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Epidemiology and Genomics Research Program

Diet History Questionnaire: Database Revision History

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.

The following details all additions and revisions made to the DHQ nutrient and food database. This revision history is provided as a reference for investigators who may have performed analyses with a previous release of the database. The contents of the current database are listed in Nutrient and Dietary Constituents and Pyramid Food Groups.


March 10, 2009 (dhq1.database.d031009.csv)

Errors in MPED and SUGAR values have been corrected. Flavanoid and isoflavone values have been added.

March 28, 2006 (dhq1_032806.csv)

The values for the NDS-R based nutrients Total dietary fiber, Insoluble fiber, and Soluble dietary fiber were corrected for coffee, regular and decaf.

August 17, 2004 (dhq1_081704.csv)

Glycemic Load was added to the database. All nutrients and groups included in previously released databases are also included; no changes were made to their values.

December 24, 2003 (dhq1_122403.csv)

The revisions made for this release include the addition of nutrients to the database and modifications to previously included nutrients using updated methods to compute units.

January 17, 2003 (dhq1_011703.csv)

This database contains all nutrients and groups included in previously released databases. No changes were made to their values. The following nutrients were added:

  • Vitamin D
  • Vitamin E Activity
  • Alpha-Tocopherol
  • Beta-Tocopherol
  • Delta-Tocopherol
  • Gamma-Tocopherol

A column labeled "Median FoodAmt" was removed from the file. This was an intermediate calculation that was not intended for distribution or use in analysis.

April 24, 2002 (dhq1_042402.csv)

This database includes all nutrients and groups released in the January 12, 2000 database. No changes were made to their values. The following nutrients were added:

  • Alpha-Carotene
  • Beta-Carotene
  • Beta-Cryptoxanthin
  • Lutein & Zeaxanthin
  • Lycopene

November 21, 2000 (dhq1_112100.csv)

This database was released with version 1.0 of the Diet*Calc software.