Directory / Open datasets / HDB-0003

NHANES

CDC / National Center for Health Statistics

HDB-0003

The National Health and Nutrition Examination Survey combines interviews, physical examinations and laboratory tests on a representative sample of the US population, released in continuous two-year cycles since 1999. A workhorse dataset for epidemiology and public health research.

Category

Open dataset

Access

Open access

Cost

Free

Region

US

Coverage

Nationally representative sample, USA

Size

~10K participants per 2-year cycle

License / terms

Public domain (US government)

Data types

survey, examination, laboratory, dietary

epidemiology nutrition public health survey

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Record HDB-0003 · last verified 2026-08-05 · listed in Open datasets

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