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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Dietary Modifications Clear all
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Complex Effects of Dietary Manipulation on Metabolic Function, Inflammation and Health

NCT02706262
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Metabolically abnormal obese - Mediterranean diet, Metabolically abnormal obese - Low carbohydrate ketogenic diet, Metabolically abnormal obese - Plant-based, very-low-fat diet, Annual Follow-up Visits
Other · Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

What's Hopping? Cricket Protein and Human Gut Microbiota

NCT03383341
View directory record Official record
Conditions
Healthy
Interventions
Cricket Protein Powder, Placebo control
Dietary Supplement · Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Training Response Inhibition to Obesogenic Foods

NCT04659837
View directory record Official record
Conditions
Inhibitory Control Training, Gameifaction
Interventions
No-Added-Sugar Diet
Behavioral
Lead sponsor
Drexel University
Other
Eligibility
18 Years to 65 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Sep 3, 2026, 6:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Improving Dietary Quality and Social Engagement Through a Virtual Nutrition and Teaching Kitchen Intervention Among Older Veterans With Impaired Mobility

NCT06726083
View directory record Official record
Conditions
Impaired Mobility
Interventions
Nutrition Intervention, Contact Control
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
65 Years and older
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Terminated No phase listed Observational

Attitudes Toward Physical Activity and Nutrition Intervention During Cancer Treatment

NCT02887196
View directory record Official record
Conditions
Breast Neoplasms, Body Weight Changes
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Sep 3, 2026, 6:51 AM EDT
Enrolling by invitation Not applicable Interventional

Plant-Focused Nutrition in Patients With Diabetes and Chronic Kidney Disease

NCT05514184
View directory record Official record
Conditions
Chronic Kidney Disease (CKD) With Diabetes Mellitus (DM), CKD Stage 3, CKD Stage 4, CKD Stage 5, Diabetes Mellitus, Diabetic Kidney Disease
Interventions
PLAFOND diet
Dietary Supplement
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Orange, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 3, 2026, 6:51 AM EDT
Suspended Not applicable Interventional

Keto-Brain:Investigating the Use of Ketogenic Diets in Brain Metastases

NCT05428852
View directory record Official record
Conditions
Brain Metastases, Adult
Interventions
Laboratory Biomarker Analysis, Neurocognitive Assessment, Questionnaire Administration, Fitbit, Dietary Intervention
Other · Device · Dietary Supplement
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Effects of Wolffia Globosa (Mankai) in Patients Undergoing Bariatric Surgery.

NCT03999632
View directory record Official record
Conditions
Bariatric Surgery Candidate, Diet Modification
Interventions
Dietary modification with introduction of Mankai
Other
Lead sponsor
Cleveland Clinic Florida
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Collagen Vitamin C Dose Response Performance

NCT03293004
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Hydrolyzed collagen, Vitamin C, Optimized Hydrolyzed Collagen and Vitamin C, Gummy Placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2018 · Synced Sep 3, 2026, 6:51 AM EDT
Recruiting Phase 2 Interventional

A Cruciferous Vegetable Eating Program for the Reduction of Cancer Recurrence and Progression in Patients With Non-muscle Invasive Bladder Cancer

NCT06733363
View directory record Official record
Conditions
Non-Muscle Invasive Bladder Carcinoma, Recurrent Bladder Carcinoma, Recurrent Non-Muscle Invasive Bladder Carcinoma, Stage 0a Bladder Cancer AJCC v8, Stage 1 Bladder Cancer AJCC v8
Interventions
Behavioral Dietary Intervention, Telephone- Based Intervention
Behavioral
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Increased Dietary Protein Intake During GLP-1 Medication Use (in Middle-aged Women With Overweight/Obesity)

NCT07480109
View directory record Official record
Conditions
Obesity, Women (Between 30 to 60 Years Old)
Interventions
Protein Rich Foods
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
30 Years to 60 Years · Female only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Recruiting Not applicable Interventional

Ketogenic and Carnivore (Lion) Diets for Inflammatory Bowel Disease and Rheumatoid Arthritis

NCT07524244
View directory record Official record
Conditions
Rheumatoid Arthritis (RA), Crohn's Disease (CD), Ulcerative Colitis (UC)
Interventions
Ketogenic diet, Carnivore (Lion) Diet
Behavioral
Lead sponsor
Fuller Research Foundation
Other
Eligibility
18 Years to 64 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Effect of Diet-induced Weight Loss on HIV-associated Metabolic Syndrome

NCT00857298
View directory record Official record
Conditions
HIV (Human Immunodeficiency Virus), Metabolic Syndrome, HIV Infections
Interventions
Dietary Intervention
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 15, 2015 · Synced Sep 3, 2026, 6:51 AM EDT
Withdrawn Early Phase 1 Interventional

Evaluating the Combined Effect of Vedolizumab and Semi-Vegetarian Diet on Ulcerative Colitis.

