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. 2012 Nov 29;7(11):e50565. doi: 10.1371/journal.pone.0050565

Figure 1. Associations between the national prevalence of inadequate zinc intake as estimated by different nutrient composition databases.

Figure 1

Estimates are based on the Composite, WorldFood System International Mini-list (IML) and Nutrition Data System for Research (NDSR) nutrient composition databases. Physiological requirements developed by the International Zinc Nutrition Consultative Group (IZiNCG), the Miller equation for absorbed zinc and a 25% inter-individual CV in intake are constant across estimates. The dashed lines represent the linear regression lines and the solid line represents the line of identity (intercept = 0, slope = 1). N = 188 countries.