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

A Nutrition Intervention for Arthritis -4 (WCCR-ARTH4)

NCT03580681
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Plant-based diet, Supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 90 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Portion Control Treatment for Obesity

NCT01451554
View directory record Official record
Conditions
Obesity
Interventions
portion control plate, Usual Care
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 27, 2011 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Results available

A Trial to Determine Weight Gain Benefits of Caloric Supplementation for NAS Infants

NCT04419857
View directory record Official record
Conditions
Neonatal Abstinence Syndrome
Interventions
High-calorie formula
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
Not listed
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Controlled Feeding Experiment

NCT00951756
View directory record Official record
Conditions
Effect of Diet on Microbiome Composition
Interventions
High fat diet
Other
Lead sponsor
James Lewis
Other
Eligibility
18 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 24, 2013 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

The DIVINE Study: DIetary Management of Glucose VarIability iN thE ICU

NCT02337556
View directory record Official record
Conditions
Critically Ill Mechanically Ventilated Subjects
Interventions
Peptamen Bariatric, Replete
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
6
States / cities
Atlanta, Georgia • Chicago, Illinois • Lexington, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Sep 14, 2026, 1:46 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 Sep 14, 2026, 1:46 AM EDT
Recruiting Not applicable Interventional

Diet Order Effects of Low Fat vs. Low Carb Diets on Body Fat Change

NCT06325722
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Low-carbohydrate Diet, Low-fat Diet
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated Not applicable Interventional Results available

Increasing Cure Rate of Hepatitis C Therapy in Obese Hepatitis C Patients

NCT00871845
View directory record Official record
Conditions
Obesity, Insulin Resistance, Metabolic Syndrome, Hepatitis C
Interventions
Dietary and Lifestyle modification educational sessions
Behavioral
Lead sponsor
Hossam Kandil
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 4, 2018 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Phase 1Phase 2 Interventional

The University of Michigan OWL (Online Wellness and Lifestyle) Study

NCT05010083
View directory record Official record
Conditions
Obesity
Interventions
diet and lifestyle program
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 25 Years
Enrollment
17 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 Oct 23, 2022 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Phase 2 Interventional

Antifolate Effectiveness in Arthritis

NCT00000395
View directory record Official record
Conditions
Rheumatoid Arthritis, Adjuvant Arthritis
Interventions
Methotrexate, Folinic acid, Folic acid
Drug · Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2002
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Dec 15, 2016 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

Study Evaluating the Ketogenic Diet in Patients With Metastatic Pancreatic Cancer

NCT04631445
View directory record Official record
Conditions
Metastatic Pancreatic Ductal Adenocarcinoma
Interventions
Ketogenic Diet
Other
Lead sponsor
Translational Drug Development
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
6
States / cities
Scottsdale, Arizona • Los Angeles, California • Danbury, Connecticut + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Sep 14, 2026, 1:46 AM EDT
Suspended Not applicable Interventional

Ketogenic Dietary Intervention to Improve Response to Immunotherapy in Patients With Metastatic Melanoma and Metastatic Kidney Cancer

NCT06391099
View directory record Official record
Conditions
Clinical Stage IV Cutaneous Melanoma AJCC v8, Metastatic Cutaneous Melanoma, Metastatic Renal Cell Carcinoma, Stage IV Renal Cell Cancer AJCC v8
Interventions
Best Practice, Biospecimen Collection, Computed Tomography, Dietary Intervention, Educational Activity, Glucose Measurement, Ketone Measurement, Questionnaire Administration
Other · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Enrolling by invitation Not applicable Interventional

Promoting Nutrition Security and Chronic Disease Management Through a Produce Prescription Program

NCT07117201
View directory record Official record
Conditions
Dietary Intervention, Produce Prescription, Chronic Disease Management, Social Needs Screening
Interventions
Culturally Tailored Cooking Classes, Prescription Produce Plan
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

Ketogenic Diet to Improve Neuro-recovery

NCT03509571
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Ketogenic Diet, Standard Diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
19 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Phase 2 Interventional

Remotely Administered Diet Intervention to Impact Symptom Burden in Myeloproliferative Neoplasm

NCT04744974
View directory record Official record
Conditions
Myeloproliferative Neoplasm
Interventions
Diet intervention
Behavioral
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Dietary Fat When Eaten With Fructose Versus Glucose

NCT01061346
View directory record Official record
Conditions
Body Weight Changes
Interventions
40% Fat Diet, 20% Fructose Beverage, 20% Glucose Beverage
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
28 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 24, 2016 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing the Feasibility and Preliminary Effect of Summer Camp

NCT04085965
View directory record Official record
Conditions
Childhood Obesity Prevention
Interventions
Boys and Girls Club summer day camp
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
6 Years to 12 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 10, 2019 · Synced Sep 14, 2026, 1:46 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating the Effects of Beef Consumption on Cognitive and Brain Health

NCT06690892
View directory record Official record
Conditions
Dietary Intervention, Dietary Proteins, Dietary Assessment, Cognitive Ability, General
Interventions
Ready-to-eat beef in frozen, 5-oz packages, Ready-to-eat beef in frozen, 1-oz packages
Dietary Supplement
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
19 Years to 24 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gut Health Response to Dietary Fiber

NCT01321736
View directory record Official record
Conditions
Dietary Fiber
Interventions
dietary fiber
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 5, 2013 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

Pragmatic Research in Healthcare Settings to Improve Diabetes and Obesity Prevention and Care for Our Program

NCT04420936
View directory record Official record
Conditions
Diabetes, Weight Loss, Diet Habit
Interventions
MAINTAIN PRIME Lifestyle Coaching, Control tracking
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 75 Years
Enrollment
269 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 28, 2025 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Consuming Red Meat on the Gut Microbiota in Young Adults

NCT03885544
View directory record Official record
Conditions
Diet Modification
Interventions
Controlled Lacto-ovo vegetarian diet, Controlled Unprocessed red meat diet, Controlled processed red meat diet
Other
Lead sponsor
Purdue University
Other
Eligibility
20 Years to 35 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Biodistribution of [11C]Acetoacetate/[18F]Fluorodeoxyglucose in Subjects With Risk Factors for Alzheimer's Disease

NCT03130036
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
[11C]Acetoacetate[18F]Fluorodeoxyglucose positron emission tomography scan
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years to 85 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

The Healthy Eating Choices for Life Program

NCT01096719
View directory record Official record
Conditions
Obesity
Interventions
Standard Behavioral Weight Loss Intervention, Dietary Goal: Reduction in Energy Density of Dietary Intake, Dietary Goal: Reduction of Energy Intake
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
21 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 14, 2026, 1:46 AM EDT