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What We Eat In America (WWEIA) Database
dataset
posted on 2024-02-08, 18:04 authored by Centers for Disease Control and Prevention, National Center for Health StatisticsWhat We Eat in America (WWEIA) is the dietary intake interview component of the National Health and Nutrition Examination Survey (NHANES). WWEIA is conducted as a partnership between the U.S. Department of Agriculture (USDA) and the U.S. Department of Health and Human Services (DHHS). Two days of 24-hour dietary recall data are collected through an initial in-person interview, and a second interview conducted over the telephone within three to 10 days. Participants are given three-dimensional models (measuring cups and spoons, a ruler, and two household spoons) and/or USDA's Food Model Booklet (containing drawings of various sizes of glasses, mugs, bowls, mounds, circles, and other measures) to estimate food amounts. WWEIA data are collected using USDA's dietary data collection instrument, the Automated Multiple-Pass Method (AMPM). The AMPM is a fully computerized method for collecting 24-hour dietary recalls either in-person or by telephone.
For each 2-year data release cycle, the following dietary intake data files are available:
- Individual Foods File - Contains one record per food for each survey participant. Foods are identified by USDA food codes. Each record contains information about when and where the food was consumed, whether the food was eaten in combination with other foods, amount eaten, and amounts of nutrients provided by the food.
- Total Nutrient Intakes File - Contains one record per day for each survey participant. Each record contains daily totals of food energy and nutrient intakes, daily intake of water, intake day of week, total number foods reported, and whether intake was usual, much more than usual or much less than usual. The Day 1 file also includes salt use in cooking and at the table; whether on a diet to lose weight or for other health-related reason and type of diet; and frequency of fish and shellfish consumption (examinees one year or older, Day 1 file only).
DHHS is responsible for the sample design and data collection, and USDA is responsible for the survey’s dietary data collection methodology, maintenance of the databases used to code and process the data, and data review and processing. USDA also funds the collection and processing of Day 2 dietary intake data, which are used to develop variance estimates and calculate usual nutrient intakes.
Resources in this dataset:
Resource Title: What We Eat In America (WWEIA) main web page.
File Name: Web Page, url: https://www.ars.usda.gov/northeast-area/beltsville-md-bhnrc/beltsville-human-nutrition-research-center/food-surveys-research-group/docs/wweianhanes-overview/
Contains data tables, research articles, documentation data sets and more information about the WWEIA program.
(Link updated 05/13/2020)
Funding
USDA-ARS
History
Data contact name
Moshfegh, Alanna J.Data contact email
Alanna.Moshfegh@ars.usda.govPublisher
Food Surveys Research GroupTemporal Extent Start Date
2001-01-01Temporal Extent End Date
2012-12-31Theme
- Not specified
Geographic Coverage
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location - description
United StatesISO Topic Category
- health
National Agricultural Library Thesaurus terms
calcium; magnesium; nutrient databanks; phosphorus; food intake; National Health and Nutrition Examination Survey; United States; USDA; Department of Health and Human Services; diet recall; models; data collection; foods; surveys; nutrients; energy; cooking; fish; shellfish; databasesOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
ARS National Program Number
- 107
Pending citation
- No
Public Access Level
- Public
