The Economist recently ran a story on "Diet and the unborn child" emphasizing the importance of omega-3 fatty acids in fetal development. Absolutely valid. Missing, however, was any mention of the importance of iodine in the diet of expectant mothers. If The Economist's story is correct that omega-3 can raise children's IQ by 3 points, that's great -- and about one fourth the estimated 13 IQ points that proper iodine nutrition confers. Eat that iodized salt. For more, see the Salt Institute webpage on Iodized Salt .