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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Diet Clear all
Completed Not applicable Interventional

Promoting Activity and Changes in Eating (PACE) to Reduce Obesity

NCT00119782
View directory record Official record
Conditions
Obesity, Cardiovascular Diseases, Heart Diseases
Interventions
Diet, Exercise, Environment
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 70 Years
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 22, 2012 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional

Rural Lifestyle Intervention Treatment Effectiveness Trial

NCT00912652
View directory record Official record
Conditions
Obesity
Interventions
lifestyle intervention, Health Education Control
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 75 Years
Enrollment
612 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
8
States / cities
Bronson, Florida • Bunnell, Florida • Cross City, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 16, 2026, 8:25 AM EDT
Not listed Phase 2 Interventional

Phase II Study of Dietary Cholesterol for Smith-Lemli-Opitz Syndrome

NCT00004347
View directory record Official record
Conditions
Smith-Lemli-Opitz Syndrome
Interventions
diet
Behavioral
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
0 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1995
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional

Preparing a Food is Medicine Intervention to Promote Healthy Eating and Blood Pressure Control

NCT05796648
View directory record Official record
Conditions
Hypertension, Obesity, Healthy Nutrition, Blood Pressure
Interventions
RN-CHeFRx
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Sep 16, 2026, 8:25 AM EDT
Terminated Phase 4 Interventional Results available

Accelerated Atherosclerosis in High Risk Population Groups: An Assessment by Magnetic Resonance Imaging

NCT02114697
View directory record Official record
Conditions
Atherosclerosis
Interventions
Statin therapy, Lifestyle modification
Drug · Behavioral
Lead sponsor
Emory University
Other
Eligibility
22 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Phase 4 Interventional Results available

Use of Patiromer to Transition Chronic Kidney Disease Patients With Hyperkalemia to a Plant-rich Diet.

NCT03183778
View directory record Official record
Conditions
Chronic Kidney Diseases, Hyperkalemia
Interventions
Patiromer, Research Diet Menu
Drug · Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 30, 2021 · Synced Sep 16, 2026, 8:25 AM 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 22, 2026 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Parent-Child Dieting Plans Incorporating Medifast Meal Replacements for Weight Loss

NCT00198744
View directory record Official record
Conditions
Obesity
Interventions
Medifast FIT! for Kids, standard recommendations for dietary intake in children, both diet plans with and without a parent dieting
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
8 Years to 15 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 19, 2005 · Synced Sep 16, 2026, 8:25 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pharmacokinetics and Pharmacodynamics of Fructose

NCT00661947
View directory record Official record
Conditions
Healthy
Interventions
Dr Pepper sweetened with sucrose or high fructose corn syrup
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 15, 2012 · Synced Sep 16, 2026, 8:25 AM EDT
Completed No phase listed Observational

Early Life Factors and Respiratory Health in Mexico City Children

NCT00342758
View directory record Official record
Conditions
Respiratory Ilness
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
Not listed
Enrollment
6,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 16, 2026, 8:25 AM EDT
Enrolling by invitation Not applicable Interventional

Plant-Focused Nutrition in Patients With Diabetes and Chronic Kidney Disease

NCT05514184
View directory record Official record
Conditions
Chronic Kidney Disease (CKD) With Diabetes Mellitus (DM), CKD Stage 3, CKD Stage 4, CKD Stage 5, Diabetes Mellitus, Diabetic Kidney Disease
Interventions
PLAFOND diet
Dietary Supplement
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Orange, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Brain Dopamine Function in Human Obesity

NCT03648892
View directory record Official record
Conditions
Obesity, Healthy Volunteers, Overweight
Interventions
[c11] raclopride, [18F]fallypride
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fat Metabolism in Response to Acute Diet- and Exercise-induced Changes in Energy Balance

NCT00830999
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Positive energy balance, Energy balance with exercise, Negative energy balance, Negative energy balance with exercise, Energy balance
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years to 50 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 20, 2013 · Synced Sep 16, 2026, 8:25 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Salt-Sensitivity and Immunity Cell Activation

NCT03753204
View directory record Official record
Conditions
High Blood Pressure, Salt; Excess, Inflammation
Interventions
Furosemide 40 mg
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Phase 2 Interventional Results available

Micronutrient Supplementation in Children With ASD

NCT05268744
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Micronutrient
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
5 Years to 22 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 16, 2026, 8:25 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cottonseed Oil Versus Matched PUFA Effects

NCT06382298
View directory record Official record
Conditions
Dyslipidemia, Overweight and Obesity, Nutrition, Healthy
Interventions
COTTONSEED OIL, MATCHED PUFA DIET, CONTROL
Other
Lead sponsor
University of Georgia
Other
Eligibility
25 Years to 75 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 16, 2026, 8:25 AM EDT
Recruiting No phase listed Observational

Impact of Dietary Inflammatory Potential on Breast Cancer Risk

NCT05178498
View directory record Official record
Conditions
Breast Atypical Ductal Hyperplasia, Breast Atypical Lobular Hyperplasia, Breast Carcinoma, Breast Lobular Carcinoma In Situ, Breast Sclerosing Adenosis
Interventions
Follow-Up, Physical Examination, Questionnaire Administration
Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
960 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2035
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 16, 2026, 8:25 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Oxalate Formation From Ascorbic Acid

NCT04603898
View directory record Official record
Conditions
Kidney Stone
Interventions
Low Oxalate Diet, Carbon-13 Ascorbic Acid Oral Load
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Evaluation of Zinc Status Biomarkers

NCT02861352
View directory record Official record
Conditions
Inflammation, Oxidative Stress
Interventions
Diet zinc
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Sep 16, 2026, 8:25 AM EDT
Not yet recruiting Not applicable Interventional

MM-CARE: Cardiovascular Risk Assessment in Adults With Multiple Myeloma

NCT07783607
View directory record Official record
Conditions
Multiple Myeloma, Heart Disease Risk Factors
Interventions
Oncology-Embedded Cardiovascular Risk Assessment Pathway, Primary Care Provider-Directed Cardiovascular Risk Assessment Pathway
Other
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2028
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Community-based Hepatitis B Interventions for Hmong Adults

NCT00888407
View directory record Official record
Conditions
Liver Cancer
Interventions
HBV Screening - Small group educational session, Nutrition - Small group educational session
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 64 Years
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Results available

The Effects of an Antioxidant Formulation on Ocular Blood Flow

NCT01930487
View directory record Official record
Conditions
Primary Open Angle Glaucoma
Interventions
dietary supplement with antioxidants, Placebo
Dietary Supplement
Lead sponsor
ScienceBased Health
Industry
Eligibility
30 Years to 70 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 4, 2016 · Synced Sep 16, 2026, 8:25 AM EDT
Terminated Not applicable Interventional

PB125, Osteoarthritis, Pain, Mobility, and Energetics

NCT04638387
View directory record Official record
Conditions
Osteoarthritis, Knee, Muscle Weakness, Pain, Joint
Interventions
PB125, Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
50 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Sep 16, 2026, 8:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

ONE PATH: Optimizing Nutrition Education for Parents and Teachers for Healthy Growth

NCT03817021
View directory record Official record
Conditions
Childhood Obesity, Self-regulation, Appetite Regulation
Interventions
ECE Provider, Parent Intervention, Child intervention
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
2 Years to 6 Years
Enrollment
1,461 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 16, 2026, 8:25 AM EDT