Diet History Questionnaire (Archive Version)

Alternate Version Available

You are viewing the web site for the original version of the DHQ. The latest version for the U.S. is the DHQ III; however, DHQ III does not yet have a Canadian version. The Canadian version of DHQ II is still available.

About the Questionnaire

Background
Validation Studies
Response Rates/Length of Questionnaire
Suggested Citations
International Applications

DHQ Nutrient Database

Development of the DHQ Database
Current Database File
Revision History
Nutrient/Dietary Constituents
Pyramid Food Groups

Web-based DHQ

Overview of DHQ*Web
Request a Study
DHQ*Web Demo

DHQ Paper-based Forms

English & Spanish Versions
Scanning Options & Cost Estimates
Data Entry Options
Canadian Version
Questionnaire Coding Guidelines

Data Analysis

Diet*Calc Analysis Software
Database Utility Program
Questionnaire Data Dictionary

Last Updated: 15 Mar, 2023