What happens when returning to lower doses?

[Guest guest]

As I understand the thyroid enlarges when there is not enough iodine in order to

get the most of the little that is available. And if it gets enough it doesn't

need to enlarge.

Now I am wondering what happens to a normal thyroid that gets 50mg per day? Does

it become smaller?

And what happens when that dose is reduced to 6-12 mg again after a while? Does

the thyroid become like " lazy " under high doses and has it then difficulties

with " only " 6-12 mg?

These are two questions that came to mind and I would like to know what

experiences poeple have made when they returned to smaller doses after

saturation was reached.

Thanks.