Vitamin D: intake of Americans from diet and supplements (632.10)

Abstract

Vitamin D (VitD) is the topic of intense public and scientific interest. Inadequate levels of VitD are associated with osteoporosis, and may play a role in certain cancers, diabetes, cardiovascular, and autoimmune diseases. The objective of this study is to quantify the mean (±SE) intake of VitD from diet and dietary supplements (DS) using day 1 dietary intake data of individuals 2 years and over (n= 9,042) from What We Eat in America (WWEIA), NHANES 2009‐2010. DS usage was determined using the 2009‐2010 NHANES day 1 24‐hour dietary supplements data. Mean daily VitD intake from food/beverages was 5.3 (± 0.11) mcg per person. More than one‐fourth of individuals (28%) consumed a DS containing VitD, increasing their total daily VitD intake by fourfold. Their mean daily VitD intake from food/beverages and from DS containing VitD was 5.6 (± 0.21) mcg and 24.5 (± 1.93) mcg, respectively, resulting in a mean total daily dietary intake of 30.1 (±1.99) mcg. Based on WWEIA Food Categories, the largest contributor of VitD to the diet regardless of DS usage was milk (49%), followed by fish (10%), eggs (7%), and ready‐to‐eat cereals (6%). Additional results on VitD intake by diet and DS usage will be described for select population groups.