So, it appears that you have no idea how much iodine you personally need or how much you are getting unless you undergo frequent tests because even with iodized salt, storage of the salt can alter the iodine content. And the trend nowadays is to decrease salt in one's diet. One wonders about the current passion for eating locally unless you have a way of knowing that the local food has enough iodine. Eating food from different locations might increase your chances of getting the vitamins and minerals that might be deficient in your local farmers market area.
I've been using Iosol for many years off and on. It is a water soluble form so the body can eliminate the excess.