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ClinicalTrials.gov public records Last synced Jul 19, 2026, 10:39 AM EDT

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Showing 1–24 of 606 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Healthy Diet Clear all
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 15, 2020 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Ultraprocessed Food Labels in Chile

NCT06842680
View directory record Official record
Conditions
Diet, Healthy
Interventions
Control, Ultraprocessed warning label
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
3,645 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Eco-labels on Restaurant Menus

NCT06584539
View directory record Official record
Conditions
Nutrition, Food Selection, Food Preferences, Dietary Habits, Healthy Diet
Interventions
Eco-Labels
Behavioral
Lead sponsor
Harvard Pilgrim Health Care
Other
Eligibility
18 Years and older
Enrollment
3,147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Jul 19, 2026, 10:39 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Effects of Dietary Conditions on Drug Response

NCT04315961
View directory record Official record
Conditions
Healthy
Interventions
Blinded drug dose conditions
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 8, 2024 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study on the Tolerability of Dietary Dried Plum

NCT01035372
View directory record Official record
Conditions
Healthy, Elderly
Interventions
dried plum powder
Dietary Supplement
Lead sponsor
University of California, San Francisco
Other
Eligibility
50 Years to 75 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2020 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COMIDAS Comparing Original Mexican Diets and Standard US Diets

NCT01369173
View directory record Official record
Conditions
Healthy
Interventions
Mexican or American foods
Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Daily Time-Restricted Feeding Protocol on Diet Quality

NCT04348019
View directory record Official record
Conditions
Diet, Healthy, Weight Change, Body, Dyslipidemias, Blood Pressure
Interventions
Fasting
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 1, 2021 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Microalgae Extract Phaeosol Combined to Exercise in Healthy Overweight Women : Efficacy on Body Weight Management

NCT04761406
View directory record Official record
Conditions
Overweight and Obesity, Body Weight Changes, Healthy Lifestyle, Exercise, Dietary Supplement
Interventions
Phaeosol group, Placebo group
Dietary Supplement
Lead sponsor
Microphyt
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Availability of Berry Phytonutrients Post-consumption of Fresh and Processed Blueberry by Healthy Adults

NCT04175106
View directory record Official record
Conditions
Healthy
Interventions
a non-traditional (i.e., not typically available in the supermarket) blueberry cultivar bred using natural plant breeding techniques and established as having enhanced nutritive value, a standard commercially available blueberry variety (i.e., cultivar), a "minimally processed" blueberry-rich protein bar, a control beverage of matched-nutritive content
Other
Lead sponsor
North Carolina State University
Other
Eligibility
25 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 19, 2026, 10:39 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Maximizing Nutrition Education to Meet Dietary and Food Security of Children and Parents

NCT05196763
View directory record Official record
Conditions
Nutrition, Healthy, Hunger, Diet, Healthy, Food Habits
Interventions
the Supplemental Nutrition Assistance Program-Education
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
5 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Grocery Assistance Program Study for Families

NCT03363048
View directory record Official record
Conditions
Nutritional Quality, Food Insecurity, Food Legislation, Healthy Diet, Food Stamp Program
Interventions
Restricted, Restriction plus Incentive
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
3 Years and older
Enrollment
646 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 9, 2020 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing Adoption of Fruits and Vegetables Into Family Diet

NCT04827654
View directory record Official record
Conditions
Diet, Healthy
Interventions
Weekly produce box and gift card
Dietary Supplement
Lead sponsor
University of Texas at Austin
Other
Eligibility
4 Years to 11 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
7
States / cities
Austin, Texas • Elgin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Jul 19, 2026, 10:39 AM EDT
Recruiting Not applicable Interventional

Time-restricted Eating and Healthy Eating in Patients With Metabolic Liver Disease or Cancer

NCT06824974
View directory record Official record
Conditions
Liver Cancer, Adult, MASH - Metabolic Dysfunction-Associated Steatohepatitis, Obesity and Overweight
Interventions
Time-restricted eating plus healthy diet
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Phase 2 Interventional

IT-Supported Early Treatment Of Childhood Overweight

NCT01188616
View directory record Official record
Conditions
Childhood Obesity, Technology Based Obesity Intervention
Interventions
Telephone Linked Care-HEAT (TLC-HEAT)
Behavioral
Lead sponsor
Boston Medical Center
Other
Eligibility
9 Years to 12 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 24, 2010 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Results available

Research Intervention to Support Healthy Eating and Exercise

NCT04353258
View directory record Official record
Conditions
Obesity
Interventions
Behavioral Economics intervention (BE mHealth), Standard mHealth intervention (mHealth)
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 75 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Dietary Supplement on Exercise Performance in Healthy Older Adults"

NCT01073332
View directory record Official record
Conditions
Excessive Physical Exercise, Unspecified
Interventions
Arginine antioxidant supplements, Placebo
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Jul 19, 2026, 10:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Sulfur Amino Acid Depletion and Acetaminophen on Plasma Glutatione

NCT00228644
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Months to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2009 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Phase 2 Interventional

The Healthy Life Choices Project in HIV-Positive Patients

NCT00017810
View directory record Official record
Conditions
Diarrhea, HIV Infections
Interventions
Dietary intervention, HIV Self-Care
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2003
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Jul 19, 2026, 10:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Maternal Risk Factors for Autism Spectrum Disorders: A Case-Control Approach

NCT05453708
View directory record Official record
Conditions
Autism, Autism Spectrum Disorder, Autistic Disorder, Pregnancy Related, Diet, Healthy, Diet; Deficiency, Folate Deficiency, Folic Acid Deficiency, Folic Acid Overdose
Interventions
Survey
Other
Lead sponsor
Walden University
Other
Eligibility
18 Years and older · Female only
Enrollment
239 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 19, 2023 · Synced Jul 19, 2026, 10:39 AM EDT
Recruiting Not applicable Interventional

Promoting Intergenerational Health in Rural Kentuckians With Diabetes (PIHRK'D)

NCT06080425
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Medical Nutrition Therapy
Behavioral
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Intermittent Fasting, Clean Ketogenic Diet, and Their Combined Effects on Body Composition, Cardiometabolic Markers, and Metabolic Health

NCT07659093
View directory record Official record
Conditions
Healthy, Ketogen-based Therapeutic Diet, Metabolic Abnormalities
Interventions
Diet
Other
Lead sponsor
The University of Tennessee at Martin
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Martin, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 19, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Supplementation to Increase Serum Choline Levels

NCT02403804
View directory record Official record
Conditions
Healthy
Interventions
Phosphatidylcholine, Betaine (588 mg qam and 412 mg qpm), Betaine (1000 mg BID)
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Jul 19, 2026, 10:39 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of SlimBiotics L. Fermentum K8 Postbiotic on Weight Management and Metabolic Health Outcomes

NCT05912699
View directory record Official record
Conditions
Metabolic Health, Weight Loss, Stress, Well-Being, Psychological, Sleep, Healthy Eating
Interventions
Slimbiotics Postbiotic, Placebo
Other
Lead sponsor
Slimbiotics
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Jul 19, 2026, 10:39 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Study to Investigate the Efficacy of a Digestive Health Dietary Supplement on Post-meal Bloating in Healthy Participants

NCT07516587
View directory record Official record
Conditions
Digestive Health, Abdominal Discomfort, Gas and Bloating
Interventions
Bloat Gummies, Placebo
Dietary Supplement
Lead sponsor
Arrae
Industry
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 19, 2026, 10:39 AM EDT