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ClinicalTrials.gov public records Last synced Oct 10, 2026, 12:50 PM EDT

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Showing 121–144 of 412 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: low carbohydrate diet Clear all
Completed Not applicable Interventional

A Pilot Study Examining Diet in Primary Sclerosing Cholangitis

NCT04678219
View directory record Official record
Conditions
Primary Sclerosing Cholangitis
Interventions
Dietary Intervention
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Recruiting Not applicable Interventional

Ketogenic and Carnivore (Lion) Diets for Inflammatory Bowel Disease and Rheumatoid Arthritis

NCT07524244
View directory record Official record
Conditions
Rheumatoid Arthritis (RA), Crohn's Disease (CD), Ulcerative Colitis (UC)
Interventions
Ketogenic diet, Carnivore (Lion) Diet
Behavioral
Lead sponsor
Fuller Research Foundation
Other
Eligibility
18 Years to 64 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional

Can Neural Network Instability in Schizophrenia be Improved With a Very Low Carbohydrate Ketogenic Diet?

NCT05268809
View directory record Official record
Conditions
Schizophrenia, Bipolar Disorder
Interventions
Ketogenic diet
Other
Lead sponsor
Northern California Institute of Research and Education
Other
Eligibility
18 Years to 65 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional

Nutrition for Asthmatics with Obesity

NCT05222451
View directory record Official record
Conditions
Asthma, Obesity
Interventions
DGA Diet, MCT Diet, KETO Diet
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 10, 2026, 12:50 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Recruiting Not applicable Interventional

A Study Of Milk Consumption In Metabolic Syndrome

NCT07401888
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Full-fat diet, Low-fat diet
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Brain Fuel - Morning Nutrition and Cognitive Function

NCT03386396
View directory record Official record
Conditions
Obese, Healthy
Interventions
High protein/low carbohydrate, High carbohydrate/low protein
Dietary Supplement
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
9 Years to 10 Years
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carbohydrates and Related Biomarkers

NCT00622661
View directory record Official record
Conditions
Healthy, Overweight
Interventions
Low Glycemic Load Diet, High Glycemic Load Diet
Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 45 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 5, 2012 · Synced Oct 10, 2026, 12:50 PM EDT
Active, not recruiting Not applicable Interventional

Fitness and Nutrition in Glioma

NCT06665373
View directory record Official record
Conditions
Malignant Glioma
Interventions
Modified Atkins Diet, Fitness Program
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Determine the Digestive and Physiological Effects of an Extract From Bran in Healthy Men and Women

NCT01073969
View directory record Official record
Conditions
Healthy
Interventions
wheat bran extract, control wheat bran extract
Other
Lead sponsor
Kellogg Company
Industry
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Glen Ellyn, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2010 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Contrasting Ketogenic and Mediterranean Diets in Individuals With Type 2 Diabetes and Prediabetes: The Keto-Med Trial

NCT03810378
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, PreDiabetes
Interventions
Mediterranean Diet (Med-Plus), Well-Formulated Ketogenic Diet (WFKD)
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 10, 2026, 12:50 PM EDT
Active, not recruiting Not applicable Interventional

Diet and Health in Adults With Metabolic Syndrome

NCT03935048
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 10, 2026, 12:50 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 12, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Mechanism of Microbiome-induced Insulin Resistance in Humans (Aim 1)

NCT02124759
View directory record Official record
Conditions
Insulin Sensitivity
Interventions
Sevelamer, Synbiotic, Maltodextrin, High Fat diet, Low Fat diet
Drug · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 15, 2021 · Synced Oct 10, 2026, 12:50 PM EDT
Terminated Phase 1 Interventional

Effect of Cinnamon Extract on Insulin Resistance in Polycystic Ovary Syndrome

NCT00970541
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Insulin Resistance
Interventions
Cinnamon Supplementation, Placebo (wheat flour)
Dietary Supplement
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 25, 2021 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional

Groceries for Black Residents of Boston to Stop Hypertension Among Adults Without Treated Hypertension

NCT05121337
View directory record Official record
Conditions
Elevated Blood Pressure, Hypertension
Interventions
Dietitian-Assisted DASH groceries, Self-directed shopping
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Biobehavioral Impact of Diet Quality on Affect and Craving

NCT04105712
View directory record Official record
Conditions
Food Addiction, Withdrawal
Interventions
Dietary Change (low in highly processed foods)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
25 Years to 40 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 10, 2026, 12:50 PM EDT
Recruiting Not applicable Interventional

Efficacy and Safety of a Ketogenic Diet in Type 1 Diabetes

NCT06503809
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Ketogenic Diet, Standard Diet
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Results available

Investigating Racial Differences in Diet Benefits for Knee Osteoarthritis

NCT04343716
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
Low-carbohydrate diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
65 Years to 75 Years · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Recruiting Not applicable Interventional

Ketogenic and Nutritional Interventions for First Episode Bipolar Disorder

NCT06221852
View directory record Official record
Conditions
Bipolar I Disorder, Psychosis, Schizoaffective Disorder
Interventions
Ketogenic diet, Dietary Guidelines for Americans
Other
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional

Understanding the Paradoxical Rise in Blood Glucose in the Context of a Low-carbohydrate Diet

NCT07713316
View directory record Official record
Conditions
Elevated Blood Glucose, Low-carbohydrate Diet
Interventions
Carbohydrate Drink, Fat Drink, Protein Drink
Dietary Supplement
Lead sponsor
Brigham Young University
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Provo, Utah
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Pain in Amputees Reduced by Administration of Diet Examination

NCT05460845
View directory record Official record
Conditions
Amputation, Phantom Limb Pain, Residual Limb Pain
Interventions
Low-Carbohydrate Diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Small Bowel Microbiota Characterization in Healthy Individuals Before and After Consumption of a Western Diet

NCT03266536
View directory record Official record
Conditions
Small Intestine Bacteria
Interventions
Western diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Oct 10, 2026, 12:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low-Carbohydrate Dietary Pattern on Glycemic Outcomes Trial

NCT03675360
View directory record Official record
Conditions
Diabetes, PreDiabetes, Metabolic Disease, Hyperglycemia, Diet Modification, Glucose Intolerance, Glucose Metabolism Disorders (Including Diabetes Mellitus), Endocrine System Diseases
Interventions
Low-Carbohydrate Diet
Behavioral
Lead sponsor
Tulane University School of Public Health and Tropical Medicine
Other
Eligibility
40 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Oct 10, 2026, 12:50 PM EDT