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Showing 1–24 of 412 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Low-carbohydrate diet Clear all
Completed Not applicable Interventional

Effect of Dietary Macronutrient Composition

NCT01371396
View directory record Official record
Conditions
Metabolic Syndrome, Non-alcoholic Fatty Liver Disease, Obesity
Interventions
Low-fat diet, Low-carbohydrate diet
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
20 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Sep 1, 2026, 10:58 AM 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 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Liking Adaptation to Beverages With Varying Sweetness Levels After Prolonged Exposure

NCT04609657
View directory record Official record
Conditions
Sweetness Liking Adaptation
Interventions
Flavored carbonated soft drink (CSD)
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
25 Years to 55 Years
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Sep 1, 2026, 10:58 AM 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 4, 2012 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional

The Supporting Understanding of PCOS Education and Research (SUPER) Study

NCT05452642
View directory record Official record
Conditions
Polycystic Ovary
Interventions
DASH diet, Very low-carbohydrate diet
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 1, 2026, 10:58 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Photobiomodulation & Ketogenic Diet for Treatment of Mid-periphery Retinal Disorders for Alzheimer's Disease Prevention

NCT03859245
View directory record Official record
Conditions
Diabetic Retinopathy (DR), Age-related Macular Degeneration (AMD), Mid-peripheral Drusen Formation, Diabetic Macular Edema (DME)
Interventions
Photobiomodulation, Ketogenic diet
Behavioral
Lead sponsor
Bristlecone Health, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Eagan, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 3, 2019 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional

Safety and Feasibility of a Low Carbohydrate Diet in Children With Type 1 Diabetes

NCT04228822
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Low carbohydrate diet
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
5 Years to 11 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional

Effect of Gum Arabic on Gastrointestinal Transit and Permeability

NCT03742076
View directory record Official record
Conditions
Diverticulitis
Interventions
High-dose prebiotic, Low-dose prebiotic, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 9, 2023 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Replacing Refined Carbohydrates With Healthy Fats on Cardio-metabolic Markers

NCT02695433
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional

A Carbohydrate-restricted Diet to Reverse Fatty Liver in Adolescents With Obesity

NCT02787668
View directory record Official record
Conditions
Non-alcoholic Fatty Liver Disease, Childhood Obesity, Insulin Resistance
Interventions
Carbohydrate-restricted diet, Control, low-fat diet
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
9 Years to 17 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 20, 2022 · Synced Sep 1, 2026, 10:58 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Fiber on Insulin Sensitivity

NCT01521806
View directory record Official record
Conditions
Focus of the Study is Insulin Sensitivity
Interventions
Dietary Fiber
Dietary Supplement
Lead sponsor
Ingredion Incorporated
Industry
Eligibility
19 Years to 70 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 30, 2012 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Fasting-Mimicking Diet on Skin Health

NCT05564624
View directory record Official record
Conditions
Skin
Interventions
Fasting mimicking diet (FMD)
Other
Lead sponsor
L-Nutra Inc
Industry
Eligibility
35 Years to 60 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Phase 1Phase 2 Interventional Results available

The University of Michigan Wellness for Liver Health Study

NCT05010070
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease
Interventions
diet and lifestyle program
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

De Novo Lipogenesis, Lipid and Carbohydrate Metabolism in Non-alcoholic Fatty Liver Disease

NCT00714129
View directory record Official record
Conditions
Non-alcoholic Fatty Liver Disease, Diabetes
Interventions
Dietary intervention (calorie restricted diet)
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 60 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
1
States / cities
Vallejo, California
Source: ClinicalTrials.gov public record
Updated Feb 16, 2020 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Reinforcing Value of Added Sugars

NCT02744001
View directory record Official record
Conditions
Obesity
Interventions
Low Added Sugar Diet
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 39 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Development of an Adaptive Treatment for Weight Loss in People With Prediabetes

NCT04745572
View directory record Official record
Conditions
PreDiabetes, Obesity
Interventions
High Carbohydrate Diet, Reduced Carbohydrate Diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 75 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 1, 2026, 10:58 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Low Carb vs Normal Carb in Pregnancy

NCT03749889
View directory record Official record
Conditions
Gestational Diabetes
Interventions
100 g carbs, MyPlate
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2019 · Synced Sep 1, 2026, 10:58 AM EDT
Completed No phase listed Observational

Positron Emission Tomography for the Diagnosis of Immune Checkpoint Inhibitor-Related Myocarditis

NCT05062395
View directory record Official record
Conditions
Myocarditis Acute
Interventions
Computed Tomography, Fludeoxyglucose F-18, Low Carbohydrate High Fat Diet, Positron Emission Tomography
Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 9, 2023 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional

Low Carbohydrate Diet: The Effects on Non Alcoholic Fatty Liver Disease in Obese Teens With Metabolic Syndrome

NCT02358928
View directory record Official record
Conditions
NAFLD, Fatty Liver, Obesity, Metabolic Syndrome
Interventions
Diet Intervention
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years to 17 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2022 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Results available

Dietary Treatment Study of Pediatric NAFLD

NCT02513121
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease
Interventions
Dietary modification
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
11 Years to 16 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
2
States / cities
San Diego, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Assessment of Endogenous Oxalate Synthesis

NCT05229952
View directory record Official record
Conditions
Healthy, Kidney Stone, Obesity
Interventions
Low-oxalate controlled diet, Primed, continuous intravenous infusion of 13C2-oxalate
Dietary Supplement · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 75 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 12, 2025 · Synced Sep 1, 2026, 10:58 AM EDT
Not listed Not applicable Interventional

Impact of Two Dietary Interventions on Simple Carbohydrate Intolerance

NCT06057376
View directory record Official record
Conditions
Carbohydrate Intolerance
Interventions
Low-FODMAP diet group (LFD), Low Sugar diet group (LAS)
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
5 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Springfield, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Results available

Dietary Carbohydrate and GERD in Veterans

NCT02384551
View directory record Official record
Conditions
Gastroesophageal Reflux Disease, Obesity
Interventions
Dietary Carbohydrate
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 1, 2026, 10:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Specialized Diet for the Unique Metabolic Characteristics of Peripubertal African American Girls

NCT00718874
View directory record Official record
Conditions
Obesity, Type 2 Diabetes
Interventions
Dietary
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
9 Years to 15 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Sep 1, 2026, 10:58 AM EDT