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ClinicalTrials.gov public records Last synced Sep 10, 2026, 11:46 AM EDT

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Showing 1–24 of 392 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Medical Oncology, Integrative Oncology, Medical Nutrition Therapy
Interventions
Diet
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Buffalo, New York
Completed Phase 4 Interventional Accepts healthy volunteers

The Safety and Efficacy of Low and High Carbohydrate Diets

NCT00143936
Conditions
Obesity
Interventions
Low- Carbohydrate -Atkins Diet, Low Calorie Diet
Behavioral
Lead sponsor
Temple University
Other
Eligibility
18 Years to 65 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
3
States / cities
Denver, Colorado • St Louis, Missouri • Philadelphia, Pennsylvania
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
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
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
Conditions
Diabetes Type II
Interventions
Low Carbohydrate Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Conditions
Alzheimer Disease
Interventions
Lifestyle medicine
Behavioral
Lead sponsor
Preventive Medicine Research Institute
Other
Eligibility
45 Years to 90 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
4
States / cities
San Diego, California • Sausalito, California • Boston, Massachusetts + 1 more
Conditions
Breast Cancer
Interventions
Nutrition and resistance training exercise intervention
Other
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Pre-diabetes
Interventions
Normal Diet, Low carb diet, CGM with no real time feedback, CGM with real time feedback), Education material
Other · Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Livonia, Michigan
Conditions
Obesity
Interventions
Weight loss
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
25 Years to 60 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Type 2 Diabetes Mellitus (T2DM), Type 2 Diabetes
Interventions
NOURISH Diet, Self-Selected Diet (Control)
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Stanford, California
Conditions
Obesity
Interventions
Advice on diet, physical activity, and behavior change, Instruction in food portion size, Provision of pre-portioned foods, Advice on healthy eating for weight loss
Behavioral · Other
Lead sponsor
Penn State University
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
University Park, Pennsylvania
Conditions
Obesity
Interventions
Milk Thistle (MT), Lactobacillus Gasseri (LAC), Exercise (EX), Control (CON)
Dietary Supplement · Behavioral
Lead sponsor
Kyle Flack
Other
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lexington, Kentucky
Conditions
Obesity, Bariatric Surgery, Morbid Obesity, Diabetes Mellitus Type 2, Diet Therapy
Interventions
Roux-en-Y Gastric Bypass, Caloric Restriction
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
3
States / cities
Baltimore, Maryland • Bethesda, Maryland • Nashville, Tennessee
Completed Not applicable Interventional Accepts healthy volunteers

Utilization of Very Low Calorie Diet in Obese General Surgery Patients

NCT03553849
Conditions
Morbid Obesity
Interventions
Very low calorie diet
Dietary Supplement
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years to 65 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Newark, Delaware
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Butter & MCT Oil on Lipoproteins - A RCT

NCT02611102
Conditions
Hyperlipidemia
Interventions
MCT oil + Butter in Coffee
Dietary Supplement
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
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
Completed Not applicable Interventional

KU Alternate Meal Energy Level Study

NCT03696966
Conditions
Obesity, Weight Loss
Interventions
Portion-Controlled Meals, Low-Calorie Diet, Intermittent Very-Low Calorie Diet
Dietary Supplement · Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Kansas City, Kansas
Completed Not applicable Interventional Results available

Health, Aging and Later-Life Outcomes

NCT05424042
Conditions
Aging
Interventions
In-Person Caloric Restriction, Remote Caloric Restriction, Time-restricted
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
60 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
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
Conditions
Obesity; Familial, Pregnancy Related
Interventions
Very-low energy Diet (VLED), Standard of care (SOC)
Dietary Supplement · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Obesity, Normal Physiology, Healthy Volunteers
Interventions
+200% of dietary requirements, 50% of calories from carbohydrates, 20% from protein, and 30% from fat, fasting, -50% of energy balance requirements. 50% of calories from carbohydrates, 20% from protein, and 30% from fat, +150% of energy balance requirements, 50% of calories from carbohydrates, 20% from protein, and 30% from fat, +200% of dietary requirements, 51% of the calories from carbohydrates, 46%, from fat and 3% from protein, -25% of energy balance requirements, 50% of calories from carbohydrates, 20% from protein, and 30% from fat, +150% of dietary requirements, 51% of the calories from carbohydrates, 46%, from fat and 3% from protein
Dietary Supplement
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Inherited and Environmental Risks Acting on Body Weight

NCT07430852
Conditions
Genetics, Obesity
Interventions
Diet modification
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
20 Years to 45 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Seattle, Washington
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Uric Acid, Klotho and Salt Sensitivity in Young Adults Born Preterm

NCT04026776
Conditions
Salt; Excess, Blood Pressure Disorders
Interventions
Allopurinol, Dietary Intervention
Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
22 Years to 33 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina