"Kosher, black, smoked, Celtic, Hawaiian--salt lovers have never had it better. But there's a downside to this desire: We may be shorting ourselves on iodine, and that could spell trouble for the thyroid gland."
(John Hastings, writing in Bon Appetit
. Seems there's never a trend in food that is all good. Fortunately, iodine appears naturally in eggs, dairy products and fish.)