What is What We Eat in America, NHANES, and when did it begin?
What We Eat in America (WWEIA), NHANES is a national food survey conducted as a partnership between the U.S. Department of Health and Human Services (DHHS) and the U.S. Department of Agriculture (USDA). WWEIA represents the integration of two nationwide surveys – USDA’s Continuing Survey of Food Intakes by Individuals (CSFII) and HHS’ NHANES. Under the integrated framework, DHHS is responsible for the sample design and data collection. USDA is responsible for the survey’s dietary data collection methodology, development and maintenance of the food and nutrient databases used to code and process the data, and data review and processing. The two surveys were integrated in 2002.
