National Health and Nutrition Examination Survey

National Health and Nutrition Examination Survey

Image of group of people holding hands
Participate! Be part of NHANES.

Learn about your health and help us understand the health of the U.S. population. We can’t do it without you.

Image of family cooking together
Nutrition in America

Participating in our survey helps us better understand what we eat and how nutrition is related to improving health and preventing disease.

Image of NHANES mobile examination center
NHANES – The Nation’s Mobile Health Survey

Health measurements take place in custom designed and highly equipped mobile health centers. This information plays an important role in improving the health of all people living in the U.S.

Image of group of friends hanging out
Represent your community!

NHANES visits only 15 communities each year. For more than 60 years, over 240,000 people like you have been part of NHANES helping us improve the health of America.  If you are selected, please participate!

Image of older men working out together in a gym
Safety is our priority!

NHANES follows all current CDC recommended guidelines on COVID-19 to keep our survey participants and staff safe.

Image of family grocery shopping
We protect your information!

We take your privacy very seriously. All information collected is kept secure. We never share anything that identifies you or your family without your consent.

NHANES - The Nation's mobile health survey

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

Contact NHANES

If you have questions about NHANES, please call 1-800-232-4636.
For more information on NHANES visit the National Health and Nutrition Examination Survey homepage.