National Leaders in Nutrition, Metabolism, Obesity, and Aging Research

We perform advanced clinical research and train future leaders in the fields of Nutritional Science & Obesity Medicine. The division is home to the Center for Human Nutrition, an institute dedicated to nutrition and obesity research at the School of Medicine.

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Innovative Research and Clinical Studies

Outstanding Patient Care Experience

Progressive Training and Fellowships

Recruiting Research Participants for Clinical Weight-loss Study with GLP-1 Medication

Dr. Klein & trial participant discuss the effects of GLP-1 on KMOV.

Dr. Samuel Klein, WashU’s Division Chief of Nutritional Science & Obesity Medicine, was recently invited by KMOV’s First Alert 4 to discuss his ongoing trial with GLP-1 weight-loss drugs. As these medications grow in popularity, Dr. Klein is running clinical trials to better understand the effects and impact they have on patients.

Individuals interested in participating are encouraged to email nutritionresearch@wustl.edu and/or call the research office at 314-273-1879.

Volunteer for Health assists researchers with reaching recruitment goals

By Julia Sandvoss • August 31, 2023

At Washington University (WU), more than 1,000 clinical studies begin every year.

The ability of a study to recruit participants is often the deciding factor of the project’s success.

Volunteer for Health was developed by Janet B. McGill, MD, MA, FACEProfessor of Medicine in the Division of Endocrinology, Metabolism & Lipid Research in the late 1990’s as a way to provide a diabetic database for her research. It was called Volunteer for Health (VFH) as this was a volunteer group of people/patients who volunteered to participate in those studies. Eventually, this database was converted into an online research registry, now known as the Research Participant Registry (RPR) that consists of about 20,000 participants. VFH is a no-cost service thanks in part to funding provided by the Institute of Clinical and Translational Sciences (ICTS). This support allows Principal Investigators (PIs) to work with VFH on email blasts, social media posts, posters, recruitment plans and more.

Longevity Research Program

A collaboration of Washington University School of Medicine and Reinsurance Group of America, Incorporated (RGA), the Longer Life Foundation has as its mission: 

To fund and support the study of factors that either predict the mortality and morbidity of select populations or influence improvements in longevity, health, and wellness. 

The Longer Life Foundation

For more than 20 years, the Longer Life Foundation has awarded Pilot & Feasibility grant funding to investigators with novel ideas for advancing their research addressing topics related to the Foundation mission. We look to fund research studying determinants of long-term prognoses for common human ailments. Preference is given to clinical research that involves the potential for new discoveries rather than the implementation of existing therapeutic strategies. The Longer Life Foundation also funds studies that investigate methods to improve disease prognosis or prevent disease from occurring, thereby improving quality and quantity of life. However, these studies should involve diseases specifically posing a risk or are known to shorten life expectancy. The Foundation is interested in individual pilot and feasibility studies as well as pilot projects that are a component of larger or established studies, such as analyses of existing databases. 

Call for Applications: Developmental Research Awards 

The Longer Life Foundation announces the 2026 Call for Applications for WashU Medicine faculty for Pilot and Feasibility Research Projects addressing topics related to the Foundation’s mission. We are looking to fund research studying determinants of long-term outcomes for common human risk factors or conditions. 


Latest News

Looking at Bone and Muscle Mass Loss with Popular Weight-loss Drugs

Looking at Bone and Muscle Mass Loss with Popular Weight-loss Drugs

Dr. Samuel Klein, Division Chief of Nutritional Science & Obesity Medicine at Washington University in St. Louis, discusses his recent study with KMOX radio. Recruitment for clinical trials are active, and individuals interested in participating are encouraged to apply. Email nutritionresearch@wustl.edu or call 314-273-1879 for more information.
Dr. Hao-Wei Chang joins the Department of Medicine

Dr. Hao-Wei Chang joins the Department of Medicine (Links to an external site)

Dr. Hao-Wei Chang joins the Department of Medicine in the Division of Nutritional Science and Obesity Medicine as an Instructor as of April 2026. The quest to understand what we should eat to remain healthy has been a long-standing search, even before the dawn of civilization. Today, despite numerous advancements, we still face significant challenges, […]
Klein recognized by Endocrine Society for outstanding research

Klein recognized by Endocrine Society for outstanding research (Links to an external site)

Samuel Klein, MD, the William H. Danforth Professor of Medicine and Nutritional Science at Washington University School of Medicine in St. Louis, has received the Endocrine Society’s Outstanding Clinical Investigator Award.  The annual award recognizes an accomplished scientist who has made substantial contributions to the understanding of the progression and treatment of endocrine and metabolic […]