In taking an increased amount of iodine, I encountered thyroiditis, which lead me to look into the cause. Consequently, I've come up with a theory.
My theory according to my model is, if you decrease the causes of inflammation and autoimmunity (spikes in antigen via spikes in hormone production), you can decrease autoimmunity by slowly increasing thyroid hormone production (by slowly increasing iodide consumption). Like many other organs, use determines size and capacity, and expanding use slowly will increase size and capacity, whereas suddenly expanding use may cause damage.
You can see the background here: https://grithin.com/...os-thyroiditis/