. Author manuscript; available in PMC: 2016 Feb 8.

Published in final edited form as: J Nutr. 2013 Jan 30;143(4):486–492. doi: 10.3945/jn.112.169987

TABLE 3.

Percentage of pregnant women taking supplements by supplement type and intakes of folic acid and iron supplementation among pregnant women in NHANES 1999–2006¹

	Unweighted n	Weighted %
Any folic acid-containing supplement	970	73.9 ± 2.6
Any iron-containing supplement	949	72.5 ± 2.5
Single vitamin	107	8.4 ± 1.5
Single mineral	183	11.1 ± 1.6
Multivitamin/mineral	962	74.7 ± 2.4
Antacid	301	28.4 ± 2.4
		μg/d
Supplemental folic acid intake	761	817 ± 27.6
Supplemental iron intake²	754	47.7 ± 4.2

Values are percentage ± SE or mean ± SE based on weighted data.