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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Study diet Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Diet-Induced Changes in GEnetic Material

NCT06252922
View directory record Official record
Conditions
Diet, Healthy, Body Weight, Metabolic Disturbance
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 35 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Sep 13, 2026, 4:03 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cognitive Vitality Pilot Study

NCT07208279
View directory record Official record
Conditions
Aging, Healthy Aging, Cognition, Memory, Brain
Interventions
Axolt Brain Supplement, Bolero - Flavored Drink Placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
55 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
West Palm Beach, Florida
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Sep 13, 2026, 4:03 PM EDT
Completed No phase listed Observational

Chitosan Chewing Gum Study in Dialysis Patients

NCT01770470
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
Chitosan
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Sep 13, 2026, 4:03 PM EDT
Active, not recruiting Not applicable Interventional

The Impact of Whey Protein on Frailty in Older Adults Classified as Pre-frail

NCT07167277
View directory record Official record
Conditions
Pre-frail, Pre-Frail Older Adults, Cognition, Physical Function, Dietary Intake Assessment, MRI
Interventions
Whey Protein, Placebo
Dietary Supplement
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
65 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 13, 2026, 4:03 PM EDT
Terminated Phase 1 Interventional

Genetic Drug Study of Mycophenolic Acid (CellCept) in Pediatric Kidney Transplant Patients

NCT00433953
View directory record Official record
Conditions
Kidney Transplant
Interventions
Mycophenolate Mofetil (CellCept), Dietary Monitoring, Drug Diary, Blood Sampling
Drug · Behavioral · Procedure
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
2 Years to 18 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 19, 2013 · Synced Sep 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Functional Medicine Health Coaching

NCT05551546
View directory record Official record
Conditions
Health Promotion
Interventions
Functional Medicine Health Coaching for Elimination Diet for Elimination Diet, Self-guided Elimination Diet
Behavioral
Lead sponsor
The Institute for Functional Medicine
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Federal Way, Washington
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Sep 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Healthy Living Partnerships to Prevent Diabetes in Veterans Pilot Study

NCT02835495
View directory record Official record
Conditions
Pre-diabetes, Obesity
Interventions
HELP Vets Intervention, Individual Education Program
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years and older
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Salisbury, North Carolina • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 23, 2020 · Synced Sep 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Achieving Blood Pressure Control Together Study

NCT01902719
View directory record Official record
Conditions
Hypertension
Interventions
Community Health Worker (CHW) Intervention, Communication Skills Training, Problem Solving Skills Training
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 1, 2016 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Added Fruit Pomace Fiber, Juice, and Whole Fruit on Postprandial Glycemia

NCT04182971
View directory record Official record
Conditions
Glycemic Index
Interventions
Fruit, Fruit juice, Fruit juice plus fiber
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
20 Years to 45 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 4, 2019 · Synced Sep 13, 2026, 4:03 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A Safety and Efficacy Study of a Nutraceutical in Aging Males With Thinning Hair

NCT06854575
View directory record Official record
Conditions
Hair Thinning
Interventions
Dietary Supplement, Placebo
Dietary Supplement · Other
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
40 Years to 65 Years · Male only
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
3
States / cities
Phoenix, Arizona • Elizabeth, New Jersey • Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Insulin Resistance and Energy Metabolism Through Sleep Extension in Adolescents

NCT03814512
View directory record Official record
Conditions
Sleep, Diabetes Mellitus, Type 2
Interventions
Extended Sleep Intervention
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
13 Years to 19 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Lafayette, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 30, 2024 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Vitamin D-Enriched Mushrooms on Vitamin D Status and Immune Function and Inflammatory Status in Adults

NCT05559112
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D-enriched mushrooms, Study Powder
Other
Lead sponsor
Purdue University
Other
Eligibility
30 Years to 69 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Phase 1 Interventional

Metformin and Omega-3 Fatty Acids in Woman With a History of Early Stage Breast Cancer

NCT02278965
View directory record Official record
Conditions
Stage 0 Breast Carcinoma, Breast Neoplasms, Stage I Breast Carcinoma, Stage II Breast Carcinoma, Stage III Breast Carcinoma
Interventions
Metformin, Omega-3 fatty acids
Drug
Lead sponsor
Katherine D. Crew
Other
Eligibility
21 Years to 75 Years · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2022 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional

A Prolonged Nightly Fasting for Men on ADT for PCa

NCT07462403
View directory record Official record
Conditions
Prostate Cancer
Interventions
Prolonged Nightly Fasting (PNF+), Healthy Diet Text Messaging
Behavioral
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional Results available

Variations in Palatability and Portion Size of Vegetables on Meal Intake of Preschool Children

NCT03926065
View directory record Official record
Conditions
Feeding Behavior
Interventions
Plain Vegetables Served in 100% Portion Size, Plain Vegetables Served in 200% Portion Size, Enhanced Vegetables Served in 100% Portion Size, Enhanced Vegetables Served in 200% Portion Size
Other
Lead sponsor
Penn State University
Other
Eligibility
3 Years to 5 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2020 · Synced Sep 13, 2026, 4:03 PM 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 13, 2026, 4:03 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Postoperative Gastric Point of Care Ultrasound (G-POCUS) in Abdominal Surgery

NCT05796063
View directory record Official record
Conditions
Ileus Postoperative, Postoperative Nausea and Vomiting
Interventions
gastric point of care ultrasound
Diagnostic Test
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Not applicable Interventional

CaREFREE Study (Calorie Restriction, Environment and Fitness: Reproductive Effects Evaluation Study)

NCT02858336
View directory record Official record
Conditions
Hormones
Interventions
NEA, DEA
Behavioral
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 28 Years · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 13, 2026, 4:03 PM EDT
Completed Phase 2 Interventional Results available

Study to Assess the Efficacy, Safety and Tolerability of LCQ908 in NAFLD Patients

NCT01811472
View directory record Official record
Conditions
Non-alcoholic Fatty Liver Disease (NAFLD)
Interventions
LCQ908, placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 74 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
11
States / cities
Mobile, Alabama • San Diego, California • Gainesville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Sep 13, 2026, 4:03 PM EDT