I don't know JK, I tend to err on the side of caution and not overdo the iodine, but I make sure i"m getting the recommended about and more. I think the RDA is about 150 mcg a day, which isn't that much. It's the bare minimum I think.

I make sure I get this from my ordinary supplement containing around 100 mcg, iodised salt (which I use because it helps) and sometimes added diluted lugol's iodine. Which I think is about 100 mcg a drop. I take a few drops, but find I don't tend to need it as the salt and the supplement seem to be providing enough.

Natural salt does not contain enough iodine for those from areas already deficient in it. It contains a bit, but will not be able to cover a person if they are from an area like mine. Because of this, we have had epidemics before of iodine deficiency and corresponding thyroid problems as a result, which were remedied by iodised salt and iodine added to bread.

Unfortunately, as time wore on, people who were being told 'salt is bad" either went off it altogether, or changed to natural ocean sea salt, with all intentions of improving health. Yet the body requires salt! And certainly natural ocean sea salt is excellent. Problem is, in my country? You see the downside. We're already low in iodine.

So couple that with the fact they later took iodine out of bread and replaced it with bromide and then we started having issues again. I hear they have gone back to putting iodine in bread. I hope this is true. I don't get bread, so I don't know!

I eventually went back to iodised salt because the natural sea salt, good as it was in every other way, was severely lacking in iodine and the consequences were pretty disastrous. I got to such a point of barely being able to function. And that's saying something since I"m not well the rest of the time anyway.

So for me, simply the re-addition of iodised salt and a basic vitamin/mineral supplement containing iodine made a difference with DAYS. Or even a day.

I do not know the consequences of overdosing on iodine. I assume the body takes what it needs and excretes the rest. How efficient that is? I don't know and is there a point that it can be harmful to where the body isn't able to eliminate so much of the extra? I don't know for certain.