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ClinicalTrials.gov public records Last synced Oct 12, 2026, 7:08 AM EDT

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Showing 121–144 of 205 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Dietary Carbohydrate Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Sugar-sweetened Beverage Consumption Among Young Adults

NCT03672578
View directory record Official record
Conditions
Intention, Health Knowledge, Attitudes, Practice
Interventions
loss-frame, gain-frame, text-only, icon, attribution, no attribution, No label
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
2,971 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jan 23, 2019 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

The Lifestyle Education About Nutrition for Diabetes (Legend) Study

NCT05237128
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Very low-carbohydrate diet, Moderate-carbohydrate plate-method diet
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
San Francisco, California • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 10, 2025 · Synced Oct 12, 2026, 7:08 AM EDT
Terminated Not applicable Interventional Results available

LoBAG30 Diet in Patients on Metformin

NCT00607867
View directory record Official record
Conditions
Diabetes Mellitus, Diet
Interventions
LoBAG30 diet, Control Diet
Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
50 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 12, 2014 · Synced Oct 12, 2026, 7:08 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 29, 2021 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Sugar-Sweetened Beverage Health Warnings

NCT03511937
View directory record Official record
Conditions
Dietary Habits
Interventions
Sugar-Sweetened Beverage Health Warning Label, Neutral Label
Behavioral · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 30, 2021 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Sip and Snack Better (SSB) Study: Improving Added Sugar in Adolescents

NCT07027865
View directory record Official record
Conditions
Dietary Habits, Diet, Healthy
Interventions
Sip & Snack Better (SSB) Intervention, Sip & Snack Better (SSB) Tech-Only Comparison
Behavioral · Other
Lead sponsor
Temple University
Other
Eligibility
12 Years to 16 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Effect of Macrocomposition on Nonalcoholic Fatty Liver Disease (NAFLD) in Bariatric Surgery Candidates

NCT00887393
View directory record Official record
Conditions
Morbid Obesity, Non-alcoholic Fatty Liver Disease
Interventions
low carbohydrate diet, low-fat diet
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Carbohydrate in Diet and Supplements on the Gastrointestinal Tolerability of LIK066

NCT03198767
View directory record Official record
Conditions
Obesity
Interventions
LIK066, Carbohydrate 50%, Carbohydrate 25%, Carbohydrate 8%, Carbohydrate 0%, Psyllium, Calcium carbonate
Drug · Dietary Supplement
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 5, 2021 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Reduced Carbohydrate Diet Intervention for Polycystic Ovary Syndrome (PCOS)

NCT01028989
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Reduced Glycemic Load Diet, Standard Diet
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 50 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 15, 2013 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Trial of Diet in Gestational Diabetes Mellitus: Metabolic Consequences to Mother and Offspring

NCT02244814
View directory record Official record
Conditions
Gestational Diabetes Mellitus
Interventions
Low Carbohydrate/Conventional, Choosing Healthy Options in Carbohydrate Energy
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 36 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 19, 2020 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Diet and Systemic Inflammation

NCT01424306
View directory record Official record
Conditions
Low-grade Chronic Inflammation, Intestinal Permeability, Type 2 Diabetes Mellitus, Cardiovascular Disease, Obesity
Interventions
Fructose-sweetened beverages, Glucose-sweetened beverages, High-fructose corn syrup-sweetened beverages
Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Results available

Dietary Glycemic Index, Brain Function and Food Intake in Patients With Type 1 Diabetes Mellitus

NCT02772783
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
high GI meal, low GI meal, euglycemic insulin clamp, primed-variable insulin infusion
Other · Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Low-Carbohydrate and Plant-Based Dietary Effects on Vascular Health

NCT05414851
View directory record Official record
Conditions
Heart Disease, Ischemic, Hyperlipidemias, Hypertension
Interventions
Whole-Food, Plant-Based Diet and Low-Carbohydrate Diet
Other
Lead sponsor
University of Rochester
Other
Eligibility
50 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Webster, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluate Effects of Sprinkled Format REDUCOSE in a Carbohydrate-rich, Mixed Meal on Post-prandial Glycemia

