Not sure If I'm sold on megadosing iodine

I just read an article on Mercola's website and there are mixed theories on how much Iodine your body needs:

I feel any more than 1-3mg a day is way too excessive and I hear people are actually taking 20-100mg a day, which blows my mind. I feel this can do serious harm to your body. Would like to hear your thoughts on this

Thanks Tweet