When you have a gland, it’s wise to be a bit more careful. It’s not so much increase in anti-TPO one needs to worry about, but more anti-TG and TRAb. Especially the first. According to a scientist called Michael Zimmermann, we don’t know if the increase in anti-TG is transitory or more chronic. I recommend him as a serious investigator of iodine. He realizes the importance of iodine.
What Zimmermann also writes, and which is important, is that one sees a sharp increase in anti-TG especially when someone has been iodine deficient for a long time, and then suddenly gets a lot of iodine. One sees this when a country starts iodizing the salt. In the countries where they have started on a high addition from the get go, one has seen a big increase in anti-TG. Whereas in the countries where one has added iodine a little at the time, there has been less increase in anti-TG.
One used to say, high levels of anti-TG didn’t matter that much. But now there are some studies saying, that anti-TG is more dangerous than one used to believe. It has a greater ability to kill thyrocytes than anti-TPO. I write about this here.
This is why I advice starting low and increasing over time if you have a thyroid. And especially if you have functioning thyroid. If you have had Hashimotos for years, your thyroid does not function anymore. Which is why you need thyroid hormones. The gland will be infiltrated, and it will never be healthy again, I don’t think. In that case, there is no danger of further damage to the gland by ingesting Iodine. The gland is already destroyed, more or less. After many years of thyroid disease, I think everybody deserves an ultra sound of their gland. It’s the only way of truly seeing the state of the gland.
If this is the case with you, you have to decide if an increase in antibodies would worry you or not. High levels of antibodies are connected to symptom load. High dose iodine can clear up thyroid antibodies as well. But you never know which way it will go.
If you are just in the beginning of thyroid disease, you have anti-TPO and/or anti-TG over range. Or your FT4 is becoming too low, under 40% of range, then I think “low and slow” is the safe way to go. If your thyroid is healthy, and you don’t have thyroid antibodies over range, then it’s much safer to start high dose iodine. As long as you take selenium. IT’S WHEN YOU ARE IN THE BEGINNING PHASES OF THYROID DISEASE THAT YOU REALLY NEED TO BE CAREFUL.
The problem is, that’s it at this stage many start high dose iodine. In the hopes of fixing their beginning thyroid issues. And we often know very little about thyroid disease at this stage. Things can go wrong, and I see it happening in iodine groups. People damage themselves with iodine. I hope my warning voice reaches someone. And remember, I love iodine and take it every day. I am not an iodine phobic. But better safe than sorry!