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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Diet composition 3 Clear all
Recruiting Not applicable Interventional

Metabolic Impact of Prospective Controlled Mediterranean Type Diets on Prostate Cancer

NCT05590624
View directory record Official record
Conditions
Prostate Cancer
Interventions
Lower-Carbohydrate Med-t-Diet, Low-Fat Med-t-Diet
Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Personalized Responses to Dietary Composition Trial 3

NCT04735835
View directory record Official record
Conditions
Diabetes, Heart Diseases, Diet Habit, Diet Modification, Healthy, Obesity, Metabolism, Microbial Colonization
Interventions
Dietary Intervention
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
18 Years and older
Enrollment
250,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Sep 22, 2026, 4:04 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Healthy Options At Pantries (HOAP) Study

NCT07729436
View directory record Official record
Conditions
Food Choice, Implementation Science, Food Insecurity, Diet, Healthy, Behavioral Economics
Interventions
Behavioral economics-based Healthy Options At Pantries (HOAP) digital nudge intervention
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Variation in Urine Electrolytes, pH and Specific Gravity Throughout the Day

NCT03645785
View directory record Official record
Conditions
Healthy
Interventions
Normal fluid intake without true lemon, Double fluid intake plus 3 bottles of water with True Lemon
Dietary Supplement
Lead sponsor
Adam Howe, MD
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Sep 22, 2026, 4:04 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Flourish: Exploring the Early Infant Gut Microbiome

NCT07333482
View directory record Official record
Conditions
Microbiota, Gut Microbiome, Eczema, Microbiome
Interventions
Tailored Recommendations, Consult Call, Educational Email Series
Dietary Supplement · Behavioral
Lead sponsor
Seeding Inc
Industry
Eligibility
0 Months to 3 Months
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
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 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Body Worlds 3 Nutrition Display

NCT00669500
View directory record Official record
Conditions
Obesity, Hyperlipidemia
Interventions
Lifestyle intervention
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
Not listed
Enrollment
3,188 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 27, 2011 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Compare Effects of a Soluble Fiber on Weight and Blood Cholesterol

NCT00682916
View directory record Official record
Conditions
Obesity
Interventions
Y288
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Early Phase 1 Interventional

Impact of Probiotics on Oral Microbiota in Older Adults With Dysphagia

NCT03682094
View directory record Official record
Conditions
Dysphagia
Interventions
VSL#3
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
65 Years to 99 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Child Health Initiative for Lifelong Eating and Exercise (CHILE)

NCT00428805
View directory record Official record
Conditions
Obesity
Interventions
classroom curriculum, In-service training for Head Start teachers/aides, Training for Head Start food service, Family intervention component, Food source, Health care providers, CHILE Head Start Intervention
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
3 Years to 5 Years
Enrollment
980 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 4, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Active, not recruiting Not applicable Interventional

Investigating Metabolic and Psychological Adaptations in a Clinical Trial

NCT06800794
View directory record Official record
Conditions
Obesity and Type 2 Diabetes
Interventions
Behavioral Skill Training, Meal Provisioning
Behavioral · Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Not listed Not applicable Interventional

Effect of a Fasting Mimicking Diet on Patients With Multiple Sclerosis (FMDMS)

NCT06515782
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Med Diet. Investigators would like to see what differences a Mediterranean Diet makes to the status of patients with Multiple Sclerosis.
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Terminated Not applicable Interventional

Effect of Meal Composition and Timing Modification on Glucose Metabolism, Body Temperature and Sleep

NCT05413928
View directory record Official record
Conditions
PreDiabetes, Type 2 Diabetes, Healthy
Interventions
Time Restrictive Eating- late, Time Restrictive Eating- early, Time Restrictive Eating- early with early caloric intake, Macronutrient-controlled meals
Behavioral · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

L. Acidophilus (Strain TW01) on Gut Health, Body Composition, and Inflammation

NCT06912100
View directory record Official record
Conditions
Overweight (BMI > 25), Obese, Otherwise Healthy Volunteers
Interventions
Placebo, Probiotic
Dietary Supplement
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Not listed Not applicable Interventional

The Effect of a High Fiber Diet and High-Intensity Interval Exercise in Patients With HFpEF

NCT05236413
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction
Interventions
High Intensity Interval Exercise, Dietary Approaches to Stop Hypertension (DASH) Diet, Exercise + DASH Diet
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
40 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 6, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Lifestyle Intervention for the Reduction of Breast Cancer Risk in Normal Weight Women

NCT04267796
View directory record Official record
Conditions
Breast Carcinoma
Interventions
Aerobic Exercise, Dietary Intervention, Quality-of-Life Assessment, Questionnaire Administration, Resistance Training
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
50 Years to 69 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional

EXERT-BCN: an Exercise and Nutrition Regimen to Designed to Improve Body Composition After Treatment for Breast Cancer

NCT05978960
View directory record Official record
Conditions
Breast Cancer
Interventions
Nutrition and resistance training exercise intervention
Other
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Independent and Combined Effects of Resistance Exercise Training and β-hydroxy β-methylbutyrate Plus Vitamin D

NCT03848741
View directory record Official record
Conditions
Aging, Skeletal Muscle
Interventions
Non-Exercise Control, Resistance Exercise Training, Placebo, HMB+VitD
Behavioral · Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
45 Years to 60 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Sep 22, 2026, 4:04 PM EDT
Enrolling by invitation Phase 2 Interventional Accepts healthy volunteers

Consumption of More Ideal Food Options (COMIDA: Consumo de Opciones Más Ideales De Alimentos)

NCT03851458
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Initial in-person individual diet and exercise counseling (N vs. Y), Thrice weekly diet and exercise text messages (N vs. Y), Weekly telephone support (N vs. Y), Self-monitoring tools (N vs. Y) (for diet and weight)
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,785 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 22, 2026, 4:04 PM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes Management Using a Very Low Carbohydrate Versus Standard Diet

NCT03710928
View directory record Official record
Conditions
Type1diabetes
Interventions
very low carbohydrate diet, standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Nutritional Supplement Effect on HDL Function

NCT04529174
View directory record Official record
Conditions
HDL
Interventions
CardioLux™HDL, Placebo
Dietary Supplement
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Completed No phase listed Observational

Clinical Outcomes, Nutritional Status, Exercise and Psychosocial Factors in Pediatric Hematopoietic Cell Transplant

NCT02734797
View directory record Official record
Conditions
Malnutrition, Obesity
Interventions
Not listed
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
2 Years to 25 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 24, 2024 · Synced Sep 22, 2026, 4:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Fasting Mimicking Diet

NCT04150159
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
FMD Arm
Dietary Supplement
Lead sponsor
Hypertension Institute, Nashville
Other
Eligibility
35 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Sep 22, 2026, 4:04 PM EDT
Recruiting Not applicable Interventional

Gut Microbiome and Sex as Risk Factors for Kidney Stones After Bariatric Surgery

NCT04590690
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Special diet
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 130 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 22, 2026, 4:04 PM EDT