A few countries from developing regions have implemented a policy for the fortification of staple foods with zinc. Mexico established a program whereby wheat and corn (maize) flour producers could voluntarily add zinc to their products (20mg/kg flour). Indonesia has also implemented a national program for the fortification of wheat flour, which includes addition of zinc. The fortification of condiments, such as fish sauce or seasoning powders in Asia, may serve as an additional vehicle for zinc fortification in the future. Several countries are adding zinc (and other micronutrients) to foods that are distributed in programs targeted to specific, vulnerable population groups. For example, in Chile and Argentina milk powder for use by young children is fortified with zinc, while in Mexico a milk powder-based supplement with added zinc is directed towards young children as well as pregnant and lactating women. As yet, there is an absence of information on the effectiveness of these programs to improve population zinc status.
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