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 volunteersPhase 2
Implementing Food Referrals for Equity and Sustained Health
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 5+
- RecruitingHealthy volunteers
NAFLD Clinical Care Pathway
VA Office of Research and Development
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Nurturing Needs Study: Parenting Food Motivated Children
Temple University
- Location
- Philadelphia, PA + 1 other US site
- Eligibility basics
- Ages 4–5
- RecruitingHealthy volunteers
COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Prebiotics (Dried Plum) and Immune Function in Postmenopausal Women
Indiana University
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 60–75 · Women only
- RecruitingHealthy volunteers
A Food As Medicine Approach to Address Food Insecurity in Rural North Carolina
North Carolina State University
- Location
- Raleigh, NC
- Eligibility basics
- Ages 8–64
- RecruitingHealthy volunteers
Prescription of Step Counts for Targeted Changes in Body Composition and Cardiometabolic Risk in Overweight/Obese Adults
Kennesaw State University
- Location
- Kennesaw, GA
- Eligibility basics
- Ages 20+
- RecruitingHealthy volunteers
Effects of Breathing Training and Nitrate on Exercise at Simulated Altitude
Embry-Riddle Aeronautical University
- Location
- Daytona Beach, FL
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Effects of HIIT vs. TRE on Type 2 Diabetes Risk
Syracuse University
- Location
- Syracuse, NY
- Eligibility basics
- Ages 14–30
- RecruitingHealthy volunteers
Evaluation of the Potential of Grape Consumption to Improve Muscle Strength and Cognitive Function
Western New England University
- Location
- Springfield, MA
- Eligibility basics
- Ages 65+ · Women only
- RecruitingHealthy volunteers
Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
Madigan Army Medical Center
- Location
- Tacoma, WA
- Eligibility basics
- Ages 18–69
- RecruitingHealthy volunteers
The Benefits of Natural Medicine, Vitamin IV Therapy and Supplements: Maintaining Good Health Through Nature
Faith A. Richardson
- Location
- Dover, DE
- Eligibility basics
- Ages 21–80
- RecruitingHealthy volunteers
Weight Loss and Physical Fitness Following Pregnancy in Active Duty Women
Tripler Army Medical Center
- Location
- Honolulu, HI + 1 other US site
- Eligibility basics
- Ages 18–44 · Women only
- RecruitingHealthy volunteers
Fatty Acid Modulation of Brain Function in Older Adults
University of Vermont
- Location
- Burlington, VT
- Eligibility basics
- Ages 65–75
- RecruitingHealthy volunteers
Muscle Response to Different Amounts of Dietary Protein During Leg Immobilization
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 17–39
- RecruitingHealthy volunteers
ADAPT Study: Assessing Diet, Appetite and Physiology Throughout Weight Loss Study)
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Pulses: Optimizing Pulse Consumption for Cardiometabolic Health
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Non-interventional Pre-screening Protocol Aims to Evaluate Participants for Potential Trial Eligibility in Future Clinical Trials/Studies Focusing on Metabolic and Psychiatric Health.
Clindove Research LLC
- Location
- Brooklyn, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Impact of Supplemental Fiber on Gut and Vascular Health Related in Obesity Phenotypes
Ball State University
- Location
- Muncie, IN
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Countermeasures to Circadian Misalignment
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Barriers to Vegetarian Diets
University of Maryland, Baltimore
- Location
- Baltimore, MD + 2 other US sites
- Eligibility basics
- Ages 18–88
- RecruitingHealthy volunteers
Mississippi Community Engagement Alliance (MS CEAL): Fostering Community Solutions
University of Mississippi Medical Center
- Location
- Greenwood, MS + 1 other US site
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
The Precision Nutrition New York Study
Cornell University
- Location
- Ithaca, NY
- Eligibility basics
- Ages 21–50
- RecruitingHealthy volunteers
FRESH-EATS Project
University of South Florida
- Location
- Tampa, FL
- Eligibility basics
- Ages 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.