Improving nutrition security through agriculture: an analytical framework based on national food balance sheets to estimate nutritional adequacy of food supplies
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An analytical framework is described for assessing the nutritional adequacy of national food supplies and the potential for addressing micronutrient gaps by increased crop production and crop diversity. The micronutrient contents of national food supplies of three countries (Bangladesh, Senegal, and Cameroon) were estimated using data from national food balance sheets. Population-adjusted nutrient requirements and identified nutrient short-falls, defined as not meeting the requirements of at least 80 % of the population, were also estimated. Linear programming models were used to determine a mix of crops that could meet the gaps the deficits of several nutrients while minimizing the use of additional agricultural land. Out of eight micronutrients included in the present analysis, six were identified as inadequate in Bangladesh and Senegal (vitamins A and C, riboflavin, folate, calcium, and zinc) and three were inadequate in Cameroon (vitamin A, calcium, and zinc). Adequacy of vitamins A and C could be met by increasing production of a few crops that are particularly dense in these nutrients (e.g., carrots or guava), which would necessitate only a small addition of agricultural land. Folate adequacy could be improved with increased production of legumes and green leafy vegetables, but with a greater requirement for agricultural land. Some micronutrient gaps, however, would probably have to be met by other means, such as enhanced livestock production, food fortification, biofortification, or imports. Despite the limitations of agriculture to meet the entire nutrient needs of a population, agricultural policy should consider the potential to improve nutrient adequacy with the crops currently available and by crop diversification.
KeywordsAgriculture Micronutrients Food balance sheet Nutritional adequacy Food security
The authors thank Shawn Baker and Shelly Sundberg of the Bill and Melinda Gates Foundation for their insightful comments of a draft version of the manuscript.
Conflict of Interest
The authors declare that they have no conflict of interest.
- Arsenault, J. E., Yakes, E. A., Islam, M. M., Hossain, M. B., Ahmed, T., Hotz, C., et al. (2012). Very low adequacy of micronutrient intakes by young children and women in rural Bangladesh is primarily explained by low food intake and limited diversity. Journal of Nutrition, 143(2), 197–203.CrossRefPubMedGoogle Scholar
- Engel-Stone, R., Haskell, M. J., Ndejebayi, A. O., Nankap, M., Erhardt, J. G., Gimou, M., et al. (2011). Plasma retinol-binding protein predicts plasma retinol concentration in both infected and unifected Cameroonian women and children. Journal of Nutrition, doi: 10.3945/jn.111.145805 . Epub 2011 Nov 2.
- Engel-Stone, R., Ndejebayi, A. O., Nankap, M., Killilea, D. W., & Brown, K. H. (2014). Stunting prevalence, plasma zinc concentrations, and dietary zinc intakes in a nationally representative sample suggest a high risk of zinc deficiency among women and young children in Cameroon. Journal of Nutrition, 10.3945/jn.113.188383 . Epub 2014 Jan 22.
- Fanzo, J., Hunter, D., Borelli, T., & Mattei, F. (Eds.). (2013). Diversifying food and diets: using agricultural biodiversity to improve nutrition and health. London and New York: Routledge.Google Scholar
- FAO. (2001). Food balance sheets: A handbook. Food and Agriculture Organization (FAO): Rome.Google Scholar
- FAO (2009). Food Balance Sheets. http://faostat.fao.org/site/354/default.aspx. Accessed August 8 2013.
- FAO. (2012). West African Food Composition Table. Rome: Food and Agriculture Organization.Google Scholar
- FAO (2014). FAOSTAT Glossary. http://faostat.fao.org/site/375/default.aspx. Accessed March 17 2014.
- Global Alliance for Nutrition (2013). Fortification in edible oil with vitamin A bill, 2013. http://www.gainhealth.org/press-releases/fortification-edible-oil-vitamin-bill-2013. Accessed October 1 2014.
- International Zinc Nutrition Consultative Group (IZiNCG), Brown, K. H., Rivera, J. A., Bhutta, Z., Gibson, R. S., King, J. C., et al. (2004). International Zinc Nutrition Consultative Group (IZiNCG) technical document #1. Assessment of the risk of zinc deficiency in populations and options for its control. Food and Nutrition Bulletin, 25(1), S99–S203.Google Scholar
- Iannotti, L., Cunningham, K., & Ruel, M. T. (2009). Improving diet quality and micronutrient nutrition. Homestead food production in Bangladesh. IFPRI Discussion Paper 00928. Washington, DC: International Food Policy Research Institute.Google Scholar
- icddr, b., UNICEF, B., GAIN, & Institute of Public Health and Nutrition (2013). National Micronutrients Status Survey 2011–12. Bangladesh: icddr,b.Google Scholar
- The Micronutrient Initiative& UNICEF. (2004). Vitamin and mineral deficiency: a global damage assessment report. Ottowa, Canada: Micronutrient Initiative.Google Scholar
- Institute of Medicine. (2000). Dietary reference intakes: applications in dietary assessment. Washington, DC: The National Academies Press.Google Scholar
- Institute of Medicine. (2006). Dietary reference intakes: the essential guide to nutrient requirements. Washington, DC: The National Academies Press.Google Scholar
- Site and Life (2013). Food Fortification in Africa: Progress to date and priorities moving forward. http://www.sightandlife.org/fileadmin/data/Magazine/2013/27_3_2013/food_fortification_in_africa.pdf. Accessed October 1 2014.
- Nelson, M., Black, A. E., Morris, J. A., & Cole, T. J. (1989). Between- and within-subject variation in nutrient intake from infancy to old age: estimating the number of days required to rank dietary intakes with desired precision. American Journal of Clinical Nutrition, 50, 155–167.PubMedGoogle Scholar
- U.S. Department of Agriculture (1975). Agriculture Handbook No. 102. Food yields summarized by different stages of preparation. Beltsville, MD.Google Scholar
- U.S. Department of Agriculture (2013). USDA National Nutrient Database for Standard Reference, Release 26. Beltsville, MD: Nutrient Data Laboratory Home Page, http://www.ars.usda.gove/ba.bhnrc/ndl.
- United Nations Department of Economic and Social Affairs, Population Division, & Population Estimates and Projections Section (2012). World Population Prospects: The 2012 Revision. http://esa.un.org/unpd/wpp/ASCII-Data/DISK_NAVIGATION_ASCII.htm. Accessed 1 Aug 2013.
- University of California at Berkeley International Minilist. WorldFood Dietary Assessment System, 2nd edition. http://www.fao.org/infoods/software_worldfood_en.stm. Accessed 1 Sep 2006.