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
Nutrition to Support Postoperative Recovery
Dartmouth-Hitchcock Medical Center
- Location
- Lebanon, NH
- Eligibility basics
- Ages 70+
- RecruitingHealthy volunteers
Cardiovascular Risk and Circadian Misalignment in Short Sleepers - Role of Extended Eating Period
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Effects of Daily Beef Intake, as a Component of a Heart-Healthy Diet on Cellular Zinc
University of California, Davis
- Location
- Davis, CA
- Eligibility basics
- Ages 55–70
- RecruitingHealthy volunteersPhase 2
ALA-enriched Nutrition for Prevention of Cognitive Decline in APOE4 Older Adults
Michal Schnaider Beeri, Ph.D.
- Location
- New Brunswick, NJ
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Addressing Food Insecurity: Plant-Based Food Prescription Program
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Up to age 99
- RecruitingHealthy volunteers
A Study of a Dietary Supplement on Serum Biomarkers in Children
SF Research Institute, Inc.
- Location
- San Francisco, CA
- Eligibility basics
- Ages 4–15
- RecruitingHealthy volunteers
Reducing Metabolic Dysregulation in Dyads
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 9–55
- RecruitingHealthy volunteers
Project humAn dieTary daTa rEtuRN
Duke University
- Location
- Durham, NC
- Eligibility basics
- Up to age 1
- RecruitingHealthy volunteers
Assessing and Addressing Community Exposures to Environmental Contaminants
NYU Langone Health
- Location
- New York, NY
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Investigating the Link Between Type 2 Immunity and NAFLD in Human Obesity
Mayo Clinic
- Location
- Scottsdale, AZ
- Eligibility basics
- Ages 30–70
- RecruitingHealthy volunteers
Phosphate Assessment in Chronic Kidney Disease Patients Study
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
EMS Providers' Health Initiative Study
State University of New York at Buffalo
- Location
- Buffalo, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Pilot Test of Five Weight Neutral Interventions to Improve Health Among Adults of Higher Body Weight
The Miriam Hospital
- Location
- Providence, RI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Breath Analysis & Malnutrition
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 18–95
- RecruitingHealthy volunteers
Nutrition and Obesity in Under-Represented Populations: Food Insecurity Research to Advance Science and Improve Health
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 1–2
- RecruitingHealthy volunteers
Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Pistachio Snacking and Metabolic Flexibility
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 25–45
- RecruitingHealthy volunteers
Mechanisms of Malnutrition in Cirrhosis With Portosystemic Shunting
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Diagnostic Utility of SGLT1/2 Inhibition to Facilitate Myocardial Glucose Suppression
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
High Fructose Diet, the Gut Microbiome, and Metabolic Health
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 25–45
- RecruitingHealthy volunteers
Impact of Circulating and Tissue-specific Lipids on Vascular Function and Insulin Sensitivity in Chronic Night Shift Workers
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 2
Omega-3D: Omega-3 for Diet-Driven Health Disparities
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
Diet and Motility in IBS
Children's Hospital of Philadelphia
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 8–18
- RecruitingHealthy volunteers
Examining Neurobiological Mechanisms Underlying the Therapeutic Effect of the Ketogenic Diet in Bipolar Disorder (BD)
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–40
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.