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ClinicalTrials.gov public records Last synced Oct 20, 2026, 5:38 PM EDT

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Showing 1–24 of 1,136 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Dietary Carbohydrate Clear all
Recruiting Not applicable Interventional

Metabolic Impact and Compliance of Controlled, Varying, Mediterranean Diets in Pre-Surgical Prostate Cancer Populations (PROVISIONS)

NCT06487507
View directory record Official record
Conditions
Prostate Cancer
Interventions
Low fat diet, Lower carbohydrate diet
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 80 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional Results available

Cryovagotomy Diabetes Trial

NCT04276051
View directory record Official record
Conditions
Diabetes Type 2, Diabetes Mellitus, Obesity
Interventions
Cryoablation of the Vagus Nerve, Lifestyle Intervention
Device · Behavioral
Lead sponsor
Emory University
Other
Eligibility
22 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
5
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 8, 2023 · Synced Oct 20, 2026, 5:38 PM EDT
Active, not recruiting Not applicable Interventional

Functional Outcomes From Diets in Multiple Sclerosis

NCT05327322
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis, Secondary Progressive Multiple Sclerosis
Interventions
Glycemic load, Calorie restriction, Behavioral support
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Birmingham, Alabama • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Community-based Study to Target Childhood Obesity

NCT02890056
View directory record Official record
Conditions
Obesity
Interventions
H2GO!
Behavioral
Lead sponsor
Boston University
Other
Eligibility
9 Years to 12 Years
Enrollment
207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 12, 2019 · Synced Oct 20, 2026, 5:38 PM 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 24, 2022 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Ketogenic Diet for Child Epilepsy and Seizure Control

NCT00004729
View directory record Official record
Conditions
Epilepsy, Seizures, Lennox-Gastaut Syndrome
Interventions
Ketogenic diet
Behavioral
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
1 Year to 10 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1997
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 22, 2006 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Brain Small Chain Fatty Acid Metabolism in Bipolar Disorder: Ketones

NCT06335875
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Ketone Ester Beverage, Low Glycemic Index Diet
Dietary Supplement · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 12, 2025 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Effects of Almonds on Insulin Sensitivity in Prediabetes

NCT03126981
View directory record Official record
Conditions
PreDiabetes
Interventions
1.5 oz of whole, natural almonds, Low-fat, high refined starches/sugars
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 69 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Boca Raton, Florida • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2019 · Synced Oct 20, 2026, 5:38 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Lactoferrin-enriched Whey on Iron Status in Females

NCT06232642
View directory record Official record
Conditions
Serum Ferritin
Interventions
Lactoferrin, iron and B12 in Whey Protein, Lactoferrin, Iron and B12 in Rice Protein, Lactoferrin, Iron and B12 in Maltrodextrin
Dietary Supplement
Lead sponsor
Utah State University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Effects of Prebiotic Supplementation and Exercise on Inflammatory Markers, Vascular Function and Cognition in CKD

NCT03689569
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Resistant starch, Exercise, Starch
Dietary Supplement · Behavioral
Lead sponsor
Springfield College
Other
Eligibility
30 Years to 75 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Novel Food Product Containing Microbiota Accessible Carbohydrates on the Human Microbiome

NCT03058575
View directory record Official record
Conditions
Gut Microbiome
Interventions
Dietary MACs, Control
Dietary Supplement · Other
Lead sponsor
Access Business Group
Industry
Eligibility
40 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Determining the Ergogenic Effects of Carb10™ Supplementation on Carbohydrate-Rich and Carbohydrate-Restricted Diets

NCT03231514
View directory record Official record
Conditions
Ketogenic Dieting
Interventions
Carbohydrate Supplement (Carb10), Diet, Exercise
Dietary Supplement · Other
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years to 30 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Denton, Texas
Source: ClinicalTrials.gov public record
Updated Feb 20, 2018 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Development of Self-Regulation in Individuals With Type 2 Diabetes

NCT00941447
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Dietary, Physical Activity, Self-Regulatory Approaches
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
21 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 20, 2026, 5:38 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Effect of Oral Alpha-Cyclodextrin on Fecal Fat Excretion

NCT01910558
View directory record Official record
Conditions
Obesity, Cardiovascular Disease
Interventions
Alpha-cyclodextrin and digestible starch, Alpha-cyclodextrin, Digestible starch
Dietary Supplement
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 27, 2016 · Synced Oct 20, 2026, 5:38 PM EDT
Completed No phase listed Observational

Effect of Viscous Fiber on Postprandial Kalemic Response in Hemodialysis Patients

NCT05086185
View directory record Official record
Conditions
Hyperkalemia, Chronic Kidney Disease Requiring Chronic Dialysis
Interventions
Kalemic Response to Orange Juice, Kalemic Response to Orange Juice with Fiber
Diagnostic Test · Dietary Supplement
Lead sponsor
University of Nevada, Reno
Other
Eligibility
18 Years to 89 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Reno, Nevada
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

EMPOWIR:Enhance the Metabolic Profile of Women With Insulin Resistance

NCT00618072
View directory record Official record
Conditions
Hyperinsulinemia, Insulin Resistance, Obesity
Interventions
metformin and rosiglitazone
Drug
Lead sponsor
New York Medical College
Other
Eligibility
35 Years to 55 Years · Female only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 28, 2014 · Synced Oct 20, 2026, 5:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Food and Circadian Timing

NCT04743271
View directory record Official record
Conditions
Diet, High-Fat, Circadian Rhythm
Interventions
High-Fat Diet, Low-Fat Diet
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Obesity Risk in African American Women is Determined by a Diet-by-phenotype Interaction

NCT03499509
View directory record Official record
Conditions
Diet Modification
Interventions
Low Glycemic Diet, High Glycemic Diet
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 65 Years · Female only
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Not applicable Interventional

Dietary Intervention in Type-2 Diabetes and Pre-Diabetes

NCT02519309
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Pre-diabetes, Metabolic Syndrome
Interventions
Virta Program
Other
Lead sponsor
Virta Health
Industry
Eligibility
21 Years to 65 Years
Enrollment
465 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 27, 2022 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparing Over-the-counter Dry Mouth Remedies After Radiation

NCT00595933
View directory record Official record
Conditions
Xerostomia
Interventions
sugar-free chewing gum, chewing gum, mouth rinse, mouth spray
Other · Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
13 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Sep 7, 2022 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

Examining the Effects of Diet on Health With an Online Program

NCT01967992
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Behavioral: Low Carbohydrate, Ketogenic Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Oct 20, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

A Pilot Study of the Effects of Diet and Behavioral Interventions on Health in Diabetics

NCT01713764
View directory record Official record
Conditions
Diabetes Type II
Interventions
Low Carbohydrate Diet, American Diabetes Association Diet, Mindfulness and Positive Affect Skills
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 30, 2013 · Synced Oct 20, 2026, 5:38 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 12, 2019 · Synced Oct 20, 2026, 5:38 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Prediabetes Stratification by Multi-omics Profile After Food Intake

NCT06005051
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, PreDiabetes
Interventions
Dietary intervention
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Oct 20, 2026, 5:38 PM EDT