Which survey is repeated every few years to assess health and nutrition?

The National Health and Nutrition Examination Survey (NHANES) is a comprehensive program designed to assess the health and nutritional status of adults and children in the United States. It combines interviews with physical examinations and laboratory tests, providing valuable data on the health and nutrition of the population. NHANES is repeated every few years, allowing researchers and policymakers to track changes over time and identify trends in dietary practices and health issues.

This survey's periodic nature makes it an essential tool for monitoring public health, evaluating food and nutrition policies, and guiding health education efforts. It encompasses a wide range of data related to dietary intake, health conditions, body measurements, and laboratory assessments, making it one of the primary sources of information for health and nutrition research.

Other surveys, such as the Behavioral Risk Factor Surveillance System (BRFSS) and the National Health Interview Survey, also play important roles in assessing various health aspects in the population but may not focus specifically on nutrition in the same comprehensive manner as NHANES. The CDC Vital Statistics provides essential data on births and deaths but does not focus on health and nutrition assessments.