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Showing 1–24 of 29 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Dietary manipulation Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Weight Loss and Cognitive Function in Adults

NCT03685305
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Hypocaloric diet with hunger reduction strategy, Hypocaloric diet without hunger reduction strategy
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 7, 2026, 11:45 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effect of Metabolic State on Anxiety in Human Subjects

NCT01322243
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Dietary manipulation
Other
Lead sponsor
Rockefeller University
Other
Eligibility
20 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2013 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional

Effect of Osteopathic Manipulative Medicine on Parkinson Disease

NCT02107638
View directory record Official record
Conditions
Parkinson Disease
Interventions
OMM treatment arm, Counseling
Procedure · Other
Lead sponsor
New York Institute of Technology
Other
Eligibility
40 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Old Westbury, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2024 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Daily Habits & Consumer Preferences Study

NCT05402137
View directory record Official record
Conditions
Obesity
Interventions
Weight stigma intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of a Personalized vs. Standard Approach to Weight Loss Recommendations

NCT04639076
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Behavioral Weight Loss Program, Personalized Behavioral Weight Loss Program
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
20 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 6, 2021 · Synced Sep 7, 2026, 11:45 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 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Results available

Men's Sexual Risk Behaviors: Alcohol, Sexual Aggression, and Emotional Factors

NCT03900650
View directory record Official record
Conditions
Sexual Behavior, Alcohol Drinking, Sexual Aggression, Emotions
Interventions
High provocation manipulation, Low provocation manipulation, Alcoholic beverage, Non-alcoholic beverage
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
21 Years to 30 Years · Male only
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Sep 7, 2026, 11:45 AM EDT
Terminated Not applicable Interventional

Ketogenic Diet in Patients With Heart Failure

NCT04235699
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction
Interventions
Nutritional and Dietary Manipulation
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 75 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Sep 7, 2026, 11:45 AM EDT
Recruiting Phase 1Phase 2 Interventional

Manipulation of the Gut Microbiome by a Standardized Preoperative Diet to Prevent Colorectal Cancer Recurrence and Metastasis Following Surgery

NCT06349590
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High-fiber/low-fat meals
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Sep 7, 2026, 11:45 AM EDT
Recruiting Not applicable Interventional

Alcohol & Men's Sexual Risk Behaviors

NCT06158880
View directory record Official record
Conditions
Sexual Behavior, Alcohol Drinking, Sexual Aggression, Emotions
Interventions
Alcoholic Beverage, Non-alcoholic Beverage, Partner Negative Mood Manipulation, Partner Positive Mood Manipulation
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
21 Years to 30 Years · Male only
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Reference Values for Plasma Catechols

NCT00267904
View directory record Official record
Conditions
Healthy Volunteers, Normal Physiology
Interventions
Coffee, Banana, Olives, Temp. manip.
Other
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 28, 2022 · Synced Sep 7, 2026, 11:45 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Dynamic Connectivity Under Metabolic Constraints

NCT04106882
View directory record Official record
Conditions
Insulin Resistance, Healthy, Diet Modification, Aging
Interventions
Ketones, Glucose
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 79 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
2
States / cities
Charlestown, Massachusetts • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Sep 26, 2019 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Controlled Clinical Study to Determine Novel Health Benefits of Cheese Consumption

NCT02918422
View directory record Official record
Conditions
Metabolic Syndrome X
Interventions
Nutritional and Dietary Manipulation
Other
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 7, 2026, 11:45 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Mommio: Training in Vegetable Parenting

NCT02215421
View directory record Official record
Conditions
Obesity
Interventions
Mommio
Behavioral
Lead sponsor
Archimage, Inc.
Industry
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 13, 2016 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional

Evaluating Hunger Manipulation During Feeding Intervention

NCT05053438
View directory record Official record
Conditions
Feeding Disorders, Feeding and Eating Disorders, Avoidant/Restrictive Food Intake Disorder
Interventions
Intensive Multidisciplinary Feeding Intervention (IMFI)-Standard of Care, Intensive Multidisciplinary Feeding Intervention (IMFI) standard of care + rapid tube weaning
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Months to 6 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Sep 7, 2026, 11:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Osteopathic Manipulation Therapy in the Treatment of Interstitial Cystitis

NCT00873171
View directory record Official record
Conditions
Interstitial Cystitis
Interventions
Not listed
Lead sponsor
CAMC Health System
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Regulation of FGF21 by Nutritional Challenges

NCT00968747
View directory record Official record
Conditions
Fasting, Non-alcoholic Fatty Liver Disease (NAFLD)
Interventions
Fasting, Diet, oral carbohydrate challenge
Behavioral · Dietary Supplement
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 7, 2026, 11:45 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Dynamic Connectivity Under Metabolic Constraints

NCT04840095
View directory record Official record
Conditions
Insulin Resistance, Healthy, Diet Modification, Aging
Interventions
Ketones, Glucose
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 79 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2023
U.S. locations
2
States / cities
Charlestown, Massachusetts • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2023 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

STUDY: Effects of Potatoes in a Weight Loss Program

NCT01186393
View directory record Official record
Conditions
Obesity
Interventions
Control, Low Glycemic Index, High Glycemic Index
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
2
States / cities
Davis, California • Mather, California
Source: ClinicalTrials.gov public record
Updated May 17, 2015 · Synced Sep 7, 2026, 11:45 AM EDT
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 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Manipulation on Metabolism in Healthy Adults

NCT00476125
View directory record Official record
Conditions
Metabolic Regulation, Fasting, Ketogenic Diet
Interventions
Dietary manipulation ketogenic diet, Dietary Manipulation - 12 day ketogenic diet, 16 Hour Fast
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Phase 2 Interventional

Dietary Manipulation of the Microbiome-metabolomic Axis for Mitigating GVHD in Allo HCT Patients

NCT02763033
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplantation
Interventions
Bob's Red Mill®, Starch Placebo
Drug · Other
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
10 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Type 2 Diabetes Controlled Eating Experiment

NCT00198926
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
covert v overt nutrition labeling, varying meal nutrition manipulation
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2001
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 19, 2005 · Synced Sep 7, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Dietary Sugar Consumption on Sweet Taste Perception

NCT02090478
View directory record Official record
Conditions
Sweet Taste Perception
Interventions
Low sugar diet, Sham diet manipulation
Other
Lead sponsor
Monell Chemical Senses Center
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2014 · Synced Sep 7, 2026, 11:45 AM EDT