Study type
Nutrition and metabolism studies recruiting now
Nutrition and metabolism studies look at diets, supplements, metabolic conditions and fatty liver disease. Some are run by universities with controlled meals.
361 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Groceries for Residents of Southeastern USA to Stop Hypertension
Beth Israel Deaconess Medical Center
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
InAdvance: Surveillance, Prevention, and Interception in a Population at Risk for Cancer
Dana-Farber Cancer Institute
- Location
- Boston, MA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 2/Phase 3
Limited Versus Extended Trophic Feeding (LET-FEED) Trial
University of Washington
- Location
- Tacoma, WA
- Eligibility basics
- Ages 0 mo–2
- RecruitingHealthy volunteers
Irritable Bowel Syndrome and Control Volunteers: Diet Challenge
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Acute Exercise and Endogenous Glucose Production in Type 2 Diabetes: Implications for Glycemic Control and Treatment of Hepatic Steatosis
AdventHealth Translational Research Institute
- Location
- Orlando, FL
- Eligibility basics
- Ages 25–55
- RecruitingHealthy volunteers
Measurement of Energy Metabolism in Infants
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 1 mo–4 mo
- RecruitingHealthy volunteersPhase 2
Non-Alcoholic Fatty Liver Disease, the HEpatic Response to Oral Glucose, and the Effect of Semaglutide (NAFLD HEROES)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Circadian Rhythms in Postmenopausal Women
Julie Pendergast
- Location
- Lexington, KY
- Eligibility basics
- Ages 45–65 · Women only
- RecruitingHealthy volunteers
The Influence of Chardonnay Marc Intake on Gut and Cardiometabolic Health
University of California, Davis
- Location
- Davis, CA
- Eligibility basics
- Ages 45–70 · Women only
- RecruitingHealthy volunteers
Investigating the Bioavailability of Broccoli Extract Supplements
Oregon State University
- Location
- Corvallis, OR
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Strong Families Start at Home/Familias Fuertes Comienzan en Casa
Brown University
- Location
- Providence, RI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Sensory Strategy to Cut Sugary Beverages in African/American and Latine Adolescents
Nana Gletsu Miller
- Location
- Indianapolis, IN + 1 other US site
- Eligibility basics
- Ages 12–18
- RecruitingHealthy volunteers
Healthy Volunteers Enteral Nutrition Study (HEN)
James Lewis
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Circadian Intervention to Improve Cardiometabolic Health
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Effects of Ketogenic Diet on Alcohol Intoxication
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 21–50
- RecruitingHealthy volunteersPhase 4
Fibrosis Lessens After Metabolic Surgery
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Mechanistic Effect of Walnut Consumption on Sleep Quality
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteersPhase 2
NAUTICAL: Effect of Natriuretic Peptide Augmentation on Cardiometabolic Health in Black Individuals
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Tissue Destruction and Healing in Celiac Disease
University of Chicago
- Location
- Chicago, IL + 1 other US site
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 2
Convergent Mechanisms Underlying Reprometabolic Syndrome in Women
University of Colorado, Denver
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 18–38 · Women only
- RecruitingHealthy volunteers
Eating Almonds Before a Meal to Control Blood Sugar
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 25–50
- RecruitingHealthy volunteers
Assessment and Educational Intervention to Reduce Ultra-processed Food Consumption in Pediatric Patients With IBD
Connecticut Children's Medical Center
- Location
- Hartford, CT
- Eligibility basics
- Ages 10–21
- RecruitingHealthy volunteersPhase 2
Effect of Ketone Esters on Liver Fat Content and Metabolic Function
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Healthy School Recognized Campus: A Hybrid Type 2 Implementation-Effectiveness Trial
Texas A&M University
- Location
- Dallas, TX
- Eligibility basics
- Ages 8–16
Who these studies look for
Expect limits on supplements, alcohol and diet changes during the study, and sometimes a set BMI range.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Are meals provided in nutrition studies?
Sometimes. Controlled-feeding studies provide food; others ask you to follow a plan at home. The listing summary and the study team explain what is involved.