The film investigates the theory that the addition of fluoride to our drinking water is not as beneficial to dental health as originally thought, and may in fact be one of the causes of a cornucopia of neurological diseases that have arisen over the last several decades in America. 关于fluoridated water的纪录片，没有说什么特别technical的东西。片里有一点小错误，里面说蒸馏不能去除氟化物，但其实蒸馏是可以去除氟化物的，煮沸不能。
剧情介绍
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