An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Research, Technology, Methods > methodology > research methods > surveys > nutrition surveys > dietary surveys > Total Diet Study
Fields of Study > nutrition > diet > diet study techniques > dietary surveys > Total Diet Study
Preferred Term:

Total Diet Study

Definition:
The TDS involves purchasing samples of food throughout the U.S., preparing the foods as they would be consumed (table-ready), and analyzing the foods to measure the levels of selected contaminants and nutrients. Dietary intakes of these analytes by the U.S. population are then calculated by multiplying the levels found in TDS foods by the average consumption amounts for each food. The overall strategy and goals of the TDS have remained constant since its inception in 1961, but the specific methodology has been revised periodically.
Concept Schemes:
NALT Full
Broader Concept:
dietary surveys
URI:
https://lod.nal.usda.gov/nalt/33479
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2012-11-30