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ClinicalTrials.gov public records Last synced Oct 17, 2026, 2:09 PM EDT

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Showing 1–24 of 81 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Habitual diet Clear all
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Biomarker-estimated Flavanol Intake in Davis (FID)

NCT06086145
View directory record Official record
Conditions
Healthy, Diet, Adults
Interventions
No intervention
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 75 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Zinc and Iron From a Whey-based Protein Supplement Consumed With a Habitual Plant-based Diet

NCT02208622
View directory record Official record
Conditions
Nutritional Deficiency
Interventions
Study 1: Whey Supplement Day 1, Study 1: Whey Supplement Day 2, Study 2: Whey Supplement
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
2 Years to 3 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 5, 2019 · Synced Oct 17, 2026, 2:09 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Health & Culture Project: Cultural Factors Underlying Obesity in African-American Adolescents

NCT02938663
View directory record Official record
Conditions
Pediatric Obesity
Interventions
Questionnaires and Measurements
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
12 Years to 18 Years
Enrollment
273 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 19, 2016 · Synced Oct 17, 2026, 2:09 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Supplemental Fiber on Gut and Vascular Health Related in Obesity Phenotypes

NCT07095426
View directory record Official record
Conditions
Metabolic Syndrome, Healthy Participants, Metabolically Healthy Obesity, Metabolically Abnormal Obesity
Interventions
inulin
Dietary Supplement
Lead sponsor
Ball State University
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Muncie, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 31, 2025 · Synced Oct 17, 2026, 2:09 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Adaptions and Resiliency to Multi-Stressor OpeRations

NCT06455969
View directory record Official record
Conditions
Musculoskeletal Injury, Hypogonadism, Hormonal Contraception
Interventions
Goserelin 3.6 MG, Multi-Stressor Training, Testosterone gel (AndroGel 5g), Testosterone gel (AndroGel 1.25g)
Drug · Other
Lead sponsor
Bradley Nindl
Other
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Yogurt and GI Health

NCT05931471
View directory record Official record
Conditions
Yogurt Intake, Gastrointestinal Immune Function, Gut Microbiome, Gut Health
Interventions
Yogurt Intervention
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
50 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 17, 2026, 2:09 PM EDT
Recruiting Not applicable Interventional

Optimization of Chrononutrition to Reduce the Risk of Disease in Shift Workers

NCT06891352
View directory record Official record
Conditions
Night Shift Work, Time Restricted Eating, Overweight, Obesity
Interventions
Dietary Monitoring, Time-Restricted Eating (TRE), Time-Restricted Eating with a Low-Glycemic Snack (TRE-LGS)
Behavioral
Lead sponsor
Salk Institute for Biological Studies
Other
Eligibility
18 Years to 70 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional

The Influence of Tai Chi Practice on Blood Pressure and Brain Health Among Older Adults With Hypertension (ACTION)

NCT04384263
View directory record Official record
Conditions
Hypertension, Cognitive Decline
Interventions
Tai Chi
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
55 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Results available

Dietary Treatment Study of Pediatric NAFLD

NCT02513121
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease
Interventions
Dietary modification
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
11 Years to 16 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
2
States / cities
San Diego, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Microbiome and Resilience to Sleep and Circadian Disruption

NCT03747367
View directory record Official record
Conditions
Sleep Deprivation, Circadian Dysregulation, Stress
Interventions
Insufficient Sleep, Prebiotic, Placebo
Behavioral · Dietary Supplement
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 45 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional

The Health Effects of Blueberry Anthocyanins in Metabolic Syndrome (the CIRCLES-study)

NCT02035592
View directory record Official record
Conditions
Insulin Resistance, Metabolic Syndrome X
Interventions
Full dose blueberry, Half dose blueberry, Control
Other
Lead sponsor
University of East Anglia
Other
Eligibility
50 Years to 74 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 29, 2017 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Time Restricted Feeding and Metabolic Rhythms

NCT04009239
View directory record Official record
Conditions
Obesity, Diabetes
Interventions
Time Restricted Feeding
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
20 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Oct 17, 2026, 2:09 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

The Effects of a High Protein Breakfast on Appetite and Sleep in Young Adults

NCT03031132
View directory record Official record
Conditions
Appetite and General Nutritional Disorders
Interventions
HP-Beverage Breakfast, HP-Solid Breakfast, Breakfast Skipping
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
20 Years to 32 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 19, 2017 · Synced Oct 17, 2026, 2:09 PM EDT
Active, not recruiting Not applicable Interventional

The Effects of Fresh Mango Consumption on Cardiometabolic Outcomes in Free-living Individuals With Prediabetes

NCT06159543
View directory record Official record
Conditions
Hyperglycemia, Dyslipidemias, Insulin Resistance, Inflammation, Oxidative Stress
Interventions
Mango
Behavioral
Lead sponsor
Loma Linda University
Other
Eligibility
40 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Inherited and Environmental Risks Acting on Body Weight

NCT07430852
View directory record Official record
Conditions
Genetics, Obesity
Interventions
Diet modification
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
20 Years to 45 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Eating Behaviors Among Weight-Discordant Siblings

NCT01598389
View directory record Official record
Conditions
Obesity
Interventions
Feeding study
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
5 Years to 12 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 15, 2012 · Synced Oct 17, 2026, 2:09 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effect of Nutrient Sequencing in Healthy Adults

NCT07873437
View directory record Official record
Conditions
Pre Diabetes
Interventions
Finger Prick- Blood Glucose, Whole Blood Draw, Diet History Questionnaire, Physical Activity Assessment
Procedure · Behavioral
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 35 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Low-calorie Diet in Isolated Impaired Fasting Glucose

NCT06451055
View directory record Official record
Conditions
Isolated Impaired Fasting Glucose
Interventions
Low-calorie diet, Routine dietary and physical activity habits
Behavioral
Lead sponsor
Emory University
Other
Eligibility
35 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Walnut and Immunity Study

NCT05915390
View directory record Official record
Conditions
Immune Response, Upper Respiratory Tract Infection
Interventions
walnuts, Habitual diet
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
55 Years to 75 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Oct 17, 2026, 2:09 PM EDT
Completed Not applicable Interventional

Time Restricted EATing (TREAT) Pilot Study

NCT03956290
View directory record Official record
Conditions
Overweight and Obesity, Pre Diabetes
Interventions
TREAT pilot intervention
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
45 Years to 73 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Oct 17, 2026, 2:09 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Immunomodulatory Effects of Fasting in Healthy Adults

NCT05104502
View directory record Official record
Conditions
Fasting
Interventions
Dietary Fasting
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
20 Years to 40 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 17, 2026, 2:09 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Metabolic Adaptations to High-fat Diet

NCT06537401
View directory record Official record
Conditions
Adiposity, Insulin Sensitivity, Impaired Glucose Tolerance, Metabolic Disturbance
Interventions
Hypercaloric, High Fat Diet
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
20 Years to 45 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 17, 2026, 2:09 PM EDT
Recruiting Not applicable Interventional

Reducing Cardiovascular Risks: The Role of Alcohol Use

NCT07783061
View directory record Official record
Conditions
Alcohol Drinking, Drinking Behavior, At-risk Drinking, Cardiovascular Risk Factor, High Blood Pressure
Interventions
Alcohol Abstinence, Control arm
Behavioral · Other
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
26 Years to 49 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 17, 2026, 2:09 PM 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 18, 2019 · Synced Oct 17, 2026, 2:09 PM EDT