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. 2018 Aug 13;100(5):1285–1301. doi: 10.1093/ajae/aay059

Table 4.

Nutrient Requirements Contributing to CoNA in Ghana, Mar 2009–Dec 2014

Nutrient 2009–2014
2009
2010
2011
2012
2013
2014
%EAR SPE %EAR SPE %EAR SPE %EAR SPE %EAR SPE %EAR SPE %EAR SPE
Always limiting nutrients
 Energy 100% 0.344 100% 0.423 100% 0.344 100% 0.402 100% 0.391 100% 0.213 100% 0.302
 Vitamin B12 100% 0.029 100% 0.032 100% 0.029 100% 0.030 100% 0.027 100% 0.027 100% 0.032
 Vitamin A 100% 0.467 100% 0.420 100% 0.448 100% 0.407 100% 0.470 100% 0.548 100% 0.500
 Vitamin E 100% 0.086 100% 0.109 100% 0.116 100% 0.082 100% 0.049 100% 0.107 100% 0.058
Sometimes limiting nutrients
 Calcium 104% 0.074 114% 0.016 107% 0.063 100% 0.079 103% 0.062 100% 0.104 100% 0.109

Note: Data shown are mean fraction of the estimated average requirement for an adult woman of 55 kg at an energy level of 2,000 kcal/day consumed each day (%EAR). The mean shadow price elasticity (SPE) of each nutrient when it is limiting. SPE is defined as the percentage change of CoNA if the EAR for that nutrient were increased by 1%.