official record
Conditions
Dietary Habits, Diabetes Mellitus, Type 2
Interventions
Avocado Vouchers
Dietary Supplement
Lead sponsor
Sansum Diabetes Research Institute
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Santa Barbara, California
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Jul 21, 2026, 6:58 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 Jul 21, 2026, 6:58 AM EDT
Active, not recruiting Not applicable Interventional

Plant-based Diet for Kidney Transplant Recipients

NCT06186843
View directory record Official record
Conditions
Kidney Disease, Chronic, Transplant Complication, Hypertension, Diabetes Mellitus, Metabolic Syndrome, Inflammation, Kidney Transplant Failure, Dietary Habits
Interventions
Plant-based diet
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Study of Household Purchasing Patterns, Eating and Recreation

NCT02073643
View directory record Official record
Conditions
Dietary Habits, Adiposity, Blood Pressure
Interventions
Not listed
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 24, 2019 · Synced Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Food Swaps to Improve the Healthfulness and Reduce the Carbon Footprint of Grocery Purchases

NCT06648226
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 Jun 23, 2026 · Synced Jul 21, 2026, 6:58 AM EDT
Not listed Not applicable Interventional

Towards Understanding the Relationship Between Meals and Blood Biomarkers

NCT05295706
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Counterfactual Intervention
Behavioral
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Jul 21, 2026, 6:58 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

iSIPsmarter: A Pilot RCT to Evaluate a Web-based Behavioral Intervention to Reduce Sugary Beverages Among Black Adults

NCT06184737
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
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Jul 21, 2026, 6:58 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Daily Blood Glucose Trends in Patients at Risk for Diabetes

NCT06000735
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 Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Front-of-Package Nutrition Labels

NCT06516627
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 Jul 21, 2026, 6:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sugary Drinks Counter-marketing Messages

NCT05953194
View directory record Official record
Conditions
Obesity, Weight Prejudice, Weight Gain, Dietary Habits
Interventions
Exposure to counter-marketing messages, Exposure to traditional health messages, Exposure to control (neutral) messages
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
2,184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Feb 27, 2024 · Synced Jul 21, 2026, 6:58 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Can Food Timing Reduce Your Diabetes Risk?

NCT05862818
View directory record Official record
Conditions
Dietary Habits
Interventions
Day shift protocol - Diet order A-B, Day shift protocol - Diet order B-A, Night shift protocol - Diet order A-B, Night shift protocol - Diet order B-A
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Jul 21, 2026, 6:58 AM EDT