I often wonder if Americans are becoming Iodine dificient again with al the thyroid troubles here, we don’t test Americans for the dificiency anymore, and when I was diagnosed with my hypothyroid I called Campbell’s soups and Stouffer’s frozen, the two packaged brands I eat most, and both said iodine is not in the sodium/salt they use. Both of them make very salty products and I would assume more people do not add their own table salt, I know I don’t. I sometimes buy low salt soup so I can add my own iodized salt.
Also, I once saw an interview with a chef and he said he doesn’t use iodized salt, because it changes the taste. So possibly if you eat out a lot and eat packaged food a lot, you are not getting sufficient iodine. Just a hypothesis of mine.
@gailcalled Rock salt is used for both melting ice and cooking. I can’t seem to find if Kosher salt is exclusively from the sea or rock.