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Showing 1–24 of 44 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Diet Recall Clear all
Completed No phase listed Observational Accepts healthy volunteers

Gut Microbiota Composition in Hispanic and Non-Hispanic Children.

NCT03990350
View directory record Official record
Conditions
Obesity
Interventions
Fecal Sample Collection, Physical Activity Questionnaire, Food Frequency Questionnaire, 24-hour dietary recall diary
Other
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Years to 12 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 29, 2020 · Synced Sep 5, 2026, 11:37 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Military Health and Nutrition Examination Study

NCT06380322
View directory record Official record
Conditions
Hypertension, Type 2 Diabetes, Dyslipidemias, Cardiovascular Diseases
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years and older
Enrollment
648 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
6
States / cities
Fort Carson, Colorado • Hinesville, Georgia • Fort Campbell, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of the Ability of a Supplement to Increase Good Bacteria in the Human Intestine and Blood Sugar Levels

NCT01944904
View directory record Official record
Conditions
Pre-diabetic
Interventions
Sugar Pill, XOS 2.8
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Sep 5, 2026, 11:37 PM EDT
Recruiting Not applicable Interventional

Mediterranean Diet vs no Dietary Intervention for Improving Signs and Symptoms of Psoriasis in Patients Treated With Anti-IL-17 or Anti-IL-23 Inhibitors

NCT06399432
View directory record Official record
Conditions
Psoriasis
Interventions
Mediterranean Diet
Behavioral
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 94 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Recruiting Phase 2 Interventional

A Clinical Trial of Soluble Fiber for Asthma

NCT06372249
View directory record Official record
Conditions
Asthma in Children
Interventions
Inulin
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Terminated No phase listed Observational

Gut Microbiome and Depression

NCT05808101
View directory record Official record
Conditions
Multiple Sclerosis, Depression
Interventions
Neuro-QoL T-score determination
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Factors on Accuracy of Reported Dietary Intake

NCT00939016
View directory record Official record
Conditions
Dietary Assessment, 24-hour Dietary Recall, Dietary Restraint, Social Desirability
Interventions
Lunch meal with 24 hour dietary recall
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Behaviors Learning Task and Sleep

NCT02910648
View directory record Official record
Conditions
Overweight/Obese Population
Interventions
Modified Go/No-Go Task
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
20 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2022 · Synced Sep 5, 2026, 11:37 PM EDT
Recruiting Not applicable Interventional

VCOM Pain Free Research Collaborative

NCT06533345
View directory record Official record
Conditions
Chronic Pain
Interventions
Behavior Change Coaching, Nutrition, Autonomic Recalibration, Dry Needling, Osteopathic Manipulative Treatment, Counseling Psychology, Multiple Treatments
Behavioral · Other · Procedure
Lead sponsor
Edward Via Virginia College of Osteopathic Medicine
Other
Eligibility
21 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Results available

Mi Propio Camino Intervention RCT for Blood Pressure Medication Adherence

NCT04585594
View directory record Official record
Conditions
Hypertension, Medication Adherence
Interventions
Mi Propio Camino (MPC), Habilidades para Controlar la Presion (HCP; Skills for Blood Pressure Control)
Behavioral
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
511 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Phase 1 Interventional

Diet and Behavior in Young Children With Autism

NCT00090428
View directory record Official record
Conditions
Autism, Autistic Disorder
Interventions
Gluten- and casein-free diet, Placebo controlled diet
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
30 Months to 54 Months
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 31, 2013 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Healthy Living Opportunities: Laurel HARVEST

NCT06438003
View directory record Official record
Conditions
Health Knowledge, Attitudes, Practice, Obesity
Interventions
Special Services, Services as Usual
Behavioral · Other
Lead sponsor
Makenzie Barr-Porter
Other
Eligibility
18 Years and older
Enrollment
281 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Alternative Dietary Approaches Online to Promote Tracking

