National Health and Nutrition Examination Survey

Changes to the 2007-2008 NHANES Dietary Supplement files

Dietary Supplement Use (30 day)

The 2007-2008 dietary supplement use 30-day files have been updated and given new, descriptive names. The new files still include all variables in past cycles, and include 33 new nutrients/dietary component variables. Analysts are encouraged to read the documentation in order to understand the new names and structure of the files as well as the new variables. Past release cycles will be re-released in the future with the same updates as the 2007-2008.

Table 1. Dietary Supplement Use (30 day) File names for each NHANES cycle.
File Description	File Name	Data Release Cycle
¹ DSQTOT_E replaces DSQ1_E as the updated 2007-2008 Dietary Supplement Use ² DSQIDS_E replaces DSQ2_E as the updated 2007-2008 Dietary Supplement Use
Total Dietary Supplements File	DSQTOT_E¹	2007-2008
File 1: Supplement Counts	DSQ1_D	2005-2006
File 1: Supplement Counts	DSQ1_C	2003-2004
File 1: Supplement Counts	DSQ1_B	2002-2001
File 1: Supplement Counts	DSQFILE1	1999-2000
Individual Dietary Supplements File	DSQIDS_E²	2007-2008
File 2: Participant's Use of Supplement	DSQ2_D	2005-2006
File 2: Participant's Use of Supplement	DSQ2_C	2003-2004
File 2: Participant's Use of Supplement	DSQ2_B	2002-2001
File 2: Participant's Use of Supplement	DSQFILE2	1999-2000

The NHANES Dietary Supplement Database (NHANES-DSD)

The NHANES-DSD release consists of three datasets which contain information on products: Dietary Supplement Product Information (DSPI), Dietary Supplement Ingredient Information (DSII), and Dietary Supplement Blend Information (DSBI). These files describe all products reported from 1999-2008 by NHANES participants.

Table 2. NHANES Dietary Supplement Database file name changes
Old File Description	Old File Name	New File Description	New File Name
File 3: Supplement Information	DSQ3_E	Dietary Supplement Product Information	DSPI
File 4: Ingredient Information	DSQ4_E	Dietary Supplement Ingredient Information	DSII
File 5: Supplement Blend	DSQ5_E	Dietary Supplement Blend Information	DSBI