Quote:
Originally Posted by Undertoad
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Iodine is found neither in kosher salt, nor in sea salt. Iodine is notably absent in the soil of eastern North America and therefore in the local diet. Thus the iodine supplement in most commercial salt.
Goiter (a swelling of the thyroid gland due to inadequate iodine intake and resulting hypothyroidism) was, at one time, viewed as normal in the eastern US and Canadian provinces.
Dextrose keeps salt from clumping. Without it, the humidity of the Great Lakes region and most of the eastern seaboard would render NaCl into chunks unreceptive to the requirements of modern cuisine.
If anyone here ever admits any form of sugar, whether sucrose, fructose, or dextrose, to his/her diet, don't worry about iodinized salt. The amount of dextrose you'll imbibe from iodinized salt is inconsequential.
Taking the commonsense approach, the iodine you'll get from a little occasional (unadmitted) addition of Morton's Table Salt will keep your thyroid happy and allow you to do your best otherwise to optimize your healthy diet.