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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Accepts healthy volunteers Results available

Mechanisms of Obesity and Its Metabolic Complications in Youth

NCT03454828
View directory record Official record
Conditions
Obesity, Childhood
Interventions
obese carbohydrate diet, lean carbohydrate diet
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
15 Years to 21 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 8, 2025 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional

WW Improving Nutrition Study: A Randomized Controlled Trial

NCT05648344
View directory record Official record
Conditions
Overweight and Obesity
Interventions
WW, Control
Behavioral
Lead sponsor
Georgia Southern University
Other
Eligibility
18 Years to 70 Years
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Savannah, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Results available

Improving Diet and Exercise in Acute Lymphoblastic Leukemia (IDEAL Weight in ALL)

NCT02708108
View directory record Official record
Conditions
B Precursor Type Acute Leukemia
Interventions
Dietary Intervention, Activity and Exercise Intervention
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
10 Years to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Embracing Morning BReakfast and Activity for Classroom Engagement

NCT06555627
View directory record Official record
Conditions
Child Development
Interventions
High Protein Breakfast, Morning Exercise, High Carb Breakfast
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
6 Years to 11 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Sep 28, 2026, 7:50 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Colorectal Cancer and Nutrition Education Program Among Minority Patients With Type 2 Diabetes

NCT05765214
View directory record Official record
Conditions
Colorectal Cancer, Type 2 Diabetes
Interventions
Intervention Group (IG)
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
35 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Sep 28, 2026, 7:50 AM EDT
Recruiting Not applicable Interventional

Effects of Ketosis on Brain Function in Patients With T1DM

NCT04219709
View directory record Official record
Conditions
Type1diabetes
Interventions
Very low carbohydrate diet, Standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional

Ketogenic Diet to Improve Neuro-recovery

NCT03509571
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Ketogenic Diet, Standard Diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
19 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Phase 2 Interventional

Examining the Effects of Diet on Health With an Online Program

NCT01967992
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Behavioral: Low Carbohydrate, Ketogenic Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 13, 2015 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Metabolic Effects of Different Weight Loss Diets

NCT00422630
View directory record Official record
Conditions
Metabolic Syndrome X, Obesity, Insulin Resistance, Hypertension, Diabetes
Interventions
The DASH diet, The low glycemic Index Diet, Reduced calorie American Diet
Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 12, 2011 · Synced Sep 28, 2026, 7:50 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

APOA2 Gene, Diet, Inflammation and Gut Health

NCT03322449
View directory record Official record
Conditions
Inflammation
Interventions
Animal Diet, Plant Diet
Other
Lead sponsor
Tufts University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 4, 2024 · Synced Sep 28, 2026, 7:50 AM EDT
Not yet recruiting Not applicable Interventional

Reset: Enhancing Weight Loss in a Digital Intervention

NCT07032571
View directory record Official record
Conditions
Obesity, Overweight, Weight Loss, Health Behavior, Lifestyle Intervention
Interventions
Core Behavioral Weight Loss Intervention, Limit Red Zone Foods, Limit Eating Window, Increase Protein, Increase Fiber Intake
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional

Facts-Up-Front Versus Traffic-Light Food Labels

NCT01626729
View directory record Official record
Conditions
Food Labeling
Interventions
Traffic Light+, Facts Up Front+, No label control group
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
703 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 24, 2012 · Synced Sep 28, 2026, 7:50 AM EDT
Not listed Not applicable Interventional

UCLA Breast Cancer Survivor Health Promotion Research Study

NCT05113485
View directory record Official record
Conditions
Breast Cancer
Interventions
Diabetes Prevention Program-based lifestyle change intervention (DPP), Highly Microbiota-Accessible Foods (HMAFs) intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 75 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 10, 2022 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Retrospective Evaluation of Athens Complete Health Improvement Program (CHIP) Database

NCT03025451
View directory record Official record
Conditions
Cardiovascular Diseases, Diabetes Mellitus, Hypertension, Dyslipidemias, Overweight and Obesity
Interventions
The Complete Health Improvement Program
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
Not listed
Enrollment
512 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional

A Low-Carbohydrate Diabetes Prevention Program

NCT03258918
View directory record Official record
Conditions
PreDiabetes
Interventions
Low-Carbohydrate Diabetes Prevention Program
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 11, 2018 · Synced Sep 28, 2026, 7:50 AM EDT
Recruiting Not applicable Interventional

Effect of Watermelon on Gut and Cardiometabolic Health

NCT06588218
View directory record Official record
Conditions
Obesity and Overweight, Dysbiosis
Interventions
Watermelon, Belvita Breakfast Sandwich + 12 oz Water
Other
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 30 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional

Study of Lifestyle Modification in HIV Lipodystrophy

NCT00111358
View directory record Official record
Conditions
HIV, Metabolic Diseases
Interventions
Lifestyle Modification, No lifestyle modification
Behavioral · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 17, 2011 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Replacing Refined Carbohydrates With Healthy Fats on Cardio-metabolic Markers

NCT02695433
View directory record Official record
Conditions
Pre-diabetes, Metabolic Syndrome
Interventions
Active, Control
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
25 Years to 60 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Sep 28, 2026, 7:50 AM EDT
Recruiting Not applicable Interventional

Very Low Carbohydrate Diets and Glucagon Response in T1DM

NCT04200391
View directory record Official record
Conditions
Type1diabetes
Interventions
Very low carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Intervention for Crohn's Disease Patient

NCT04213729
View directory record Official record
Conditions
Crohn Disease
Interventions
Diet Counseling, CD LFD, Dyadic Psychological Support (DPS)
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 28, 2026, 7:50 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

The Role of Microbiome Reprogramming on Liver Fat Accumulation

NCT03914495
View directory record Official record
Conditions
NAFLD
Interventions
Inulin, Placebo
Dietary Supplement
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
35 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Modulation of Bacterial Sulfur and Bile Acid Metabolism and Colon Cancer Risk

NCT03550885
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High taurine and saturated fat diet, Low in taurine and saturated fat diet
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
45 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Eggs on Postprandial Metabolism

NCT01351207
View directory record Official record
Conditions
Healthy
Interventions
Eggs
Other
Lead sponsor
Tufts University
Other
Eligibility
50 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 18, 2014 · Synced Sep 28, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Pecans on Biomarkers of Risk for Cardiovascular Disease and Diabetes

NCT01950806
View directory record Official record
Conditions
Cardiovascular Disease Risk, Type 2 Diabetes Risk
Interventions
Pecan-containing diet, Nut-free diet
Other
Lead sponsor
Tufts University
Other
Eligibility
50 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Sep 28, 2026, 7:50 AM EDT