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Showing 1–24 of 130 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Diet composition 2 Clear all
Completed Not applicable Interventional Accepts healthy volunteers

PREDICT 2: Personalized Responses to Dietary Composition Trial 2

NCT03983733
View directory record Official record
Conditions
Diabetes, Heart Diseases, Diet Habit, Diet Modification, Microbial Colonization, Healthy, Obesity, Metabolism
Interventions
Dietary Intervention
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
18 Years to 70 Years
Enrollment
1,139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2022 · Synced Sep 6, 2026, 9:03 AM EDT
Active, not recruiting Not applicable Interventional

Can Gut Bacteria Predict Who Benefits Most From Exercise? A Gut Supplement to Help Exercise Non-Responders

NCT07180446
View directory record Official record
Conditions
Obesity &Amp; Overweight
Interventions
Cardiovascular Exercise, Butyrate
Behavioral · Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Phase 2 Interventional Results available

Reduced Carbohydrate Versus Fat in Obese Subjects

NCT00846040
View directory record Official record
Conditions
Obesity
Interventions
Reduced fat diet, Reduced carbohydrate diet, Drug: f-18 fallypride, fMRI, PET
Other · Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Precision Nutrition Impact on Health-Related Behavior Change

NCT04959318
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Professional nutrition counseling, No professional nutrition counseling
Other
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years to 45 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Feb 10, 2025 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Beef on Muscle Fatigue in Older Adults

NCT05860088
View directory record Official record
Conditions
Muscle Weakness, Muscle; Fatigue, Heart, Older Adults
Interventions
Beef Diet, Vegetarian Diet
Other
Lead sponsor
Indiana University
Other
Eligibility
60 Years to 85 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effects of Formula Diet on Body Weight, Body Composition, and Biomarkers for Disease Compared to a Standard Diet

NCT00138645
View directory record Official record
Conditions
Body Weight Changes
Interventions
MicroDiet, Healthy Diet
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Performance Nutrition for Residents and Fellows

NCT03698123
View directory record Official record
Conditions
Physician Well-being, Cognitive Function, Diet Modification, Diet Habit, Shift-Work Related Sleep Disturbance, Sleep Deprivation
Interventions
Dietary Modification
Other
Lead sponsor
Stanford University
Other
Eligibility
21 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2022 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Composition, Weight Control, and Breast Carcinogenesis

NCT01315483
View directory record Official record
Conditions
Breast Cancer
Interventions
Weight Loss Dietary Pattern
Other
Lead sponsor
Colorado State University
Other
Eligibility
21 Years and older · Female only
Enrollment
259 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Sep 6, 2026, 9:03 AM EDT
Recruiting Phase 2Phase 3 Interventional

MitoQ for Early-phase Schizophrenia-spectrum Disorder and Mitochondrial Dysfunction

NCT06191965
View directory record Official record
Conditions
Schizophrenia and Related Disorders, Mitochondrial Alteration, Cognitive Impairment
Interventions
MitoQ, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
New Haven, Connecticut • Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Phase 2 Interventional

Survival TRaining for ENhancing Total Health (STRENGTH)

NCT00068458
View directory record Official record
Conditions
Breast Cancer, Depression, Weight Changes
Interventions
Calcium-Rich Diet, Arm 2: Exercise + Calcium-Rich Diet, Exercise + Fruit & Vegetable, Low Fat + Calcium Diet
Dietary Supplement · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
4
States / cities
Durham, North Carolina • Goldsboro, North Carolina • Winston-Salem, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2017 · Synced Sep 6, 2026, 9:03 AM 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 6, 2026, 9:03 AM EDT
Recruiting Not applicable Interventional

Effect of Nicotinamide Riboside on Ketosis, Fat Oxidation & Metabolic Rate

NCT06044935
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Standard Diet, Ketogenic Diet, Placebo, Nicotinamide Riboside
Other · Dietary Supplement
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

FB4 (Framingham, Boston, Bloomington, Birmingham, and Baylor)

NCT03394664
View directory record Official record
Conditions
Obesity
Interventions
Feeding Study
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Ashland, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of Coffee Mannooligosaccharides for Weight Management

NCT00932750
View directory record Official record
Conditions
Obesity
Interventions
Coffee mannooligosaccharide, Coffee mannooligosaccharides
Dietary Supplement
Lead sponsor
Mondelēz International, Inc.
Industry
Eligibility
20 Years to 65 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2012 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Phase 2Phase 3 Interventional

Low Glycemic Load Diets in Latino Children at Risk for Type 2 Diabetes

NCT01068197
View directory record Official record
Conditions
Obesity, Type 2 Diabetes Mellitus
Interventions
Low Glycemic Load Diet versus Low Fat Diet
Behavioral
Lead sponsor
Nazrat Mirza
Other
Eligibility
7 Years to 14 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 8, 2014 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Results available

Dietary Salt in Rheumatoid Arthritis

NCT03649178
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
salt
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Active, not recruiting Not applicable Interventional

The TRIABETES - ARMMS-T2D Study: A Randomized Trial to Compare Surgical and Medical Treatments for Type 2 Diabetes

NCT01047735
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Roux-en-Y Gastric Bypass Surgery, Laparoscopic Adjustable Gastric Banding, Lifestyle Weight Loss Intervention
Procedure · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
25 Years to 55 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional

EMPOWER Rural Extension Weight Management Pilot Study

NCT05587790
View directory record Official record
Conditions
Obesity, Overweight, Weight Loss
Interventions
Weight Management Intervention
Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Freeport, Illinois • Hillsboro, Illinois • Marshall, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Phase 1 Interventional

Effect of High Monounsaturated Fat Diet on Glycemic Control and Cardiovascular Risk Factors in Type 2 Diabetes

NCT00622960
View directory record Official record
Conditions
Overweight, Obesity, Type 2 Diabetes
Interventions
High-MUFA diet, High-CHO diet
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
30 Years to 75 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2008 · Synced Sep 6, 2026, 9:03 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Graded Protein Intake on Body Composition in Older Adults

NCT04845282
View directory record Official record
Conditions
Sarcopenia
Interventions
Graded Protein plus Resistance Training, RDA Protein plus Resistance Training
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
55 Years to 110 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 6, 2026, 9:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Plants Optimizing Development Study (PODS)

NCT06276426
View directory record Official record
Conditions
Healthy Children
Interventions
Soy foods, Non-Soy Plant-Based Foods
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
8 Years to 11 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 6, 2026, 9:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Potatoes, Type 2 Diabetes, and Cardiometabolic Health

NCT07229482
View directory record Official record
Conditions
T2D, Blood Pressure, Cardiometabolic Health
Interventions
Controlled diet: Potato-rich healthy dietary pattern, Controlled diet: Typical Western-style dietary pattern
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years to 70 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 6, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Fermented Vegetables on Gut Microflora and Inflammation in Women

NCT03407794
View directory record Official record
Conditions
Inflammation, Women's Health, Gastrointestinal Microbiome
Interventions
Fermented vegetable, Non-fermented vegetable
Other
Lead sponsor
University of North Florida
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Sep 6, 2026, 9:03 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Seleno-L Methionine (SLM)-Axitinib-Pembrolizumab

NCT05363631
View directory record Official record
Conditions
Clear Cell Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma Metastatic
Interventions
Selenomethionine (SLM), Axitinib, Pembrolizumab
Drug
Lead sponsor
Mohammed Milhem
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Sep 6, 2026, 9:03 AM EDT