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碘是合成甲状腺激素所必需的微量元素 ,长期碘摄入量不足会导致甲状腺肿 ,胚胎期碘缺乏则会造成以脑发育障碍为主要特征的克汀病。通称碘缺乏病 (IDD) ,而长期碘摄入过量也会导致碘过多病。全民食盐加碘(universalsaltiodization,USI)是世界卫生组织和国际控制碘缺乏病委员会 (
Iodine is a trace element necessary for the synthesis of thyroid hormones, lack of long-term iodine intake will lead to goiter, iodine deficiency in embryonic period will result in brain development disorders as the main feature of cretinism. Commonly known as iodine deficiency disorders (IDD), and excessive intake of long-term iodine can lead to excessive iodine. Universal mineral iodization (universalsaltiodization, USI) is the World Health Organization and the International Commission on the Control of Iodine Deficiency (