BrainStuff

Why do they add iodine to salt?

Nov 30, 2012 · 3 min · 3.1 MB
0:00-3:12

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Table salt contains iodine to help prevent thyroid problems and iodine deficiencies. Find out how table salt keeps your thyroid happy -- and what iodine has to do with a nuclear attack -- in this episode of BrainStuff.

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