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ClinicalTrials.gov public records Last synced Sep 25, 2026, 10:24 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Diet Modification
Interventions
Low glycemic index diet
Other
Lead sponsor
Sibylle Kranz, PhD, RDN
Other
Eligibility
2 Years to 5 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed Not applicable Interventional

The Breakfast Study

NCT00593307
Conditions
Glycemic Response, Hunger
Interventions
high GI, Low GI, Low GI Low Carb, High GI Low carb
Other
Lead sponsor
Temple University
Other
Eligibility
21 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

The Metabolic Effects of Different Weight Loss Diets

NCT00422630
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
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Eating for Reproductive Health (HERHealth)

NCT01509066
Conditions
Polycystic Ovarian Syndrome, Infertility, Obesity, Overweight
Interventions
Diet
Other
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Columbia, South Carolina
Conditions
Gestational Diabetes
Interventions
Food Order Therapy, Medical Nutrition Therapy
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Completed Not applicable Interventional

Automated Telephone Nutrition Support

NCT01040676
Conditions
Diabetes Mellitus
Interventions
Automated Telephone Nutrition Support
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 85 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Oakland, California
Conditions
Type 2 Diabetes Mellitus, Overweight, Obesity
Interventions
Low carbohydrate, ketogenic diet, Low glycemic index, reduced calorie diet
Behavioral
Lead sponsor
Robert C. Atkins Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Hyperglycemia, Obesity Prevention
Interventions
powder shake with very low glycemic index, Ceral Breakfast
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
25 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Completed Phase 1Phase 2 Interventional

Diabetic Educational Eating Plan

NCT00473811
Conditions
Low-GI Dietary Education, ADA Dietary Education
Interventions
Low GI, ADA diet
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
Worcester, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Replacing Refined Carbohydrates With Healthy Fats on Cardio-metabolic Markers

NCT02695433
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
Conditions
Obesity, Type 2 Diabetes Mellitus
Interventions
Low Glycemic Load Diet versus Low Fat Diet
Behavioral
Lead sponsor
Nazrat Mirza
Other
Eligibility
7 Years to 14 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Diabetes Mellitus, Type 2
Interventions
Vegan diet, American Diabetes Association guidelines
Other
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Completed Not applicable Interventional Accepts healthy volunteers

Thermic & Lipemic Properties of Dietary Carbohydrates

NCT01354574
Conditions
Exogenous Obesity, Dietary Modification
Interventions
High Glycemic Index meals, Low Glycemic Index meals
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 48 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
1
States / cities
Davis, California
Conditions
Type 2 Diabetes, Type 1 Diabetes, Pregnancy, High Risk
Interventions
Mid-Ohio Food Farmacy (MOF+) produce delivery, Nutrition education with Dining with Diabetes (DWD), Health Impact Ohio Central Ohio Pathways Hub to address unmet social needs
Dietary Supplement · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older · Female only
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Monoclonal Gammopathy of Undetermined Significance, Smoldering Multiple Myeloma
Interventions
Plant based meals
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Type 2 Diabetes, Obesity
Interventions
Portion-controlled diet, Usual Diet
Other · Dietary Supplement
Lead sponsor
Nutrisystem, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Type 2 Diabetes Mellitus in Obese
Interventions
NDPR diet, USDA healthy eating diet
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Diabetes Mellitus, Type 2
Interventions
Low-fat, low-Glycemic Index, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Active, not recruiting Not applicable Interventional

Diet and Health in Adults With Metabolic Syndrome

NCT03935048
Conditions
Metabolic Syndrome
Interventions
Higher protein, low glycemic load diet
Dietary Supplement
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
18 Years to 85 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Fayetteville, Arkansas
Conditions
Breast Cancer
Interventions
Low Glycemic Diet
Behavioral
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
40 Years to 60 Years · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
1
States / cities
Buffalo, New York
Completed Not applicable Interventional Accepts healthy volunteers

Macronutrient Effects on Alzheimer's Disease (MEAL-2)

NCT02463084
Conditions
Prediabetic State, Insulin Resistance, Middle Age, Prehypertension, Mild Cognitive Impairment
Interventions
Low Diet, High Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
45 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Not listed Not applicable Interventional Accepts healthy volunteers

Low-Glycemic (LGI) Diet in Pregnant People With Epilepsy

NCT06175247
Conditions
Epilepsy
Interventions
Low Glycemic Index Diet
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Cystic Fibrosis
Interventions
Sugar Sweetened Beverages (SSB), Hi GI, Lo GI
Other
Lead sponsor
Emory University
Other
Eligibility
12 Years to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Recruiting Not applicable Interventional Accepts healthy volunteers

The CARING Study: Creating and Restoring Health Through Nutrition Guidance

NCT05795439
Conditions
Type2diabetes, Type 2 Diabetes Treated With Insulin
Interventions
Low-fat, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia