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Showing 1–24 of 356 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: High Carbohydrate Diet Clear all
Completed Phase 4 Interventional

Effects of Saxagliptin on Adipose Tissue Inflammation in Humans

NCT02285985
View directory record Official record
Conditions
Type 2 Diabetes Mellitus (T2DM)
Interventions
Saxagliptin, Placebo
Drug
Lead sponsor
Phoenix VA Health Care System
Federal
Eligibility
21 Years to 70 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 3, 2026, 9:38 AM EDT
Not yet recruiting Not applicable Interventional

Fueling Labor: Protein Supplementation for Intrapartum Glucose Control

NCT07571343
View directory record Official record
Conditions
Diabetes During Pregnancy
Interventions
High-Protein Beverage (Genius Gourmet Sparkling Protein Water), Standard Clear Liquid Diet, Continuous Glucose Monitoring (Abbott Freestyle Libre)
Dietary Supplement · Other · Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 3, 2026, 9:38 AM EDT
Recruiting Not applicable Interventional

Carbohydrate Beta Cell Function and Glucose Control in Children With Diabetes

NCT05899166
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Ketogenic diet, food delivery and education, Standard diet, food delivery and education
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
5 Years to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 23, 2025 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

d13C Added Sugar Intake Biomarker: Determining Validity in Children

NCT02455388
View directory record Official record
Conditions
Validation Studies
Interventions
High added sugar diet, Low added sugar diet
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
6 Years to 18 Years
Enrollment
370 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Sep 3, 2026, 9:38 AM EDT
Terminated Not applicable Interventional

Incidence of Diarrhea Using High and Low Osmolality Enteral Tube Feeding in Critically Ill Surgical Patients

NCT03487744
View directory record Official record
Conditions
Tube Feeding
Interventions
Osmolite 1.5, Promote without fiber
Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Sep 3, 2026, 9:38 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Bioavailability Study of Hemp Phenolics

NCT06098001
View directory record Official record
Conditions
Bioavailability, Metabolites, Excretion
Interventions
Low dose dietary fiber, High dose dietary fiber
Dietary Supplement
Lead sponsor
Brightseed
Industry
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Different Types of Resistant Starch

NCT00930956
View directory record Official record
Conditions
Postprandial Hyperglycemia
Interventions
Resistant Starch
Dietary Supplement
Lead sponsor
Kansas State University
Other
Eligibility
18 Years to 35 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2010 · Synced Sep 3, 2026, 9:38 AM EDT
Suspended Phase 2 Interventional

Paxalisib With a High Fat, Low Carb Diet and Metformin for Glioblastoma

NCT05183204
View directory record Official record
Conditions
Glioblastoma
Interventions
Paxalisib, Metformin, Ketogenic Diet
Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 3, 2026, 9:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of a Novel Method to Measure Insulin Sensitivity in Humans: A Pilot Study

NCT04774081
View directory record Official record
Conditions
Insulin Sensitivity
Interventions
24h Continuous glucose monitoring and urinary C-peptide collection
Device
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 13, 2022 · Synced Sep 3, 2026, 9:38 AM EDT
Recruiting Not applicable Interventional

Symptoms of Polycystic Ovarian Syndrome Ameliorated by Keto-Adaptation Pilot

NCT07227363
View directory record Official record
Conditions
PCOS (Polycystic Ovary Syndrome)
Interventions
Ketogenic diet, Exogenous Ketone Supplement
Other · Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Metabolic Effects of Consuming Sugar-Sweetened Beverages for Two Weeks

NCT01103921
View directory record Official record
Conditions
Metabolic Syndrome, Insulin Resistance, Dyslipidemia
Interventions
Glucose, Fructose, High-Fructose Corn Syrup, No sugar (Aspartame)
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 40 Years
Enrollment
214 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional

Therapeutic Diets in Alzheimer's Disease

NCT03860792
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Ketogenic Diet, Therapeutic Lifestyles Changes Diet
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
50 Years to 90 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Fairway, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tree Nut Consumption to Reduce Abdominal Adiposity

NCT03969264
View directory record Official record
Conditions
Millenials, Risk for Metabolic Syndrome
Interventions
High Carbohydrate or Tree Nut Food Snacks
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
22 Years to 36 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 4, 2023 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a PUFA-rich Diet on Acute Metabolic and Inflammatory High-Fat Meal Responses

NCT02246933
View directory record Official record
Conditions
Inflammation, Obesity
Interventions
PUFA Diet, Control Diet
Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 35 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 7, 2015 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CO-OP Trial: Community-based Outreach on Obesity in Pregnancy

NCT01841424
View directory record Official record
Conditions
Obesity, Pregnancy
Interventions
Dietary counseling. Maintain a food diary.
Behavioral
Lead sponsor
University of Missouri, Kansas City
Other
Eligibility
Female only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 29, 2018 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Saturated Fat on Large Low-density Lipoprotein (LDL) and High-density Lipoprotein (HDL)

NCT00895141
View directory record Official record
Conditions
Dyslipidemia
Interventions
Saturated Fat Diet
Dietary Supplement
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 70 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2013 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Increased Free Fatty Acids on Leptin Function

NCT01520454
View directory record Official record
Conditions
Obesity, Leptin Resistance
Interventions
Saline, Intralipid, Water, oral fat, Heparin
Drug · Dietary Supplement
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 10, 2018 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Thermic & Lipemic Properties of Dietary Carbohydrates

NCT01354574
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 12, 2011 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional

Fully Remote, Telehealth-based Ketogenic Metabolic Therapy for Long COVID

NCT07745699
View directory record Official record
Conditions
Long COVID Fatigue
Interventions
Ketogenic Metabolic Therapy, Lifestyle Intervention
Other · Behavioral
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Results available

Delish Study: Diabetes Education to Lower Insulin, Sugars, and Hunger

NCT03207711
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Carbohydrate-restricted diet, Mindfulness
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of High Carbohydrate vs. Low Carbohydrate Diet in Type 2 Diabetes

NCT04416204
View directory record Official record
Conditions
Diabetes Mellitus, Diabetes Mellitus, Type 2
Interventions
glycogen loading, No Glycogen Loading
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
30 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Sep 3, 2026, 9:38 AM 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 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolism, Exercise and Nutrition at UCSD (MENU Study)

NCT01424007
View directory record Official record
Conditions
Obese, Nondiabetic
Interventions
Weight loss
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years and older · Female only
Enrollment
245 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 3, 2026, 9:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Clinical Trial to Assess the Effects of Dairy on Insulin Sensitivity and β-Cell Function

NCT01936935
View directory record Official record
Conditions
Diabetes
Interventions
Low-fat dairy, Sugar-sweetened beverages
Other
Lead sponsor
Provident Clinical Research
Other
Eligibility
18 Years to 74 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 3, 2023 · Synced Sep 3, 2026, 9:38 AM EDT