Comparison of NHANES 2007-2010 methodologies for assessing dietary supplement use

Tuesday, September 23, 2014 — Poster Session III
12:00 p.m. – 2:00 p.m.	FAES Academic Center	NCI	EPIG-8

* FARE Award Winner

Authors

• HL Nicastro
• RL Bailey
• KW Dodd

Abstract

Over half of adults in the US use dietary supplements (DS). The National Health and Nutrition Examination Survey (NHANES) traditionally assessed DS use over the past 30 days using a DS questionnaire (DSQ). However, in NHANES 2007-2010, DS intake was also measured by 24-hour dietary recalls (24HR). We aimed to determine the impact on distributions (mean, % below the EAR, % above the UL) of total nutrient intake using food+ DSQ values alone or food+DSQ values calibrated to the relative frequency on the 24HR in NHANES 2007-2010. Distributions for 33 nutrients were modeled for DS users, non-users, and the total population using food intake from 24HR plus DS intake from DSQ values alone or DSQ values plus 24HR frequency in NHANES 2007-2010. 24HR-calibrated distributions showed similar means but different percentages of individuals with nutrient intakes >UL or

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