National Health and Nutrition Examination Survey

Welcome to the National Health and Nutrition Examination Survey (NHANES). Make a difference by participating!

Information from people like you has helped NHANES understand the nation’s health challenges for more than 60 years!

The National Health and Nutrition Examination Survey (NHANES) monitors the health and nutritional status of adults and children across the United States. NHANES is unique in that it combines interviews and physical exams. The survey is run by the National Center for Health Statistics (NCHS), which is part of the U.S. Centers for Disease Control and Prevention (CDC). NCHS is responsible for producing health and vital statistics for the nation.