Arsenic in Infant Rice Cereal: What FDA's 100 ppb Action Level Does and Doesn't Tell Parents
When parents look up arsenic in infant rice cereal, the number they usually find is 100. The guidance identifies an action level of 100 micrograms per kilogram (µg/kg) or 100 parts per billion (ppb) for inorganic arsenic in infant rice cereals. Many people read that number as the point where…