I apologize for long delay in replying. As I understand it, there are other systems in the body that use and store iodine, and that may absorb radioactive iodine if you're deficient. It's a good idea to stay replenished with iodine anyway.
As I understand it, 2 drops of Lugol's Solution, full strength, is a good daily maintenance amount. You can safely take 8 drops a day while replenishing. Painting iodine on your skin and covering it with a band-aid is said to show a deficiency if it disappears within 24 hours.
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