5.1.5.8 SaltThe success of salt iodization programmes (seesection 5.3.2.1) has led severalcountries to consider using salt as a vehicle for iron fortification. In practice, thismeans the double fortification of salt, i.e. with iron and iodine. Promisingapproaches that are already being tested include the addition of encapsulatedferrous fumarate, encapsulated ferrous sulfate (see section 1.3.2.3) or ferricpyrophosphate (at twice the concentration). Encapsulation is necessary asferrous sulfate, ferrous fumarate and other soluble iron compounds very quicklycause a yellow or red/brown discoloration in the moist, low quality salt that iscurrently used in many developing countries. The main disadvantage of theencapsulation options is the increase in the price of the fortified product, whichcan be by as much as 30%
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