Biofortification: A review of ex-ante models

• Ex ante biofortification studies should be chosen to appropriately address one of four general categories of research questions. • Ideal ex ante studies for examining biofortification should include or consider: 1) planning horizon; 2) distributional data; 3) aspects of supply and demand 4) and disaggregated estimates. • Biofortification is highly cost-effective according to World Bank criteria. • Biofortification can reduce the prevalence of inadequate micronutrient intake among children and non-pregnant women. • Biofortification is best regarded as a complementary intervention particularly for infants and pregnant women.