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
- Recruiting
A Study to Evaluate the Impact of a Magnolia Officinalis Dietary Supplement on Immune Biomarkers in Subjects With Psoriasis
Sirt3 LLC
- Location
- Englewood, NJ
- Eligibility basics
- Ages 18+
- Recruiting
A Randomized, Triple-blind, Placebo-controlled Study to Evaluate the Effects of a Supplement on Nutrient Gaps and Gut Health Among Individuals Utilizing GLP-1 RAs
Athletic Greens International
- Location
- Santa Monica, CA
- Eligibility basics
- Ages 18–59
- Recruiting
AI-driven Total Parenteral Nutrition Platform
Takeoff41, Inc.
- Location
- Stanford, CA
- Eligibility basics
- Up to age 6 mo
- RecruitingPhase 1/Phase 2
Open-Label Study of mRNA-3927 in Participants With Propionic Acidemia
ModernaTX, Inc.
- Location
- Los Angeles, CA + 7 other US sites
- Eligibility basics
- Any age listed
- Recruiting
Mom Multi Postnatal Supplementation Trial
Perelel Inc.
- Location
- Athens, GA
- Eligibility basics
- Ages 18+ · Women only
- Recruiting
IBS Skin Patch Test Food Allergy Study
IBS-80, LLC
- Location
- North Wales, PA + 1 other US site
- Eligibility basics
- Ages 18+
- Recruiting
Digital Wellness Nurse - FIT Families: Virtual Family Intervention for Adolescent Obesity
Machine and Human Interaction
- Location
- Charleston, SC
- Eligibility basics
- Ages 12–17
- Recruiting
Rising Tide - Amniotic Tissue(s) Treatments for Chronic Diabetic Foot Ulcers
Tides Medical
- Location
- Fresno, CA + 8 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Viome Nutritional Programs to Improve Clinical Outcomes for Gastrointestinal Conditions
Viome
- Location
- Bothell, WA
- Eligibility basics
- Ages 25–75
- Recruiting
Viome Nutritional Programs to Improve Clinical Outcomes for Metabolic Conditions
Viome
- Location
- Bothell, WA
- Eligibility basics
- Ages 25–75
- Recruiting
Efficacy of Viome's Precision Nutrition Program Towards Reducing HbA1c
Viome
- Location
- Bothell, WA
- Eligibility basics
- Ages 18+
- Recruiting
Efficacy of Viome's Precision Nutrition Program Towards Reducing HbA1c
Viome
- Location
- Bothell, WA
- Eligibility basics
- Ages 18+
- Recruiting
Clinical Trial Assessing Human Placental Membrane Products and Standard of Care Versus Standard of Care in Nonhealing DFUs and VLUs
C5 Biomedical
- Location
- Metairie, LA
- Eligibility basics
- Ages 18+
- Recruiting
A Clinical Trial to Assess the Efficacy and Tolerance of a Berberine-based Nutraceutical Formula to Aid Blood Sugar Regulation and Metabolism
Ultimate International, Inc.
- Location
- Santa Monica, CA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Rise & Thrive: Community-Engagement Intervention for Stress and Depression in Youth.
Ann & Robert H Lurie Children's Hospital of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 15–20
- RecruitingHealthy volunteers
Investigation of Egg Intake and the Relationship Between Gut Microbiome, Metabolic, and Immune Profiles
University of Connecticut
- Location
- Storrs, CT
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Trial Evaluating Nutritional Fiber in Digestive Symptoms of Endometriosis
LOAM Science
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Weight Loss Through Mayo Clinic Diet
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
Study of the Effect of Innate on the Inflammatory Response to Endotoxin
National Institute of Environmental Health Sciences (NIEHS)
- Location
- Research Triangle Park, NC
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Early Tracking of Childhood Health Determinants (ETCHED) Study
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 0 mo–99
- RecruitingHealthy volunteers
Long-Term Follow-Up of Survivors of Pediatric Cushing Disease
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–90
- RecruitingHealthy volunteers
Food and Circadian Timing
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Tasting Plant Forward Meals
Sara Maksi
- Location
- Lexington, KY
- Eligibility basics
- Ages 18–25
- RecruitingHealthy volunteers
Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 14–18
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.