Well...its an interesting argument. How do you feel about salt? Humans lack iodine in their diet and it was decided long ago that salt was the best place to add iodine. What happens when you decide the government are wrong and nothing should be added? Check out India and the misconception (thanks to Ghandhi) that salt should stay natural and untouched. The states that don't have iodised salt report an increase in health problems for children.