Edward J.M. Joy
Dietary mineral supplies in Malawi: spatial and socioeconomic assessment
Joy, Edward J.M.; Kumssa, Diriba B.; Broadley, Martin R.; Watts, Michael J.; Young, Scott D.; Chilimba, Allan D. C.; Ander, E. Louise
Authors
Dr DIRIBA KUMSSA DIRIBA.KUMSSA1@NOTTINGHAM.AC.UK
Leverhulme Research Fellow
MARTIN BROADLEY MARTIN.BROADLEY@NOTTINGHAM.AC.UK
Professor of Plant Nutrition
Michael J. Watts
Scott D. Young
Allan D. C. Chilimba
LOUISE ANDER Louise.Ander1@nottingham.ac.uk
Principal Research Fellow
Abstract
© 2015 Joy et al. Background: Dietary mineral deficiencies are widespread globally causing a large disease burden. However, estimates of deficiency prevalence are often only available at national scales or for small population sub-groups with limited relevance for policy makers. Methods: This study combines food supply data from the Third Integrated Household Survey of Malawi with locally-generated food crop composition data to derive estimates of dietary mineral supplies and prevalence of inadequate intakes in Malawi. Results: We estimate that >50 % of households in Malawi are at risk of energy, calcium (Ca), selenium (Se) and/or zinc (Zn) deficiencies due to inadequate dietary supplies, but supplies of iron (Fe), copper (Cu) and magnesium (Mg) are adequate for >80 % of households. Adequacy of iodine (I) is contingent on the use of iodised salt with 80 % of the poorest rural households living in areas with non-calcareous soils. Prevalence of inadequate dietary supplies was greater in rural than urban households for all nutrients except Fe. Interventions to address dietary mineral deficiencies were assessed. For example, an agronomic biofortification strategy could reduce the prevalence of inadequate dietary Se supplies from 82 to 14 % of households living in areas with low-pH soils, including from 95 to 21 % for the poorest subset of those households. If currently-used fertiliser alone were enriched with Se then the prevalence of inadequate supplies would fall from 82 to 57 % with a cost per alleviated case of dietary Se deficiency of ~ US$ 0.36 year-1. Conclusions: Household surveys can provide useful insights into the prevalence and underlying causes of dietary mineral deficiencies, allowing disaggregation by spatial and socioeconomic criteria. Furthermore, impacts of potential interventions can be modelled.
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 7, 2015 |
Online Publication Date | Dec 19, 2015 |
Publication Date | Dec 19, 2015 |
Deposit Date | Jan 28, 2016 |
Publicly Available Date | Jan 28, 2016 |
Journal | BMC Nutrition |
Electronic ISSN | 2055-0928 |
Publisher | Springer Verlag |
Peer Reviewed | Peer Reviewed |
Volume | 1 |
Article Number | 42 |
DOI | https://doi.org/10.1186/s40795-015-0036-4 |
Public URL | https://nottingham-repository.worktribe.com/output/768961 |
Publisher URL | http://bmcnutr.biomedcentral.com/articles/10.1186/s40795-015-0036-4 |
Files
art%3A10.1186%2Fs40795-015-0036-4.pdf
(4 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
You might also like
Impact of rising body weight and cereal grain food processing on human magnesium nutrition
(2020)
Journal Article
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search