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Showing 1–24 of 165 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Whole grain diet Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

The Precision Nutrition New York Study

NCT06777498
View directory record Official record
Conditions
Body Composition Changes, Body Weight Changes
Interventions
Whole Grain Intervention then fruits and vegetables, Fruit and Vegetable Intervention and then whole grains
Other
Lead sponsor
Cornell University
Other
Eligibility
21 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Sep 23, 2026, 4:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The CARING Study: Creating and Restoring Health Through Nutrition Guidance

NCT05795439
View directory record Official record
Conditions
Type2diabetes, Type 2 Diabetes Treated With Insulin
Interventions
Low-fat, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Barley and Rice Mixture Effects on Blood Glucose

NCT03387345
View directory record Official record
Conditions
Blood Glucose, Dietary Fiber, Hunger
Interventions
100% steel cut barley, 100% barley flakes, 50/50 rice-barley mix, 80/20 rice-barley mix, 100% rice, white bread
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 50 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 1, 2018 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Effect of Food Processing and Sweeteners on Glycemic and Metabolic Measures

NCT05658757
View directory record Official record
Conditions
Blood Sugar; High, Blood Pressure, Dietary Habits
Interventions
Regular sweetened commercial foods, Allulose sweetened commercial foods, Whole and minimally processed and sweetened foods
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
20 Years to 99 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional

Nutrition for Chronic Daily Headache

NCT01157208
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean-like Unprocessed (CLEAN-MED) Diet Intervention Study of the Gut Microbiome of Healthy Adults

NCT05411120
View directory record Official record
Conditions
Diet Therapy
Interventions
Western Diet, CLEAN-MED
Other
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Not yet recruiting Not applicable Interventional

Mediterranean Dietary Intervention for HS

NCT07800416
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Improving Dietary Quality Through Animal Source Protein Accessibility in a Low-Resource Setting

NCT07620028
View directory record Official record
Conditions
Nutrition Intervention, Healthy Eating, Diet, Healthy, Hunger, Food Security
Interventions
Nutrition Secure Indianapolis Food Box Intervention, Nutrition Secure Indianapolis Nutrition Education
Other · Behavioral
Lead sponsor
Purdue University
Other
Eligibility
5 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Food Market Cluster Randomized Trial

NCT05672186
View directory record Official record
Conditions
Healthy Diet, Nutrition, Healthy
Interventions
Full-service market intervention, No intervention
Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Sep 23, 2026, 4:07 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Impact of High Dietary Fiber on Microbiome and Vaccine Responses

NCT05565586
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Recruiting Not applicable Interventional

A Study of the MIND Diet for Persons With Multiple Sclerosis

NCT06992115
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) Diet, Small Group
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Phase 3 Interventional

Workplace-Sponsored Diet and Exercise Program to Reduce Obesity

NCT00123526
View directory record Official record
Conditions
Obesity, Cardiovascular Diseases, Heart Diseases
Interventions
Diet, Physical Activity
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 65 Years
Enrollment
899 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 23, 2013 · Synced Sep 23, 2026, 4:07 PM EDT
Terminated Not applicable Interventional

Reducing Insulin, Growth Hormones, and Tumors

NCT03785808
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Is MyPlate Approach to Helping Overweight Patients Lose Weight More Patient-centered?

NCT02514889
View directory record Official record
Conditions
Obesity
Interventions
Calorie-counting, MyPlate
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
261 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Long Beach, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 19, 2017 · Synced Sep 23, 2026, 4:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Sleep2BWell Trial

NCT06565104
View directory record Official record
Conditions
Blood Pressure, Sleep Health, Diet, Healthy, Physical Activity, Weight Loss
Interventions
Multidimensional Sleep Health Sessions, Healthy Diet Sessions, Physical Activity Sessions
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Dietary Added-Sugar Consumption During the Transition to College

NCT05823597
View directory record Official record
Conditions
Dietary Added Sugar Consumption
Interventions
Sugar Intensive Treatment, General Health Control
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
702 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 23, 2026, 4:07 PM EDT
Not listed Not applicable Interventional

Healthy Heart Score Intervention In the Primary Care Setting

NCT03482427
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Healthy Heart Score
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Dublin, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

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

NCT07625605
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Recruiting Not applicable Interventional

Lifestyle Intervention of Food and Exercise for Lymphoma Survivors

NCT05839210
View directory record Official record
Conditions
Non Hodgkin Lymphoma, Hodgkin Lymphoma
Interventions
LIFE-L Mediterranean Diet, LIFE-L Home-Based Exercise Program, Supportive Materials
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional

BfedBwell Proof-of-Concept Pilot

NCT06191666
View directory record Official record
Conditions
Cancer Survivorship, Obesity, Overweight
Interventions
Group-based education and discussion, Individual 1:1 counseling, Group based behavioral skills development and cooking demonstrations, BfitBwell
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Active, not recruiting Not applicable Interventional

Whole-Food Plant-Based Diet to Control Weight and MetaboInflammation in Overweight/Obese Men With Prostate Cancer

NCT05471414
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Harvesting Health: Advancing Nutrition and Wellness for Moms and Babies

NCT07659821
View directory record Official record
Conditions
Pregnant Women With Singleton Pregnancies
Interventions
Food Kit
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
3
States / cities
College Station, Texas • Dallas, Texas • Mansfield, Texas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 23, 2026, 4:07 PM EDT
Not listed Not applicable Interventional

Can Lifestyle Changes Reverse Early-Stage Alzheimer's Disease

NCT04606420
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 14, 2022 · Synced Sep 23, 2026, 4:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The OHSU Pregnancy Exercise & Nutrition (PEN) Program

NCT01719406
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Intervention, behavioral lifestyle education
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 14, 2014 · Synced Sep 23, 2026, 4:07 PM EDT