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Showing 1–24 of 72 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Caloric Restriction Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Reversal of Lipid-Induced Insulin Resistance

NCT02193295
View directory record Official record
Conditions
Insulin Resistance, NAFLD
Interventions
Caloric Restriction
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 90 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2034
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Recruiting Phase 4 Interventional

Bone, Exercise, Alendronate, and Caloric Restriction

NCT05764733
View directory record Official record
Conditions
Bone Loss
Interventions
Bisphosphonate, Resistance Training/Bone-Loading Exercise, Placebo
Drug · Behavioral · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
60 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
2
States / cities
Aurora, Colorado • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Active, not recruiting Not applicable Interventional

Renal Oxygen Consumption, Insulin Sensitivity, and Daily Caloric Restriction in ADPKD

NCT06496542
View directory record Official record
Conditions
Autosomal Dominant Polycystic Kidney
Interventions
Daily caloric restriction, Standard advice control
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Long-term Caloric Restriction and Cellular Aging Markers

NCT01256840
View directory record Official record
Conditions
Aging
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Results available

Exercise Intolerance in Elderly Patients With HFpEF(Heart Failure With Preserved Ejection Fraction)

NCT02636439
View directory record Official record
Conditions
Heart Failure, Diastolic, Obesity
Interventions
dietary, aerobic and resistance training, dietary, and aerobic exercise
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
60 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional

Caloric Restriction Before Surgery in Treating Patients With Endometrial, Prostate, or Breast Cancer

NCT02983279
View directory record Official record
Conditions
Breast Carcinoma, Endometrial Carcinoma, Prostate Carcinosarcoma
Interventions
Dietary Intervention, Counseling, Therapeutic
Dietary Supplement · Other · Procedure
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 28, 2025 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Factors Affecting Caloric Regulation in Human Feeding

NCT00108784
View directory record Official record
Conditions
Obesity
Interventions
Reduced-energy-density diet
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
20 Years to 60 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
1
States / cities
State College, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 12, 2010 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intermittent Fasting Versus Daily Caloric Restriction for Weight Loss

NCT03411356
View directory record Official record
Conditions
Obesity
Interventions
Daily Caloric Restriction (DCR), Intermittent Fasting (IMF)
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 60 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Active, not recruiting Not applicable Interventional

Effect of VLCD on the Reduction of Liver Steatosis and Fibrosis in Subjects With Obesity and NAFLD

NCT04861571
View directory record Official record
Conditions
NAFLD
Interventions
Dietary intervention with very low calorie diet (VLCD), Control Arm
Dietary Supplement · Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Results available

Daily Caloric Restriction and Intermittent Fasting in Overweight and Obese Adults With Autosomal Dominant Polycystic Kidney Disease

NCT03342742
View directory record Official record
Conditions
Polycystic Kidney, Autosomal Dominant
Interventions
Weight Loss
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Jul 22, 2026, 4:50 AM EDT
Terminated Not applicable Interventional Results available

Effect of Moderate Caloric Restriction on Glomerular Growth After Kidney Transplantation

NCT03607500
View directory record Official record
Conditions
Kidney Transplant; Complications, Glomerular Disease, Weight Gain, Kidney Transplant
Interventions
caloric intake reduction
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional

Improving Maintenance Following Very Low Calorie Diet: The Sustain Lost Weight (SLW) Intervention

NCT01222988
View directory record Official record
Conditions
Obesity
Interventions
Optifast Products
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 16, 2013 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Results available

Caloric Restriction in Treating Patients With Stage 0-I Breast Cancer Undergoing Surgery and Radiation Therapy

NCT01819233
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ, Invasive Ductal Breast Carcinoma, Invasive Lobular Breast Carcinoma, Lobular Breast Carcinoma in Situ, Recurrent Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer
Interventions
Behavioral dietary intervention, Therapeutic conventional surgery, Radiation therapy, Counseling intervention, Quality-of-life assessment
Behavioral · Procedure · Radiation + 1 more
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 5, 2025 · Synced Jul 22, 2026, 4:50 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, 4:50 AM 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 21, 2016 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional

Very Low Calorie Diet Weight Loss

NCT02780206
View directory record Official record
Conditions
Obesity, Very Low Calorie Diet
Interventions
Stable isotope amino acid infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
30 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2022 · Synced Jul 22, 2026, 4:50 AM EDT
Active, not recruiting Not applicable Interventional

Daily Caloric Restriction in ADPKD

NCT04907799
View directory record Official record
Conditions
Autosomal Dominant Polycystic Kidney, Overweight and Obesity
Interventions
Daily caloric restriction, Standard advice control
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Jul 22, 2026, 4:50 AM EDT
Recruiting Not applicable Interventional

Pre-operative SABR With and Without Caloric Restriction for Early Stage Breast Cancer

NCT04959474
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage 1 Breast Cancer AJCC v8, Anatomic Stage 2 Breast Cancer AJCC v8, Anatomic Stage 3 Breast Cancer AJCC v8, Breast Ductal Carcinoma in Situ, Invasive Breast Carcinoma, Triple Negative Breast Carcinoma
Interventions
Best Practice, Stereotactic Body Radiation Therapy, Resection, Sentinel Lymph Node Biopsy, Dietary Intervention, Questionnaire Administration, Quality-of-Life Assessment, Mammography, Biospecimen Collection
Other · Radiation · Procedure
Lead sponsor
Thomas Jefferson University
Other
Eligibility
40 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Vitamin D Supplementation During Caloric Restriction on Intestinal Calcium Absorption

NCT00472654
View directory record Official record
Conditions
Weight Loss, Vitamin D or Placebo
Interventions
Weight Loss, Vitamin D 2500 IU, Weight Maintenance
Behavioral · Dietary Supplement
Lead sponsor
Rutgers University
Other
Eligibility
50 Years to 72 Years · Female only
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Jul 22, 2026, 4:50 AM EDT
Terminated Not applicable Interventional Results available

2-5 Intermittent Caloric Restriction in HIV

NCT03489109
View directory record Official record
Conditions
Human Immunodeficiency Virus, Metabolic Syndrome
Interventions
Intermittent fasting, Standard of Care
Behavioral · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 20, 2022 · Synced Jul 22, 2026, 4:50 AM 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 7, 2017 · Synced Jul 22, 2026, 4:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Acute Effects of Caloric Restriction on Anthropometrics, Metabolism, and Cardiovascular Health in Overweight Adults

NCT05422391
View directory record Official record
Conditions
Obesity, Overweight, Intermittent Fasting
Interventions
3 day caloric restriction/metabolic reset
Dietary Supplement
Lead sponsor
Skidmore College
Other
Eligibility
25 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Saratoga Springs, New York
Source: ClinicalTrials.gov public record
Updated Dec 12, 2022 · Synced Jul 22, 2026, 4:50 AM 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 16, 2026 · Synced Jul 22, 2026, 4:50 AM EDT
Active, not recruiting Not applicable Interventional

Bariatric Surgery Versus Diet Alone in the Bile Acid Pathway and Weight Loss

NCT03238794
View directory record Official record
Conditions
Obesity
Interventions
Roux-En-Y Gastric Bypass, Low-calorie Diet
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Jul 22, 2026, 4:50 AM EDT