There is a lot of material available on micronutrient intervention costs, but the quality is rather varied. Two places to start would be the Copenhagen Consensus Statement from 2008 [url]http://www.copenhagenconsensus.com/Default.aspx?ID=1402[/url] And a review by Fiedler et al. from 2008 'A review of the micronutrient intervention cost literature: program design and policy lessons' Int.J Health Plann.Manage., 23, 373-397