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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



* FARE Award Winner


  • HL Nicastro
  • RL Bailey
  • KW Dodd


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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