The Thread for Iodine/Thyroid is here:
Just thought I’d link it for you since it can be difficult to find. I don’t think this thread is actually a Sticky, but it should be. The only thing mentioned about Iodine in the “Prototype” Sticky is in regards to how many Iodine Ions are in T3 and T4, which I’m guessing won’t help you out a ton.