"A simple, effective way to improve the health of the poor is to add iodine to the salt supply", says Nicholas D. Kristof in a video to accompany his New York Times article on salt iodization, published in December 2008.

"An educated guess is that iodine deficiency results in a needless loss of more than 1 billion I.Q. points around the world", says Kristoff. "Probably no other technology ... offers as large an opportunity to improve lives ... at such low cost and in such a short time."