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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Dietary Intake Clear all
Completed No phase listed Observational Accepts healthy volunteers

The Effect of Nutrient Intake on the Microbiome, Weight, and Glucoregulation (NI-MWG)

NCT03076424
View directory record Official record
Conditions
Obesity, Type2 Diabetes
Interventions
no intervention used
Other
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glycemic Index and Brain Function

NCT01064778
View directory record Official record
Conditions
Obesity
Interventions
Low GI, High GI
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 1, 2012 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Dietary Salt Intake and Vascular Function

NCT00590512
View directory record Official record
Conditions
Healthy
Interventions
High sodium, Low sodium
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 28, 2013 · Synced Jul 22, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional

Assessing User Satisfaction and Adherence to an Abbreviated Dietary Tracking App (MySnackTracker) Versus Full-intake Dietary Monitoring

NCT06919471
View directory record Official record
Conditions
Dietary Monitoring
Interventions
Fitbit, MySnackTracker App
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Three Different Dietary Messages on Dietary Intake and Health in Families

NCT01510678
View directory record Official record
Conditions
Obesity
Interventions
Increase Fruits and Vegetables, Decrease Snack Foods, Increase Fruits and Vegetables and Decrease Snack Foods
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
6 Years to 12 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2025
U.S. locations
2
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Tanglewood Trail Walking Program in Rural Kentucky 2019

NCT05002972
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 Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Predicting Adherence to a Heart-Healthy Diet in Lean and Obese Individuals

NCT01862796
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Underfeeding diet, Weight maintaining diet
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 14, 2019 · Synced Jul 22, 2026, 2:06 AM EDT
Completed No phase listed Observational

Dietary Impact on Continuous Glucose Monitoring

NCT05845827
View directory record Official record
Conditions
Glucose Metabolism Disorders, Dietary Habits, Pediatric ALL, Adult ALL
Interventions
Not listed
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
14 Years to 22 Years
Enrollment
30 participants
Timeline
2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Jul 22, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Tasting Plant Forward Meals

NCT07202988
View directory record Official record
Conditions
Dietary Exposure
Interventions
vegetable combination 1, vegetable combination 2, vegetable combination 3, vegetable combination 4, vegetable combination 5
Other
Lead sponsor
Sara Maksi
Other
Eligibility
18 Years to 25 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Body's Response to Changes in Dietary Protein and Meal-Frequency In Men

NCT01171716
View directory record Official record
Conditions
Low Protein Dietary Intake, High Protein Dietary Intake
Interventions
Meal Patterning
Other
Lead sponsor
Purdue University
Other
Eligibility
21 Years and older · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 16, 2013 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effects of Leptin Treatment on Weight Loss

NCT00050791
View directory record Official record
Conditions
Obesity
Interventions
Leptin, Very Low Calorie Diet
Drug · Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
20 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 18, 2010 · Synced Jul 22, 2026, 2:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Food Talk: A New App for Daily Food Monitoring

NCT03869658
View directory record Official record
Conditions
Dietary Intake
Interventions
COCO application
Behavioral
Lead sponsor
Tufts University
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Jul 22, 2026, 2:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Milk Fat Intake and Metabolic Health Markers

NCT02659748
View directory record Official record
Conditions
Insulin Sensitivity, Type 2 Diabetes
Interventions
Milk Fat, Control Fat
Dietary Supplement
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Milk Intervention Study for Brain Aging

NCT02957422
View directory record Official record
Conditions
Brain Aging
Interventions
1% Milk, Control
Dietary Supplement
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
60 Years to 89 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The SLeeping and Intake Methods Taught to Infants and Mothers Early in Life (SLIMTIME) Project

NCT00359242
View directory record Official record
Conditions
Weight Gain, Obesity
Interventions
Infant Sleeping and Soothing, Repeated Food Exposure
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
1 Day to 12 Months
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 27, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Protein on Musculoskeletal Health During Calorie Deficiency

NCT01292395
View directory record Official record
Conditions
Weight Loss, Muscle Loss, Bone Loss
Interventions
Dietary Protein Intake
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 42 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 13, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exercise Training and Time-restricted Feeding in Overweight and Obese Adults

NCT03823872
View directory record Official record
Conditions
Overweight and Obesity, Weight Loss
Interventions
Time restricted feeding, Normal feeding
Other
Lead sponsor
Kyle Hackney
Other
Eligibility
35 Years to 60 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Jul 22, 2026, 2:06 AM EDT
Completed No phase listed Observational

Pregnancy Eating Attributes Study

NCT02217462
View directory record Official record
Conditions
Pregnancy
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 44 Years · Female only
Enrollment
458 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 27, 2020 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Benefits of Consuming Hummus as an Afternoon Snack

NCT03595462
View directory record Official record
Conditions
Appetitive Behavior
Interventions
Snack, No Snack
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 1, 2019 · Synced Jul 22, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Slowly Digestible Carbohydrates for GLP-1 Secretion

NCT07572513
View directory record Official record
Conditions
Blood Glucose, GLP-1, Satiety, Second Meal Intake, Healthy Participant Study
Interventions
Maltodextrin (Placebo), Raw Corn Starch
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Black Tea Intake on Serum Lipids

NCT01882283
View directory record Official record
Conditions
Hypercholesterolemia
Interventions
Tea Treatment Group, Placebo
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
45 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

WIC-Based Intervention to Promote Healthy Eating Among Low-Income Mothers

NCT04038385
View directory record Official record
Conditions
Cancer Prevention, Diet Modification, Vegetable Intake
Interventions
Multilevel Behavioral Intervention
Behavioral
Lead sponsor
William Paterson University of New Jersey
Other
Eligibility
18 Years to 99 Years
Enrollment
297 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Paterson, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 22, 2021 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional

A Controlled Trial of High Dietary Fiber Intake on Serum Lipids

NCT00593632
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Uncle Sam Cereal
Dietary Supplement
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep Timing, Eating and Activity Measurement Study

NCT04992611
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 Jul 22, 2026, 2:06 AM EDT