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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:07 AM EDT

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Showing 25–48 of 139 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Energy Intake Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Does Portion Size Influence Intake of Low-Energy-Dense Foods in Preschool-aged Children?

NCT00936507
View directory record Official record
Conditions
Caloric Intake
Interventions
Energy Density/Portion Size
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
3 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Energy Content and Energy Density of Pre-portioned Entrees

NCT01349023
View directory record Official record
Conditions
Obesity
Interventions
Energy density (ED), Energy content
Other
Lead sponsor
Penn State University
Other
Eligibility
19 Years to 45 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 16, 2012 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Breakfast Consumption and Energy Balance in Active Adult Males

NCT04862208
View directory record Official record
Conditions
Energy Intake, Substrate Utilization, Hormones, Satiety
Interventions
Maltodextrin supplement, Whey supplement, Water
Dietary Supplement
Lead sponsor
Ohio University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional

The TREND Study: Tapered Reduction in Energy Intake as a Novel Approach to Dieting

NCT02837211
View directory record Official record
Conditions
Obesity
Interventions
Tapered Low Calorie Diet, Traditional Low-Calorie Diet
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Influence of a Monopoly Game on Subtle Behaviors

NCT02470949
View directory record Official record
Conditions
Obesity, Eating Behavior
Interventions
Low Social Status, High Social Status
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
19 Years to 25 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 22, 2016 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Daily Protein Intake Patterns on Energy Metabolism and the Motivation to Snack

NCT02795442
View directory record Official record
Conditions
Obesity
Interventions
Even protein, Skewed protein
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
20 Years to 60 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2024
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Children's Intake of Foods Reduced in Energy Density

NCT01252433
View directory record Official record
Conditions
Vegetable Intake
Interventions
Energy density feeding study
Other
Lead sponsor
Penn State University
Other
Eligibility
3 Years to 6 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 16, 2012 · Synced Oct 20, 2026, 11:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Consistency in Individual Differences in Energy Intake Following Acute Exercise

NCT01645956
View directory record Official record
Conditions
Obesity, Sedentary
Interventions
Not listed
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 19, 2015 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhanced Internet Behavior Therapy for Treating Obesity

NCT00212238
View directory record Official record
Conditions
Obesity
Interventions
internet behavioral weight loss program
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
21 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 18, 2010 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Ultra Processed Versus Unprocessed Diets on Energy Intake

NCT03407053
View directory record Official record
Conditions
Healthy Diet
Interventions
Ultra-processed diet, Unprocessed diet
Dietary Supplement
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing Novel Methods to Teach Children to Recognize Internal Signals of Hunger

NCT03064919
View directory record Official record
Conditions
Pediatric Obesity
Interventions
Curriculum Testing
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
4 Years to 5 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Oct 20, 2026, 11:07 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Circadian Misalignment and Energy Balance

NCT03663530
View directory record Official record
Conditions
Obesity
Interventions
Meal times
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 49 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Combined Effects of Energy Density and Eating Rate on Appetite

NCT01406886
View directory record Official record
Conditions
Appetite
Interventions
Eating rate
Behavioral
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Move and Moderate in Balance

NCT00715130
View directory record Official record
Conditions
Overweight, Obesity, Sedentary
Interventions
Energy Balance
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 7, 2011 · Synced Oct 20, 2026, 11:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Participation of Breast Milk Feeding Mothers in Research

NCT03072251
View directory record Official record
Conditions
Breastfeeding, Energy Intake, eHealth
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
Not listed
Enrollment
570 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Oct 20, 2026, 11:07 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 19, 2010 · Synced Oct 20, 2026, 11:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Low Oxygen Exposure and Weight Status

NCT05289310
View directory record Official record
Conditions
Obesity
Interventions
Normobaric hypoxia (NH), Normobaric normoxia (NN)
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
22 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Daily Calorie or Alternate-day Calorie Reductions on Risk for Cardiovascular Disease and Cancer

NCT00467220
View directory record Official record
Conditions
Moderately Overweight Individuals
Interventions
calorie restriction
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
35 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Oct 20, 2026, 11:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Experimental Approach to Test Predictions of Body Weight Regulation Models

NCT06309576
View directory record Official record
Conditions
Obesity, Underweight
Interventions
Fasting-refeeding cycle
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Dietary Fat Cooking Blend on Energy Expenditure in Children

NCT01720589
View directory record Official record
Conditions
Childhood Obesity
Interventions
Melt (test oil), Corn oil (control)
Dietary Supplement
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
15 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 30, 2013 · Synced Oct 20, 2026, 11:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Food Phone Project

NCT01719445
View directory record Official record
Conditions
Comparison of Energy Intake Methods
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
12 Years to 18 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Nov 4, 2024 · Synced Oct 20, 2026, 11:07 AM EDT
Completed No phase listed Observational

Improving Nutrient Intake and Growth in Children With Multiple Food Allergies

NCT01571830
View directory record Official record
Conditions
Food Allergy
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
6 Months to 6 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 6, 2015 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

The Effects of Exenatide (Byetta ) on Energy Expenditure and Weight Loss in Nondiabetic Obese Subjects

NCT00856609
View directory record Official record
Conditions
Weight Loss, Obesity
Interventions
Byetta (exenatide), Weight loss, Metabolic Chamber, Placebo
Drug · Behavioral · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 55 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Oct 20, 2026, 11:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

CALERIE: Comprehensive Assessment of Long-Term Effects of Reducing Intake of Energy

NCT00427193
View directory record Official record
Conditions
Aging
Interventions
Caloric Restriction (CR), Control
Behavioral
Lead sponsor
Duke University
Other
Eligibility
21 Years to 50 Years
Enrollment
238 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
3
States / cities
Baton Rouge, Louisiana • Boston, Massachusetts • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 16, 2022 · Synced Oct 20, 2026, 11:07 AM EDT