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Cited by 152Folate and B Vitamins ResearchPregnancy and Medication ImpactNutrition and Health Studies

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

Dietary Supplement Use and Folate Status during Pregnancy in the United States

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Branum, Amy M., Bailey, Regan, Singer, Barbara J.·2013·The Journal of Nutrition
DOI 10.3945/jn.112.169987PMC PMC4745881
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Abstract

Adequate folate and iron intake during pregnancy is critical for maternal and fetal health. No previous studies to our knowledge have reported dietary supplement use and folate status among pregnant women sampled in NHANES, a nationally representative, cross-sectional survey. We analyzed data on 1296 pregnant women who participated in NHANES from 1999 to 2006 to characterize overall supplement use, iron and folic acid use, and RBC folate status. The majority of pregnant women (77%) reported use of a supplement in the previous 30 d, most frequently a multivitamin/-mineral containing folic acid (mean 817 μg/d) and iron (48 mg/d). Approximately 55-60% of women in their first trimester reported taking a folic acid- or iron-containing supplement compared with 76-78% in their second trimester and 89% in their third trimester. RBC folate was lowest in the first trimester and differed by supplement use across all trimesters. Median RBC folate was 1628 nmol/L among users and 1041 nmol/L among nonusers. Among all pregnant women, median RBC folate increased with trimester (1256 nmol/L in the first, 1527 nmol/L in the second, and 1773 nmol/L in the third). Given the role of folic acid in the prevention of neural tube defects, it is notable that supplement use and median RBC folate was lowest in the first trimester of pregnancy, with 55% of women taking a supplement containing folic acid. Future research is needed to determine the reasons for low compliance with supplement recommendations, particularly folic acid, in early pregnancy.

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Metadata

Authors
Branum, A. M., Bailey, R., & Singer, B. J.
Affiliations
  • Centers for Disease Control and Prevention (US)
  • National Institutes of Health (US)
  • University of Maryland, Baltimore (US)
Corresponding author
Branum, Amy M.
ORCID
Bailey, Regan
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2013-04
Volume
143
Issue
4
Pages
486-492
ISSN
0022-3166 (ISSN-L)
DOI
10.3945/jn.112.169987
PMC
PMC4745881
OpenAlex
W2160195996
Cited by
152
References
32
Citations by year
2026: 2 · 2025: 6 · 2024: 8 · 2023: 7 · 2022: 12 · 2021: 12 · 2020: 14 · 2019: 10 · 2018: 18 · 2017: 14 · 2016: 16 · 2015: 15 · 2014: 12 · 2013: 6
FWCI
13.40
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (CC999999)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Folate and B Vitamins Research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Pregnancy and Medication Impact
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
Keywords
supplement use, folate status, pregnancy, folic acid supplementation, iron supplementation, red blood cell folate, multivitamin and mineral supplements, trimester differences, neural tube defects, supplement compliance, NHANES
MeSH terms
Adult, Age Factors, Educational Status, Erythrocytes, Ethnicity, Female, Folic Acid, Humans, Iron, Nutrition Surveys, Nutritional Status, Pregnancy, Pregnancy Trimester, First, Pregnancy Trimester, Second, Pregnancy Trimester, Third, Prenatal Care, Dietary Supplements

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