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
Dietary Fiber Effects on the Microbiome and Satiety
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 20–55
- RecruitingHealthy volunteers
INTEGRATED CHILDHOOD ACTIVITY AND NUTRITION (ICAN) STUDY
University of Illinois at Urbana-Champaign
- Location
- Bloomington, IL
- Eligibility basics
- Ages 6–11
- RecruitingHealthy volunteers
Promoting Physical Activity and Healthy Eating in Latinas
Brown University
- Location
- Providence, RI
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Maximizing Nutrition Education to Meet Dietary and Food Security of Children and Parents
Purdue University
- Location
- West Lafayette, IN
- Eligibility basics
- Ages 5+
- RecruitingHealthy volunteers
Diet-Induced Changes in GEnetic Material
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 20–35 · Men only
- RecruitingHealthy volunteers
Diet and Active Lifestyle - Yuuyaraq (The Yup'ik Way of Life)
Oregon Health and Science University
- Location
- Bethel, AK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
Food Prescriptions to Promote Affordable Diets
Kaiser Permanente
- Location
- Pasadena, CA
- Eligibility basics
- Ages 2+
- RecruitingHealthy volunteers
Personalized Responses to Dietary Composition Trial 3
Zoe Global Limited
- Location
- Needham, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Gut Microbiota-dependent Health Impacts of Haskap Berries
Montana State University
- Location
- Bozeman, MT
- Eligibility basics
- Ages 35–65
- RecruitingHealthy volunteers
Remote Approaches for Optimizing Weight Loss (Elevate Weight Loss Trial)
The Miriam Hospital
- Location
- Providence, RI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Increasing Lean Protein Intake in Preschool-age Children and Assessing Effects on Cognition and Select Health Outcomes
Sibylle Kranz, PhD, RDN
- Location
- Charlottesville, VA
- Eligibility basics
- Ages 2–5
- RecruitingHealthy volunteers
AdventHealth Research Institute Non-Alcoholic Fatty Liver Disease Biobank and Registry (AVAIL)
AdventHealth Translational Research Institute
- Location
- Orlando, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Effect of Work Requirements in SNAP in Virginia
Harvard Medical School (HMS and HSDM)
- Location
- Glen Allen, VA
- Eligibility basics
- Ages 18–49
- RecruitingHealthy volunteers
Lifestyle Intervention for Healthy Change
Augusta University
- Location
- Augusta, GA
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
More Outside Your Door: a Diet/physical Activity Intervention to Decrease Risk of Obesity in Alaska Native Preschoolers
Alaska Native Tribal Health Consortium
- Location
- Anchorage, AK
- Eligibility basics
- Ages 3–5
- RecruitingHealthy volunteers
The Lake Nona Life Project
University of Central Florida
- Location
- Orlando, FL
- Eligibility basics
- Ages 18–110
- RecruitingHealthy volunteers
Trout Consumption in Young Children and Families and Brain Health
University of Idaho
- Location
- Moscow, ID + 1 other US site
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
Longitudinal Multi-Omic Profiles to Reveal Mechanisms of Obesity-Mediated Insulin Resistance
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 35–65
- RecruitingHealthy volunteers
A Culturally-relevant Micronutrient-dense Plant-rich (mNDPR) Dietary Intervention for Native Americans
Northern Arizona University
- Location
- Flagstaff, AZ
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Optimized Tailored Interventions in Metabolic and Lifestyle Outcomes (OPTIMAL)
University of Illinois at Urbana-Champaign
- Location
- Urbana, IL
- Eligibility basics
- Ages 45–64
- RecruitingHealthy volunteers
Advanced Cooking Education Full Scale Study
Cornell University
- Location
- Ithaca, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Western Diet on Cardiometabolic and Immune Function
University of Delaware
- Location
- Newark, DE
- Eligibility basics
- Ages 50–64
- RecruitingHealthy volunteers
Triage Survey for Cardiovascular, Obesity, and Related Endocrine Trial Eligibility
Brooklyn Clinical Research
- Location
- Brooklyn, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Pilot Factorial Trial of an Integrated Lifestyle Intervention
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
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.