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Micronutrient intake and adequacy in women of child-bearing age (WCBA) (18-50y) in Ireland

Published online by Cambridge University Press:  07 March 2019

J. Walton ,
L. Kehoe ,
B.A. McNulty ,
A.P. Nugent  and
A. Flynn
J. Walton
Affiliation:
Dept. Biological Sciences, Cork Institute of Technology, Ireland School of Food and Nutritional Sciences, University College Cork, Ireland
L. Kehoe
Affiliation:
School of Food and Nutritional Sciences, University College Cork, Ireland
B.A. McNulty
Affiliation:
UCD Institute of Food and Health, University College Dublin, Ireland
A.P. Nugent
Affiliation:
UCD Institute of Food and Health, University College Dublin, Ireland Institute for Global Food Security, Queens University Belfast, N. Ireland
A. Flynn
Affiliation:
School of Food and Nutritional Sciences, University College Cork, Ireland
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Abstract

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Proceedings of the Nutrition Society , Volume 78 , Issue OCE1: Winter Meeting, 4–5 December 2018, Optimal diet and lifestyle strategies for the management of cardio-metabolic risk , 2019 , E40
Copyright
Copyright © The Authors 2019 

There is an increasing recognition that women's pre-conceptual health (including nutritional status) sets the foundation for a successful pregnancy and the subsequent lifelong health of the baby. Almost half of pregnancies in Ireland are unplanned and dietary recommendations for women of child-bearing age (WCBA) are not differentiated by pregnancy intention. A daily 400μg folic acid supplement is recommended for all WCBA to reduce the risk of neural tube defect in an occurring pregnancy(1). The objective of this study was to estimate micronutrient intake, adequacy of intake and compliance with the folic acid supplement recommendation in WCBA (18-50y) in Ireland. Analyses were based on the National Adult Nutrition Survey (NANS) (2008-2010) (www.iuna.net). A 4 day semi-weighed food record was used to collect food and beverage intake data (including nutritional supplement use) from a nationally representative sample of 1500 adults (487 women (18-50y)). Nutrient analyses were carried out using UK(2) and Irish(Reference Black, Ireland and Møller3) food composition data. Usual intakes of nutrients were calculated via the NCI-method using SAS© Enterprise Guide(Reference Tooze, Kipnis and Buckman4). Adequacy of micronutrient intake was assessed using the most recently published estimated average requirements (EAR) from the European Food Safety Authority (EFSA)(5) or the UK Department of Health(6) and the Institute of Medicine's EAR in the case of vitamin D and iodine(7, 8). Under-reporters (32 % of sample), defined using minimum energy intake cut-off points, calculated as multiples of BMR were excluded from analyses.

Only 6 % of WCBA complied with the recommendation to take a folic acid supplement (400μg) daily to supplement their dietary folate intake. Furthermore, a significant proportion of women of child-bearing age had inadequate intakes of important nutrients including vitamins A, D & C, riboflavin, dietary folate equivalents, calcium and iodine. Strategies to increase micronutrient intakes and improve compliance with the folic acid supplement recommendation are needed to improve pre-conceptual health status for women of WCBA in Ireland.

The National Adult Nutrition Survey was funded by the Irish Department of Agriculture, Fisheries & Food under the Food for Health Research Initiative (2007–2012).

Table 1. Usual micronutrient intakes in women of childbearing age and the proportion of women with micronutrient intakes below the estimated average requirement (EAR) excluding under-reporters (n 335)

References

1.Food Safety Authority of Ireland (2011) Dublin: The Food Safety Authority.Google Scholar
2.Food Standards Agency (2002) Cambridge: Royal Society of Chemistry.Google Scholar
3.Black, LJ, Ireland, J, Møller, A et al. (2011) J Food Comp Anal 24, 1017–1023.Google Scholar
4.Tooze, JA, Kipnis, V, Buckman, DW et al. (2010) Stat Med. 29 (27): 2857–68.Google Scholar
5.EFSA (2017) EFSA J 14 (12): e15121E.Google Scholar
6.UK Department of Health (1991). London: HMSO.Google Scholar
7.Institute of Medicine (2011) Washington, DC: The National Academies Press.Google Scholar
8.Institute of Medicine (2011) Washington, DC: The National Academies Press.Google Scholar
Figure 0

Table 1. Usual micronutrient intakes in women of childbearing age and the proportion of women with micronutrient intakes below the estimated average requirement (EAR) excluding under-reporters (n 335)