Diet Clinical Trials

17 recruiting

Diet Trials at a Glance

189 actively recruiting trials for diet are listed on ClinicalTrialsFinder across 6 cities in 44 countries. The largest study group is Not Applicable with 133 trials, with the heaviest enrollment activity in Boston, Philadelphia, and Chicago. Lead sponsors running diet studies include University of British Columbia, University of California, Davis, and Brigham and Women's Hospital.

Browse diet trials by phase

Treatments under study

About Diet Clinical Trials

Looking for clinical trials for Diet? There are currently 17 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Diet trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Diet clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 189 trials

Recruiting
Not Applicable

Drivers and Barriers for Adopting Healthy and Sustainable Food Swaps in Young

Diet ModificationSustainable Food Consumption
University of Aberdeen30 enrolled1 locationNCT06714656
Recruiting
Not Applicable

Study of the Effect of Capsinoid Supplementation on Brown Adipose Tissue in Obese Adolescents

ExerciseObese AdolescentsDiet Modification+1 more
University of Avignon38 enrolled1 locationNCT06916208
Recruiting
Not Applicable

Nutrition for Precision Health, Powered by the All of Us

NutritionDietary HabitsHealth
RTI International8,000 enrolled14 locationsNCT05701657
Recruiting
Not Applicable

Evaluation of REACTS-IN, an Intervention to Improve Nutrition, Hygiene, and Sexual and Reproductive Health Services

StuntingEmpowermentAcceptability of Health Care+2 more
McGill University13,500 enrolled3 locationsNCT06362837
Recruiting
Not Applicable

The Treatment of Painful Diabetic Neuropathy With Diet

Peripheral Neuropathy With Type 2 DiabetesPainful Diabetic Neuropathy (PDN)Vegan Diet
AdventHealth40 enrolled1 locationNCT07509671
Recruiting
Not Applicable

The Effects of Weight and Nutrition Education on Weight Control Beliefs, Body Image, Self-Esteem and Eating Patterns in Undergraduate Dieters

Dietary Restraint
St. Joseph's Healthcare Hamilton150 enrolled1 locationNCT07349316
Recruiting
Not Applicable

Dietary Peanuts and Nutrition-Related Outcomes

Dietary Change
Ian J. Neeland, MD64 enrolled1 locationNCT07244458
Recruiting
Not Applicable

Leucine Requirements During Pregnancy

PregnancyProteinDietary Analysis
University of British Columbia40 enrolled1 locationNCT07437248
Recruiting
Not Applicable

Healthy Children, Healthy Communities: Effectiveness of a Multilevel Rural Community Engagement Model for Improving Children's Dietary Intake in Family Child Care Homes

Rural HealthDiet QualityFeeding Behaviors+2 more
University of Nebraska Lincoln360 enrolled1 locationNCT07160530
Recruiting
Not Applicable

Feasibility, Safety and Efficacy of a Predominantly Plant-based Diet in an Asian Population With Chronic Kidney Disease

Diet HabitChronic Kidney Disease stage3Chronic Kidney Disease stage4
Changi General Hospital40 enrolled1 locationNCT07544524
Recruiting
Not Applicable

Effect of Changes in Carbohydrate Intake Patterns on Glucose Control in Patients With Type 1 Diabetes

Type 1 DiabetesDiet InterventionGlucose Control
Yang Tao80 enrolled1 locationNCT06273631
Recruiting
Phase 2

Safety and Efficacy of Leucine-Restricted Diet Combined With Neoadjuvant Chemotherapy and Immunotherapy in Gastric Cancer

Gastric CancerLeucine-restricted Diet
Qilu Hospital of Shandong University108 enrolled1 locationNCT07537361
Recruiting
Not Applicable

Impacts of Sugar Warnings on Weight Bias

NutritionDiet Interventions
University of North Carolina, Chapel Hill543 enrolled1 locationNCT07346001
Recruiting

Nutritional Knowledge and Characteristics of HYROX Athletes

Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes
University of Alicante122 enrolled1 locationNCT07531953
Recruiting
Not Applicable

The Sleep2BWell Trial

Diet, HealthyWeight LossBlood Pressure+2 more
Columbia University150 enrolled2 locationsNCT06565104
Recruiting
Not Applicable

Effect of Vegetarien Diet on Protein Digestibility in Young and Elderly Volunteers

ElderlyYoung Healthy AdultsVegetarian Diet
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement48 enrolled1 locationNCT07521189
Recruiting
Not Applicable

Dietary Behavior Intervention in African Americans at Risk for Cardiovascular Disease

DietCooking
National Institutes of Health Clinical Center (CC)55 enrolled1 locationNCT04305431
Recruiting
Not Applicable

Sickle Cell, Pain and Mediterranean Diet

Sickle Cell DiseaseMediterranean DietSickle Cell+1 more
University of Illinois at Chicago30 enrolled1 locationNCT06886477
Recruiting

Dietary Salicylates and Preeclampsia

PreeclampsiaDiet HabitPregnancy Disease
Poznan University of Life Sciences500 enrolled1 locationNCT06239363
Recruiting

Baylor Infant and Toddler Biomarker of Nutrition Study

Healthy NutritionHealthy Diet
Baylor College of Medicine208 enrolled1 locationNCT05869760