人怎么科学的食用碘盐?

2025-03-15 23:10:06
推荐回答(1个)
回答1:

碘是人体必需的微量元素,它是合成甲状腺素的主要原料,与智力发育有关,因此被称为智慧元素。当然,碘只能防治智力低下,并不能在原有正常智力的基础上提高智商,切不可轻信某些广告中的不实之词。为了防止碘缺乏病,在日常饮食中食用碘盐是重要措施之一,即在原盐中以1∶20000的比例掺入含碘的碘酸钾。不过,在食用碘盐时应注意科学处理,才能收到确切效果。

1.碘盐应随吃随买,不宜久存,买入碘盐后最好贮存于加盖的坛罐或带色的玻璃容器内,避免与空气和阳光接触。

2.炒菜熬汤时应先下菜,后放盐,切不可用碘盐爆锅。因为碘盐受热后碘即被分解和挥发,降低食用率。据化验分析表明,炒菜时热锅放碘盐,碘的食用率仅为10%;炒菜中间放碘盐,碘食用率为60%;菜将出锅时再放碘盐,碘食用率达90%,而凉菜中放碘盐,碘的食用率可达100%。

3.尽量用植物油炒菜。因为植物油性质比较稳定,不易与碘发生化学变化,导致碘失效。

4.烹调中不宜多加醋。因为碘在酸性环境中容易被破坏,故炒菜时如过多加醋可降低碘食用率。

最后需要提醒的是,个别高碘地区的居民不宜食用碘盐,以免诱发高碘性甲状腺肿。至于原来有甲亢的人,当然不能食用碘盐,也不宜食用含碘食品,如海带、紫菜和某些海产品。

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