一、無碘鹽的碘含量多少

為了(le)補碘(dian)(dian)(dian)(dian)(dian)(dian)，市面上的鹽(yan)(yan)通常會添加碘(dian)(dian)(dian)(dian)(dian)(dian)酸鉀，這種(zhong)鹽(yan)(yan)也(ye)叫加碘(dian)(dian)(dian)(dian)(dian)(dian)鹽(yan)(yan)，加碘(dian)(dian)(dian)(dian)(dian)(dian)鹽(yan)(yan)一(yi)般(ban)每100克(ke)鹽(yan)(yan)中，含碘(dian)(dian)(dian)(dian)(dian)(dian)量為2500微(wei)克(ke)左右；不(bu)過對于部(bu)分(fen)不(bu)需要從鹽(yan)(yan)中攝入(ru)碘(dian)(dian)(dian)(dian)(dian)(dian)的人來說，會食用無(wu)碘(dian)(dian)(dian)(dian)(dian)(dian)鹽(yan)(yan)，那么(me)無(wu)碘(dian)(dian)(dian)(dian)(dian)(dian)鹽(yan)(yan)是一(yi)點碘(dian)(dian)(dian)(dian)(dian)(dian)都沒有(you)嗎(ma)？無(wu)碘(dian)(dian)(dian)(dian)(dian)(dian)鹽(yan)(yan)會不(bu)會含有(you)碘(dian)(dian)(dian)(dian)(dian)(dian)呢？

鹽(yan)(yan)的主要成分(fen)是(shi)氯化鈉，鹽(yan)(yan)中(zhong)的碘(dian)(dian)含(han)量(liang)(liang)是(shi)額外(wai)(wai)添加(jia)的，無碘(dian)(dian)鹽(yan)(yan)一(yi)般碘(dian)(dian)含(han)量(liang)(liang)為0；不(bu)過也有例外(wai)(wai)的情況，鹽(yan)(yan)有海鹽(yan)(yan)、井鹽(yan)(yan)、礦鹽(yan)(yan)等多種，其中(zhong)無碘(dian)(dian)海鹽(yan)(yan)一(yi)般是(shi)指未(wei)加(jia)碘(dian)(dian)的海鹽(yan)(yan)，雖然沒有額外(wai)(wai)加(jia)碘(dian)(dian)，不(bu)過海鹽(yan)(yan)中(zhong)本身會有一(yi)定(ding)的天然碘(dian)(dian)含(han)量(liang)(liang)，這(zhe)種無碘(dian)(dian)鹽(yan)(yan)通常(chang)會標(biao)記，碘(dian)(dian)含(han)量(liang)(liang)低(di)于5mg/kg。

二、無碘鹽是不是不咸

食鹽(yan)(yan)是家庭(ting)不可或(huo)缺(que)的調料，對于高碘地區或(huo)需要控制碘攝入的特殊疾(ji)病患者來說，可以考(kao)慮吃無碘鹽(yan)(yan)。鹽(yan)(yan)提供的是咸(xian)味，那么無碘鹽(yan)(yan)有咸(xian)味嗎？

實際上，無碘鹽和普通(tong)的(de)加(jia)(jia)碘鹽(yan)在咸(xian)度方(fang)面沒有什么(me)太(tai)大的(de)區(qu)別，甚至(zhi)某種程度上，無(wu)碘鹽(yan)還要(yao)稍微(wei)咸(xian)一些(xie)，因(yin)為鹽(yan)咸(xian)不(bu)(bu)咸(xian)跟加(jia)(jia)不(bu)(bu)加(jia)(jia)碘沒有關系，主要(yao)看的(de)是氯化鈉(na)的(de)含量，無(wu)碘鹽(yan)是純鹽(yan)，不(bu)(bu)添加(jia)(jia)碘酸鉀，氯化鈉(na)的(de)含量比加(jia)(jia)碘鹽(yan)還要(yao)高一些(xie)，因(yin)此咸(xian)度會(hui)更高，使用無(wu)碘鹽(yan)的(de)時候可以稍微(wei)少(shao)放一些(xie)鹽(yan)。

總的來說，無碘鹽并(bing)不是不咸，它(ta)和加碘鹽的味道(dao)沒有太大區別(bie)，如果(guo)不想吃太咸的話，可以考(kao)慮(lv)食用低(di)鈉鹽。