skip to content

Global Navigation

NIH Division of Nutrition Research Coordination

Home - NIH Division of Nutrition Research Coordination

Main Navigation

Left Column

Main Content


Warren Grant Magnuson Clinical Center (CC)

The Clinical Center at the National Institutes of Health (NIH) in Bethesda, Maryland, is the nation's largest hospital devoted entirely to clinical research. It is a national resource that makes it possible to rapidly translate scientific observations and laboratory discoveries into new approaches for diagnosing, treating, and preventing disease. Approximately 1,500 studies are in progress at the NIH Clinical Center. Most are Phase I and Phase II clinical trials.

More than 350,000 patients, from all 50 states and throughout the world, have participated in clinical research at the Clinical Center since it opened in 1953.

The Clinical Center promotes translational research – that is, the transference of scientific laboratory research into applications that benefit patient health and medical care. The "bench-to-bedside" approach adopted in 1953 locates patient care units in close proximity to cutting-edge laboratories doing related research. This facilitates interaction and collaboration among clinicians and researchers. Most important, patients and families in the Clinical Center benefit from the cutting-edge technologies and research and the compassionate care that are the signature of the NIH.

The Mark O. Hatfield Clinical Research Center was opened in 2005. The facility houses inpatient units, day hospitals and research labs and connects to the original Warren Grant Magnuson Clinical Center. Together, the Magnuson and Hatfield buildings form the NIH Clinical Center. They serve the dual role of providing humane and healing patient care and the environment clinical researchers need to advance clinical science. It was named in honor of Senator Mark O. Hatfield of Oregon, who supported medical research throughout his congressional career.

The 870,000-square-foot Hatfield building has 240 inpatient beds and 82 day-hospital stations. This arrangement can be easily adapted to allow more inpatient beds and fewer day-hospital stations, or vice versa, because the new facility's design is highly flexible.

The Clinical Center is part of the NIH's intramural science research program. The NIH is the medical research agency of the United States (US) Government. It is part of the US Department of Health and Human Services.

Nutrition Research Services

Clinical Research Dietitians are available to consult with Clinical Center (CC) investigators regarding the planning, design, and implementation of nutrition-related components of proposed research protocols. Dietitians recommend optimal methodologies to assure valid and reliable data and assist with data collection, analysis, interpretation, and manuscript preparation. Dietitians advise on the benefit and appropriateness of adding nutrition services to existing research protocols.

Nutrition Research Services include the following:

Research Meals
Purpose: to control food intake as either a constant or a variable to meet protocol needs.

Dietary Intake and Eating Behavior Assessments
Purpose: to quantify energy and nutrient intake for a defined period of time; to characterize eating behaviors.

Body Composition Analysis
Purpose: to assess a patient's lean and fat mass.

Nutrition Counseling
Purpose: to provide nutrition education and counseling to research subjects as part of protocol requirements.

For more information on the CC Nutrition Program, contact:

Madeline Michael, M.P.H., R.D.
Chief, Clinical Nutrition Services
National Institutes of Health
Warren Grant Magnuson Clinical Center
Building 10, Room B2-246
10 Center Drive MSC 1078
Bethesda, MD 20892-1078
Phone: 301-496-3311
FAX: 301-496-2390

Back to Top

This page last reviewed: February 1, 2011