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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: high carbohydrate diet Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Exogenous Ketones on Cognitive Function in Older Adults With Prediabetes?

NCT07546409
View directory record Official record
Conditions
Prediabetes, Healthy (Controls)
Interventions
Ketone Monoester (KE), Placebo
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
60 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Recruiting Not applicable Interventional

Effects of Lean Pork Loin Intake on Protein Homeostasis and Glucose Regulation in Prediabetic Adults

NCT06025292
View directory record Official record
Conditions
Hyperglycaemia (Non Diabetic), Prediabetes
Interventions
Lean Pork vs Plant-Based Protein
Other
Lead sponsor
University of Arkansas
Other
Eligibility
40 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Protein and Fiber at Breakfast on Appetite, Blood Sugar, and Cholesterol

NCT02169245
View directory record Official record
Conditions
Brain Activity, Appetite, Ingestive Behavior, Glucose Control, Cholesterol
Interventions
Dietary control of protein and fiber intake at breakfast
Other
Lead sponsor
Purdue University
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
West Lafayete, Indiana • West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Sep 29, 2026, 5:23 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Effects of a Supplement Derived From Palm Oil on Cholesterol Levels in the Blood

NCT02634606
View directory record Official record
Conditions
Hypercholesterolemia
Interventions
Gamma Delta Tocotrienols - Low Dose, Gamma Delta Tocotrienols - High Dose, Sugar Pill
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
35 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 11, 2019 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Intensive Glycemic Management and Outcomes Following Liver Transplantation

NCT01432093
View directory record Official record
Conditions
Hospital Hyperglycemia, Post-transplant Hyperglycemia
Interventions
Intensive glycemic management, Conventional management
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 12, 2013 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Ketogenic Diet Following Moderate to Severe Pediatric Traumatic Brain Injury

NCT04933448
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Ketogenic Diet
Other
Lead sponsor
Gillette Children's Specialty Healthcare
Other
Eligibility
2 Years to 17 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Minneapolis, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Terminated Phase 2 Interventional

Atkins Diet and Prostate Cancer Clinical Trial

NCT00932672
View directory record Official record
Conditions
Prostate Cancer
Interventions
Atkins Diet
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Male only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
3
States / cities
Los Angeles, California • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 6, 2015 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Heart Obesity Prevention Education

NCT02092545
View directory record Official record
Conditions
Obesity
Interventions
Ketogenic diet
Other
Lead sponsor
Tampa General Hospital
Other
Eligibility
25 Years to 64 Years · Male only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparison of the Metabolic Effects of Fructose, Glucose, High Fructose Corn Syrup and Sucrose at Normal Population Consumed Levels in Adults Aged 20-60 Years Old

NCT01797042
View directory record Official record
Conditions
Obesity
Interventions
Dietary Compliance
Behavioral
Lead sponsor
Rippe Lifestyle Institute
Industry
Eligibility
20 Years to 60 Years
Enrollment
366 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Celebration, Florida
Source: ClinicalTrials.gov public record
Updated Sep 29, 2014 · Synced Sep 29, 2026, 5:23 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pathways to Prevention Food-is-Medicine Trial

NCT07380243
View directory record Official record
Conditions
Heart Disease, Cardiovascular Health Status
Interventions
Nutrition Education, PRO-CVH, Healthy Conversation Skills, Medically tailored groceries/cooking classes
Behavioral
Lead sponsor
Amrik Singh Khalsa
Other
Eligibility
6 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Phase 2 Interventional Results available

Developing Adaptive Interventions for Cocaine Cessation and Relapse Prevention

NCT02896712
View directory record Official record
Conditions
Cocaine-Related Disorders
Interventions
Acceptance and Commitment Therapy (ACT), Drug Counseling (DC), Contingency Management (CM), Placebo, Modafinil
Behavioral · Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 60 Years
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Phase 4 Interventional

The Effect of Liraglutide on Dietary Lipid Induced Insulin Resistance in Humans

NCT02403284
View directory record Official record
Conditions
Insulin Resistance
Interventions
Liraglutide, Sugar Pill
Drug
Lead sponsor
Phoenix VA Health Care System
Federal
Eligibility
40 Years to 75 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet / Gut Microbiome Interaction and Influence on Inflammatory Disease in HIV Patients

NCT02610374
View directory record Official record
Conditions
HIV
Interventions
Agrarian Diet, Western-type Diet
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Sep 29, 2026, 5:23 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Mobile Regulation of Craving Training (mROC-T) to Improve Dietary Intake in Rural Adolescent Girls

NCT06723028
View directory record Official record
Conditions
Obesity and Type 2 Diabetes, Diet Modification
Interventions
Regulation of craving training
Behavioral
Lead sponsor
University of Wyoming
Other
Eligibility
15 Years to 18 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Laramie, Wyoming
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Not listed Not applicable Interventional

Effect of Diet on Gulf War Illness

NCT02881944
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Low FODMAP Diet, High FODMAP Diet
Behavioral
Lead sponsor
Ashok Tuteja
Federal
Eligibility
25 Years to 90 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Sep 29, 2026, 5:23 PM EDT
Terminated Phase 4 Interventional Results available

Efficacy of Metronidazole Prophylaxis Against Clostridium Difficile-Associated Diarrhea in High Risk Adult Patients

NCT02200328
View directory record Official record
Conditions
Clostridium Difficile Diarrhea
Interventions
Metronidazole, Placebo
Drug
Lead sponsor
Alison Schneider
Other
Eligibility
55 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Consuming Palm Oil With Different Macronutrient Intakes on Blood Lipids

NCT02922062
View directory record Official record
Conditions
Cardiovascular Diseases, Inflammation
Interventions
Canola Oil, Palm Oil, Butter
Other
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Water Up@ At Home: An Intervention to Replace Sugary Drinks With Water

NCT05159622
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Water Up! at Home
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Results available

Anti-inflammatory Effects of the Fiber

NCT02868788
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
dietary fiber, HFHC meal
Dietary Supplement · Other
Lead sponsor
University at Buffalo
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 29, 2026, 5:23 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effect of Prehabilitation on Surgical Outcomes of Abdominally-based Plastic Surgery Procedures

NCT04787874
View directory record Official record
Conditions
Ventral Hernia, Panniculus, Abdominoplasty, Flap Reconstruction
Interventions
Prehabilitation Program
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
19 Years and older
Enrollment
520 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Treatment Study of Fat Synthesis and Risk of Cardiovascular Disease

NCT02075710
View directory record Official record
Conditions
Overweight and Obesity
Interventions
High sugar/meal feed, High sugar/nibble, High fat/meal feed, High fat/nibble, High sugar/ 3 meals a day, High fat/ 3 meals a day
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
20 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Fatty Acid Composition and Obesity-related Metabolic Abnormalities

NCT01451970
View directory record Official record
Conditions
Overweight/Obese Women
Interventions
High Fat Diet
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 20, 2022 · Synced Sep 29, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Exercise and Nutrition on Obese Microbiome

NCT04138303
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Exercise Protocol, Calorie-Restrictive Low Carbohydrate Diet (CR-LC), Ancestral Diet (AD)
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Sep 29, 2026, 5:23 PM EDT
Not yet recruiting Not applicable Interventional

A Plant-Based Diet in the Treatment of Coronary Microvascular Dysfunction

NCT07821372
View directory record Official record
Conditions
Coronary Microvascular Dysfunction
Interventions
Polyphenol-Rich Plant-Based Diet
Other
Lead sponsor
Emory University
Other
Eligibility
45 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 29, 2026, 5:23 PM EDT