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United States Department of Agriculture

Agricultural Research Service

Overview
What is FNDDS?
FNDDS is a database that provides the nutrient values for foods and beverages reported in What We Eat in America, the dietary intake component of the National Health and Nutrition Examination Survey.
How can FNDDS be used?
Because FNDDS is used to generate the nutrient intake data files for What We Eat in America, NHANES, it is not required to estimate nutrient intakes from the survey. FNDDS is made available for researchers to review the nutrient profiles for specific foods and beverages as well as their associated portions and recipes. Such detailed information makes it possible for researchers to conduct enhanced analysis of dietary intakes. One example might be, looking across all breakfast cereals, what are the nutrient attributes of those most frequently consumed? FNDDS can also be used in other dietary research studies to determine the amounts of nutrients/food components in foods and beverages.
Applications of FNDDS
FNDDS Release
FNDDS is released every two-years in conjunction with the WWEIA, NHANES dietary data release. The FNDDS is available for free download from the FSRG website. To receive an email notice from FSRG when a new version of FNDDS or other survey related products are released, join the FSRG listserv.
FNDDS Data Files
FNDDS consists of up to 12 separate but linked data files. See Files at a Glance for what’s included in each file. The FNDDS documentation provides information on the database development and updates, detailed definitions, and formatting of the data files. Each version of FNDDS is available in three formats -
  • Microsoft Access database®
  • SAS® dataset
  • ASCII delimited text files

Frequently Asked Questions
How does FNDDS differ from dietary intake data in What We Eat in America, NHANES?
The What We Eat in America (WWEIA), NHANES dietary intake data are based on 24-hour recalls collected using the USDA Automated Multiple-Pass Method. FNDDS provides the nutrient profiles for every food and beverage reported in WWEIA, NHANES.
How does FNDDS differ from the USDA National Nutrient Database for Standard reference (SR)?
FNDDS is designed for analysis of dietary intake data and contains no missing nutrient values. SR is designed for dissemination of food composition data. The FNDDS represents foods/beverages as consumed by the U.S. population and contains many additional items not in SR.
What are the differences between each release of FNDDS?
For each new version of FNDDS, foods/beverages, portions, and nutrient values are reviewed and updated. Foods/beverages are added based on changes in consumption and the marketplace, new or updated nutrients are provided, and other enhancements are added. FNDDS is released every 2 years in conjunction with the What We Eat in America, NHANES dietary data release. To receive an email notice from FSRG when a new version of FNDDS is released, join the FSRG listserv.
What nutrients are included in FNDDS?
There are 65 nutrient and food components included in FNDDS. The number of nutrients has increased over the years. Click on List of Nutrients to see the full list and the years they were added.
Can WWEIA, NHANES data be analyzed with a version of FNDDS created for a different survey period?
FNDDS is updated and released every 2 years in conjunction with the What We Eat in America, NHANES dietary data release. Each version is developed for use with a specific survey period to reflect the foods/beverages and corresponding nutrient values for that timeframe. FNDDS is not required to use the dietary intake data files. However, when FNDDS is used for additional analysis or reference, use the version associated with a given survey.
How often will the FNDDS be updated? How can users know when the database is updated?
FNDDS is updated and released every 2 years in conjunction with the What We Eat in America, NHANES dietary data release. To receive an email notice from FSRG when a new version of FNDDS is released, join the FSRG listserv.

Last Modified: 12/4/2014