NCT04877366
View directory record Official record
Conditions
Dietary Supplement
Interventions
Dietary Supplement: Sprinkled Format REDUCOSE., Reference control, Active comparator
Dietary Supplement · Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Tustin, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Effect of Changing Diet on Fasting and Post Fat Load Lipoproteins

NCT00593424
View directory record Official record
Conditions
Hypertriglyceridemia, Diabetes Mellitus
Interventions
Low Fat/High Carbohydrate, High Monounsaturated Fat/Low Carbohydrate
Other
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Sep 2, 2011 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of High Fruit, Vegetable, and Dairy Intake on Plasma Lipids and Blood Pressure in Healthy Individuals

NCT01404897
View directory record Official record
Conditions
Cardiovascular Disease, Dyslipidemia, Blood Pressure
Interventions
Dietary Intervention
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
22 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2015 · Synced Oct 12, 2026, 7:08 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Comparison of the Short-Term Effect of Dietary Carbohydrate Restriction Versus Exogenous Ketone Supplementation on Myocardial Glucose Suppression and Timing to Achieve a State of Ketosis Using FDG PET/CT Serial Imaging

NCT04275453
View directory record Official record
Conditions
Healthy
Interventions
FDG, Ketone Drink, Ketogenetic Diet
Drug · Dietary Supplement · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 16, 2020 · Synced Oct 12, 2026, 7:08 AM EDT
Recruiting Phase 3 Interventional

A Study to Test Whether Survodutide Helps People With Type 2 Diabetes Control Their Blood Sugar

NCT07754461
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Placebo, Survodutide
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
89
States / cities
Birmingham, Alabama • Gilbert, Arizona • Paradise Valley, Arizona + 81 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Phase 2 Interventional Results available

Reduced Carbohydrate Versus Fat in Obese Subjects

NCT00846040
View directory record Official record
Conditions
Obesity
Interventions
Reduced fat diet, Reduced carbohydrate diet, Drug: f-18 fallypride, fMRI, PET
Other · Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 15, 2021 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional

Low-Carbohydrate Normocaloric Diet in Patients With Head and Neck Carcinoma (HNC)

NCT02555176
View directory record Official record
Conditions
Head and Neck Carcinoma
Interventions
Dietary intervention
Dietary Supplement
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preventing Early Childhood Obesity, Part 1: Family Spirit Nurture, 3-9 Months

NCT03101943
View directory record Official record
Conditions
Obesity, Water; Lack of, Breast Feeding, Tooth Erosion, Dental Plaque, Infant Obesity, Feeding Behavior, Mother-Child Relations, Dietary Habits, Dental Caries
Interventions
Family Spirit Nurture (FSN), Control Program, Water Delivery
Behavioral · Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
13 Years and older · Female only
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Shiprock, New Mexico
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 12, 2026, 7:08 AM EDT
Completed Not applicable Interventional Results available

Effects of a Very Low Carbohydrate Diet on Symptoms of Irritable Bowel Syndrome (IBS)

NCT00616200
View directory record Official record
Conditions
Diarrhea Predominant Irritable Bowel Syndrome
Interventions
Very low carbohydrate diet
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 16, 2017 · Synced Oct 12, 2026, 7:08 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Low-CArbohydrate Diet and SGLT2-INhibitOr to Achieve Moderate Ketosis in Healthy Volunteers

NCT05662865
View directory record Official record
Conditions
Ketones, Metabolism
Interventions
SGLT2 inhibitor, Controlled, Adaptive Study Diet
Drug · Other
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 12, 2026, 7:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Added Sugar Intake and Brain Structure and Function

NCT06640829
View directory record Official record
Conditions
Child Development
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
5 Years to 6 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 4, 2025 · Synced Oct 12, 2026, 7:08 AM EDT