What do U.S. government agencies recommend?
KI is endorsed for radiation protection by the U.S. Food and Drug Administration. The Department of Health and Human Services has included KI in the National Pharmaceutical Stockpile for use in health emergencies. In December 2001, the Nuclear Regulatory Commission wrote to the 34 states that either have a functioning nuclear power plant or are within 10 miles of another state’s plant; the letter offered free KI pills for each resident within the 10-mile “emergency zone” surrounding active plants, and an extra supply to be provided for transients.