NCT03309865
View directory record Official record
Conditions
Ulcerative Colitis, Dietary Modification
Interventions
semi-vegetarian diet, Vedolizumab Injection
Dietary Supplement · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 25, 2018 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional Results available

Impact of a Low-Carbohydrate Diet in Pediatric Type 1 Diabetes

NCT03997409
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Dietary Intervention
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
13 Years to 21 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 7, 2023 · Synced Sep 3, 2026, 6:51 AM EDT
Active, not recruiting Not applicable Interventional

Evaluating the Influence of Diet-induced Weight Loss on Fat (Adipose) Tissue's Insulin Sensitivity and Testosterone Synthesis in Women With Overweight or Obesity, Insulin Resistance, and Hyperandrogenemia

NCT06998238
View directory record Official record
Conditions
Overweight and Obesity, Hyperandrogenemia, Insulin Resistance
Interventions
Mediterranean-based, carbohydrate restricted, calorie reduced diet
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Dietary Oxysterols and β-Cell Function Among African Americans

NCT05072587
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Plant-based diet with no oxysterols, Standard ADA Diet (SADA)
Behavioral
Lead sponsor
Morehouse School of Medicine
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Trial of Two Dietary Programs on Cardiometabolic Risk Factors in Subjects With Metabolic Syndrome

NCT01010841
View directory record Official record
Conditions
Metabolic Syndrome, Overweight, Obesity, Hypercholesterolemia
Interventions
UltraMealPlus 360 (Medical food), Low-glycemic-load diet
Dietary Supplement · Other
Lead sponsor
MetaProteomics LLC
Industry
Eligibility
20 Years to 75 Years · Female only
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 11, 2012 · Synced Sep 3, 2026, 6:51 AM 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 3, 2026, 6:51 AM EDT
Recruiting Not applicable Interventional

A Randomized Controlled Trial of a Nutritional Intervention for Endometriosis

NCT07090096
View directory record Official record
Conditions
Endometriosis
Interventions
A whole food plant based diet
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Phase 1Phase 2 Interventional

The MHERO Study (Michigan's Hypertension, Diabetes, and Obesity Education Research Online)

NCT03729479
View directory record Official record
Conditions
Type2 Diabetes Mellitus, Hypertension, PreDiabetes, Overweight and Obesity
Interventions
DASH diet, Very low carbohydrate, ketogenic diet, Extras
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 70 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 28, 2020 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

Screening for and Responding to Food Insecurity Among Infusion Patients

NCT05889780
View directory record Official record
Conditions
Cancer, Diet, Healthy, Nutrition, Healthy
Interventions
Food pantry referrals, No-prep, ready-to-eat meals, Vouchers
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 8, 2024 · Synced Sep 3, 2026, 6:51 AM EDT
Not yet recruiting Not applicable Interventional

Adaptive Dietary Intervention (ADI) for Asian Americans With Type 2 Diabetes

NCT07278531
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Continuous Glucose Monitoring (CGM), Adaptive dietary intervention (GEM)
Device · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 3, 2026, 6:51 AM EDT
Completed Not applicable Interventional

S1008: Exercise, Diet, & Counseling in Improving Weight Loss in Overweight Female Breast or Colorectal Cancer Survivors

NCT01453452
View directory record Official record
Conditions
Anxiety Disorder, Breast Cancer, Cognitive/Functional Effects, Colorectal Cancer, Depression, Fatigue, Pain, Psychosocial Effects of Cancer and Its Treatment, Weight Changes
Interventions
behavioral dietary intervention, exercise intervention, counseling intervention, quality-of-life assessment
Behavioral · Other · Procedure
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
Up to 120 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
58
States / cities
Tucson, Arizona • Antioch, California • Fremont, California + 45 more
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 3, 2026, 6:51 AM EDT