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ClinicalTrials.gov public records Last synced Oct 9, 2026, 2:58 PM EDT

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Showing 169–192 of 392 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Low calorie diet Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multicenter Endoscopic Sleeve Gastrectomy (ESG) Trial (MERIT Trial)

NCT03406975
View directory record Official record
Conditions
Obesity, Hypertension, Diabetes Mellitus, Type 2
Interventions
Overstitch Endoscopic Suture System, Lifestyle Intervention
Device · Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 65 Years
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
9
States / cities
Orlando, Florida • Chicago, Illinois • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Oct 9, 2026, 2:58 PM EDT
Completed No phase listed Observational

Psychological Effects of Bone Marrow Transplants in Children

NCT00645931
View directory record Official record
Conditions
Psychological
Interventions
protein and calorie controlled diet and self-hypnotic relaxation
Behavioral
Lead sponsor
Corewell Health West
Other
Eligibility
1 Day to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 2, 2023 · Synced Oct 9, 2026, 2:58 PM EDT
Withdrawn Not applicable Interventional

Short-Term Endogenous Hydrogen Sulfide Upregulation For Vein Graft Disease

NCT05457881
View directory record Official record
Conditions
Vascular Diseases, Surgery
Interventions
Scandi-Shake
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Oct 9, 2026, 2:58 PM EDT
Terminated Not applicable Interventional

RCT of Caloric Restriction vs. Alternate-Day Fasting in Non-Alcoholic Fatty Liver Disease

NCT03365531
View directory record Official record
Conditions
NAFLD, Obesity, Diabetes Mellitus, Type 2
Interventions
Alternate Daily Fasting (ADF), Caloric Restriction (CR)
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 23, 2019 · Synced Oct 9, 2026, 2:58 PM EDT
Terminated Phase 4 Interventional Results available

LOSS- Louisiana Obese Subjects Study

NCT00115063
View directory record Official record
Conditions
Obesity
Interventions
group sessions, sibutramine, orlistat, diethylpropion, Low Calorie Diet, Health One, Intensive Medical Combination Therapy for Obesity, Control Condition
Behavioral · Drug · Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 60 Years
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 22, 2016 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Dietary Intervention on Insulin Requirements in Type 1 Diabetes

NCT04944316
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Dietary intervention
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 27, 2024 · Synced Oct 9, 2026, 2:58 PM EDT
Terminated Not applicable Interventional

The Effect of Severe Weight Loss and Protein Intake on Bone

NCT00472680
View directory record Official record
Conditions
Weight Loss
Interventions
Caloric restriction, high protein, Caloric restriction; normal protein, Nutrition Education
Behavioral
Lead sponsor
Rutgers University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Diet on the Gut-Muscle Axis in Older Adults

NCT05549622
View directory record Official record
Conditions
Sarcopenia, Dietary Exposure, Microbial Colonization
Interventions
Low-soluble fiber diet, High-soluble fiber diet
Other
Lead sponsor
Tufts University
Other
Eligibility
65 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 18, 2025 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Style Diet and Low Glycemic Responses

NCT03410719
View directory record Official record
Conditions
Insulin Sensitivity
Interventions
Hi GI
Other
Lead sponsor
Purdue University
Other
Eligibility
30 Years to 69 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 17, 2020 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Energy Restriction and Metabolic Aging in Humans

NCT00183027
View directory record Official record
Conditions
Obesity
Interventions
Dietary composition and energy intake
Behavioral
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
20 Years to 42 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 9, 2006 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional

Comparison of Dietary Sugar Reduction Methods

NCT04186793
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease
Interventions
Guided Grocery Shopping (GGS), Diet Provision Group
Behavioral · Other
Lead sponsor
Emory University
Other
Eligibility
8 Years to 16 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 25, 2022 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional

A Phase II Study of the Effect of a Low Calorie Diet on Patients Undergoing Liver Resection