NCT05049005
View directory record Official record
Conditions
Diet Quality, Weight Loss
Interventions
Simplified dietary tracking
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 11, 2022 · Synced Sep 5, 2026, 11:37 PM EDT
Completed No phase listed Observational

National Cancer Institute Food Study

NCT00978406
View directory record Official record
Conditions
Validation Study, Diet Surveys, Nutritional Assessment, Epidemiology, Methodologic Study
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
20 Years to 70 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 2, 2020 · Synced Sep 5, 2026, 11:37 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Controlled Feeding With 24 Hour Recall

NCT06919536
View directory record Official record
Conditions
Evaluate Accuracy 24 Dietary Recall
Interventions
No intervention (observational study)
Other
Lead sponsor
Texas Tech University
Other
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Over-the-counter Dietary Supplements on Kidney Stone Risk

NCT02404701
View directory record Official record
Conditions
Hyperoxaluria
Interventions
Aloe vera with cactus, Cranberry, Green tea extract, Bilberry, Cinnamon, Milk thistle, Turmeric, Aloe vera
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 26, 2016 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Phase 3 Interventional

Precision Medicine Approach for Early Dementia & Mild Cognitive Impairment

NCT05894954
View directory record Official record
Conditions
Mild Cognitive Impairment, Dementia, Mild
Interventions
Precision Medicine Approach, Hormones and Medications tailored to lab tests, combined with devices that support stress management and brain exercises, Standard-of-Care, Lifestyle including diet, exercise, stress management
Dietary Supplement · Combination Product · Behavioral
Lead sponsor
Alzheimer's Prevention and Reversal Project, Inc.
Other
Eligibility
45 Years to 76 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Folsom, California • San Rafael, California • Walnut Creek, California + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Withdrawn No phase listed Observational

Diet, Physical Activity and Body Composition Changes During R-CHOP

NCT04293900
View directory record Official record
Conditions
Non-Hodgkin Lymphoma, DLBCL, Diffuse Large B Cell Lymphoma
Interventions
24-hour dietary recall, Hand grip strength, International Physical Activity Questionnaire, Patient-reported outcomes survey, Pittsburgh Sleep Quality Index, Functional Assessment of Cancer Treatment - Lymphoma, urine sample (optional), fecal sample (optional)
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 5, 2020 · Synced Sep 5, 2026, 11:37 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Astringency and Bitterness Perception

NCT03171402
View directory record Official record
Conditions
Taste Bitter-Salty
Interventions
Astringency and bitterness perception
Diagnostic Test
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 5, 2026, 11:37 PM EDT
Recruiting No phase listed Observational

Quality of Life, Lifestyle, and Psychosocial Factors in Patients With Melanoma

NCT04778449
View directory record Official record
Conditions
Cutaneous Melanoma
Interventions
Medical Chart Review, Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional

Improving Memory for Sleep Treatment Content With Text Messages

NCT02961400
View directory record Official record
Conditions
Sleep Wake Disorders
Interventions
PUSH text messages, PULL text messages, TranS-C, PE
Other · Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
10 Years to 18 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Sep 5, 2026, 11:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Early Childhood Dietary Assessment Study

NCT07227272
View directory record Official record
Conditions
Dietary Assessment
Interventions
Ecological Momentary Assessment, Traditional 24-hour dietary recall
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
2 Years to 5 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Sep 5, 2026, 11:37 PM EDT
Completed Not applicable Interventional

Flipped Classroom for Weight Management

NCT06622278
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Flipped Classroom
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Sep 5, 2026, 11:37 PM EDT
Terminated Not applicable Interventional

Resting Energy Expenditure in Patients With Cystic Fibrosis: A Pilot Study

NCT03699982
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Daily calorie target based on resting energy expenditure
Other
Lead sponsor
CAMC Health System
Other
Eligibility
6 Years to 99 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Nov 17, 2024 · Synced Sep 5, 2026, 11:37 PM EDT