以下是来自美国盐业协会关于碘盐与抗辐射之间作用的原文报道：
While iodized table salt provides a myriad of critical health benefits for children and adults, the Salt Institute says it should not be used as a primary defense against radioactive fallout. A person would have to consume three and one-half pounds of table salt a day to reach the 130 mg of iodine needed for protection from radioactive fallout. In China, worried shoppers have been stripping stores of salt with the belief that the iodine in salt can prevent radiation exposure from Japan’s crippled nuclear plants.
翻译成中文之大意：
虽然碘盐对儿童和成人的健康都有着极重要的好处，但（美国）盐业协会说，碘盐不应该主要用以抗微尘核辐射。一个人每天需要消耗3.5磅（约1.59公斤） 日常碘盐才能够吸收到130毫克的碘来抵抗微尘核辐射。在中国，担忧的消费者已经对商店里的盐抢购一空，因为他们相信碘盐能够防止从日本受损核电厂带过来的微尘核辐射。
我理解人们面对灾难可能来临之前的求生反应，但需要一点理智。假使有微尘核辐射，日常的碘盐摄入量不足以发挥作用，至于四川，云南也在抢盐，纯粹是跟风从众心理作怪。爱较真的同学们可以点击这里下载原文（PDF）（新浪共享），或者直接Google。