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碘缺乏病是困扰世界许多国家的公共卫生问题。据统计，全世界有１２亿人生活在碘缺乏地区，在我国缺碘人口达４．５亿之多。目前国内外普遍采取的补碘措施有两个：一是食用碘盐。但是由于碘盐的稳定性较差，从生产、储运到烹调过程中约有７６％的碘损失，加之人们出于健康的考
Iodine deficiency disorders are public health problems that plague many countries in the world. According to statistics, there are 1.2 billion people in the world living in iodine deficiency areas, with as many as 450 million people in China suffering from iodine deficiency. At present, there are generally two measures for supplementing iodine at home and abroad: one is the consumption of iodized salt. However, due to the poor stability of iodized salt, there is about 76% iodine loss from production, storage and transportation to the cooking process,