一、無碘鹽的碘含量多少

為了補碘(dian)(dian)(dian)，市面上(shang)的鹽(yan)(yan)(yan)通(tong)常(chang)會(hui)添加(jia)碘(dian)(dian)(dian)酸鉀，這種鹽(yan)(yan)(yan)也叫加(jia)碘(dian)(dian)(dian)鹽(yan)(yan)(yan)，加(jia)碘(dian)(dian)(dian)鹽(yan)(yan)(yan)一(yi)般每100克鹽(yan)(yan)(yan)中(zhong)，含碘(dian)(dian)(dian)量為2500微克左右；不(bu)過對于部分不(bu)需(xu)要從(cong)鹽(yan)(yan)(yan)中(zhong)攝入碘(dian)(dian)(dian)的人來說，會(hui)食用無(wu)碘(dian)(dian)(dian)鹽(yan)(yan)(yan)，那(nei)么無(wu)碘(dian)(dian)(dian)鹽(yan)(yan)(yan)是一(yi)點(dian)碘(dian)(dian)(dian)都沒有嗎？無(wu)碘(dian)(dian)(dian)鹽(yan)(yan)(yan)會(hui)不(bu)會(hui)含有碘(dian)(dian)(dian)呢(ni)？

鹽(yan)的主要成分是氯(lv)化鈉(na)，鹽(yan)中的碘(dian)(dian)(dian)(dian)含(han)(han)量(liang)是額外添(tian)加(jia)的，無碘(dian)(dian)(dian)(dian)鹽(yan)一般(ban)碘(dian)(dian)(dian)(dian)含(han)(han)量(liang)為0；不過(guo)也有例(li)外的情況，鹽(yan)有海鹽(yan)、井鹽(yan)、礦鹽(yan)等多種(zhong)，其中無碘(dian)(dian)(dian)(dian)海鹽(yan)一般(ban)是指未加(jia)碘(dian)(dian)(dian)(dian)的海鹽(yan)，雖然沒有額外加(jia)碘(dian)(dian)(dian)(dian)，不過(guo)海鹽(yan)中本身(shen)會有一定的天(tian)然碘(dian)(dian)(dian)(dian)含(han)(han)量(liang)，這種(zhong)無碘(dian)(dian)(dian)(dian)鹽(yan)通常會標記，碘(dian)(dian)(dian)(dian)含(han)(han)量(liang)低于5mg/kg。

二、無碘鹽是不是不咸

食鹽是家庭不可或(huo)缺的(de)調料(liao)，對于高(gao)碘地區或(huo)需要控制碘攝入的(de)特殊疾病患者來說，可以考慮吃無碘鹽。鹽提供(gong)的(de)是咸味(wei)，那么無碘鹽有咸味(wei)嗎(ma)？

實際上，無碘鹽和普通(tong)的加(jia)碘(dian)鹽在咸(xian)度方面沒(mei)有什么太大(da)的區別，甚(shen)至(zhi)某種程(cheng)度上，無碘(dian)鹽還要(yao)稍微(wei)(wei)咸(xian)一些，因(yin)為鹽咸(xian)不(bu)咸(xian)跟加(jia)不(bu)加(jia)碘(dian)沒(mei)有關系，主要(yao)看的是氯(lv)化鈉的含量(liang)，無碘(dian)鹽是純鹽，不(bu)添加(jia)碘(dian)酸鉀，氯(lv)化鈉的含量(liang)比加(jia)碘(dian)鹽還要(yao)高一些，因(yin)此咸(xian)度會更高，使用(yong)無碘(dian)鹽的時候可(ke)以稍微(wei)(wei)少放(fang)一些鹽。

總的來說，無(wu)碘鹽并不是不咸(xian)，它(ta)和加碘鹽的味道沒有太(tai)大區別，如果不想吃太(tai)咸(xian)的話，可以考(kao)慮食用低鈉鹽。