Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 23, 2026, 5:26 PM EDT

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Showing 1–24 of 101 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional

Nutrition for Chronic Daily Headache

NCT01157208
Conditions
Chronic Daily Headache
Interventions
Diet A, Diet B
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Insulin Sensitivity, Lipid Metabolism, Resistant Starch, Potato
Interventions
Potato (Resistant Starch), CHO-matched (Low-fiber, RS-free)
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 74 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boca Raton, Florida
Not yet recruiting Not applicable Interventional

Mediterranean Dietary Intervention for HS

NCT07800416
Conditions
Hidradenitis Suppurativa
Interventions
Mediterranean Diet Counseling, Mediterranean Food Support
Behavioral · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Cancer, Inflammation, Microbiome, Immune Function
Interventions
Whole Foods Plant-Based Diet, Usual Firehouse Diet
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Impact of High Dietary Fiber on Microbiome and Vaccine Responses

NCT05565586
Conditions
Influenza
Interventions
High-Fiber Diet (HFD), Prebiotic Food-Enriched Diet (PreFED)
Dietary Supplement
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
Houston, Texas
Conditions
Diet Modification, Lung Cancer
Interventions
Special Diet Therapy (low-carb), Special Diet Therapy (low-fat), Special Diet Therapy (USDA control)
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Completed Not applicable Interventional Accepts healthy volunteers

The Meals Study for Amyotrophic Lateral Sclerosis and Parkinson's Disease

NCT07625605
Conditions
Amyotrophic Lateral Sclerosis (ALS), Parkinson's Disease (PD)
Interventions
The MIND diet
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
30 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
3
States / cities
Elizabethton, Tennessee • Knoxville, Tennessee
Conditions
Prostate Cancer
Interventions
Whole-food, Plant-Based Diet, General Nutritional Counseling
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
45 Years to 99 Years · Male only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
3
States / cities
Baltimore, Maryland • New York, New York
Completed Not applicable Interventional Accepts healthy volunteers

Active Nutrition Program on Weight Loss

NCT06249698
Conditions
Weight Loss
Interventions
meal replacements and supplements
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Alzheimer Disease
Interventions
Lifestyle medicine
Behavioral
Lead sponsor
Preventive Medicine Research Institute
Other
Eligibility
45 Years to 90 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
4
States / cities
San Diego, California • Sausalito, California • Boston, Massachusetts + 1 more
Conditions
PreDiabetes
Interventions
Whole Prediabetes Diet Intervention
Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
25 Years to 59 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Terminated Not applicable Interventional Accepts healthy volunteers

Energy Expenditure and Substrate Oxidation in a Whole Room Calorimeter

NCT04061369
Conditions
Overweight, Obesity, Body Weight
Interventions
Low fat meal, Moderate fat meal, High fat meal, High fat liquid meal
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Davis, California
Conditions
Multiple Myeloma, Smoldering, Multiple Myeloma, Monoclonal Gammopathy of Undetermined Significance
Interventions
Omega-3, Curcumin, Probiotic, Whole food, plant-based diet (WFPBD)
Dietary Supplement · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Completed Not applicable Interventional Accepts healthy volunteers

Fruit and Vegetable Biomarker Discovery

NCT05621863
Conditions
Biomarkers
Interventions
Aim 1 Meal Challenge 1, Aim 1 Meal Challenge 2, Aim 1 Meal Challenge 3, Aim 2 Typical American Diet, Aim 2 Typical American Diet Plus Test Foods, Aim 2 Dietary Guidelines for Americans Diet Plus Test Foods
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Impact of Dietary Intervention on Inflammation and Microbiome Composition Post-Colonoscopy

NCT06603519
Conditions
Colorectal Polyp, Inflammation, Dietary Intervention, Microbiota, Colorectal Neoplasms, Metabolomics
Interventions
Modified Plant-Based Mediterranean Diet
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Diego, California
Conditions
Healthy
Interventions
Controlled diet
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
25 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Beltsville, Maryland
Terminated Not applicable Interventional

BREATHE-Easy Trial

NCT03200522
Conditions
Asthma
Interventions
Prudent diet, Western diet
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Diabetes Mellitus, Type 1
Interventions
Ketogenic diet, food delivery and education, Standard diet, food delivery and education
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
5 Years to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Pneumonia
Interventions
Ketogenic feeding, Standard feeding
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
55 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Type 2 Diabetes
Interventions
Continuous Glucose Monitor and Undermyfork App, Continuous Glucose Monitor
Other
Lead sponsor
Scripps Whittier Diabetes Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
La Jolla, California
Enrolling by invitation Not applicable Interventional

MTM2MTG Pilot Ancillary Study

NCT07620808
Conditions
Diet, Healthy, HbA1c, Blood Pressure
Interventions
Medically Tailored Groceries
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Conditions
Hypertension, Chronic Kidney Disease
Interventions
DASH Diet, Control Diet
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Multiple Myeloma
Interventions
Lenalidomide, Daratumumab, Questionnaires, Dietary Intervention
Drug · Behavioral · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Processing on Food Reward

NCT06017986
Conditions
Metabolic Diseases
Interventions
Ultra-processed food - Picture Set Meal, Minimally Processed Food - Picture Set Meal
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years to 45 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Roanoke, Virginia