NCT01645852
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease, Hepatic Steatosis, Steatohepatitis
Interventions
Optifast 800
Dietary Supplement
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
3
States / cities
Worcester, Massachusetts • Lebanon, New Hampshire • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Results available

Optimizing Individual Nutrition in Preterm Very Low Birth Weight Infants

NCT02372136
View directory record Official record
Conditions
Infant, Premature, Diseases, Infant, Small for Gestational Age
Interventions
Individualized Nutrition, Optimized nutrition
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
Up to 7 Days
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional

Short-Term Endogenous Hydrogen Sulfide Upregulation

NCT03303534
View directory record Official record
Conditions
Carotid Stenosis, Caloric Restriction
Interventions
ScandiShake
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Oct 9, 2026, 2:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Changes in Insulin Sensitivity After Weight Loss

NCT00627484
View directory record Official record
Conditions
Obesity, Type 2 Diabetes Mellitus, Insulin Resistance
Interventions
Gastric bypass, Gastric banding, Sleeve gastrectomy, Very low calorie diet
Procedure · Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 75 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2019 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Skeletal Muscle Lipid and Insulin Resistance: Effects of Physical Activity and Weight Loss

NCT00766298
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Exercise, Weight Loss, Exercise and weight loss
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
60 Years to 75 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2011
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Phase 2 Interventional Results available

Sex-related Differences in Arterial Stiffness in Type 2 Diabetics: Role of Uric Acid

NCT03648996
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Hyperuricemia
Interventions
Low-fructose diet, isocaloric, Allopurinol, Placebo, Low-fructose, hypocaloric
Other · Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
40 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 3, 2023 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Neurohormonal & Behavioral Correlates of Obesity and Weight Loss

NCT02063451
View directory record Official record
Conditions
Obesity
Interventions
Very Low Calorie Diet (VLCD)
Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Oct 9, 2026, 2:58 PM EDT
Terminated Phase 2 Interventional Results available

A Study To Examine The Efficacy And Safety Of Pramlintide+Metreleptin In Obese Subjects

NCT01235741
View directory record Official record
Conditions
Obesity
Interventions
Pramlintide+Metreleptin, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
18
States / cities
Greenbrae, California • La Jolla, California • Denver, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2015 · Synced Oct 9, 2026, 2:58 PM EDT
Completed Not applicable Interventional

Time Limited Eating in Adolescents With Type 2 Diabetes (KT2D)

NCT04536480
View directory record Official record
Conditions
Pediatric Obesity, Type 2 Diabetes, Time Restricted Eating
Interventions
Time Limited Eating, Components Common to All Study Arms., Control, Continuous Glucose Monitor
Behavioral · Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
12 Years to 21 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 9, 2026, 2:58 PM EDT
Active, not recruiting Not applicable Interventional

Controlled Low Calorie Diet in Reducing Side Effects and Increasing Response to Chemotherapy in Patients With Breast or Prostate Cancer

NCT01802346
View directory record Official record
Conditions
Breast Cancer, Hormone-resistant Prostate Cancer, Recurrent Prostate Cancer
Interventions
dietary intervention, nutritional support, laboratory biomarker analysis
Dietary Supplement · Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
19 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
3
States / cities
Los Angeles, California • Newport Beach, California • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 9, 2026, 2:58 PM EDT
Not listed No phase listed Observational

Impact of Life-Style Modification On Ablation Outcome in Atrial Fibrillation

NCT02219841
View directory record Official record
Conditions
Atrial Fibrillation, Obesity
Interventions
radiofrequency catheter ablation
Procedure
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Oct 9, 2026, 2:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Low Carb vs Normal Carb in Pregnancy

NCT03749889
View directory record Official record
Conditions
Gestational Diabetes
Interventions
100 g carbs, MyPlate
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Oct 9, 2026, 2:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Low Energy Availability and Pituitary Function (LEAP Study)

NCT05808647
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism
Interventions
5-day controlled metabolic dietary intake
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 11, 2023 · Synced Oct 9, 2026, 2:58 PM EDT