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From Revisionist History: Way to Go, Ohio
World's Greatest Con
Goiters and Iodine in the Diet
Iodine is a trace element found largely in seawater. There's a lot of iodine in seaweed and in the livers of fish like cod. If you live in a coastal area, you'll get iodine in your diet naturally. But go inland, and iodine gets harder to find in nature. Fresh water flushes iodine out of the soil. Worst off are places that used to be covered with glaciers. When people don't get enough iodine in their diets, their thyroid glands have to work over time to compensate. So the thyroid becomes huge, like an oversized heart.
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