"and I am curious if you noticed any behavioral differences, in addition to the health contrasts."
Oh, yes; no question about it! My eldest have a touch of Asberger. I have noticed that he became more content of his life. Before Iodine he was even on the edge of suicidal thoughts (problem is that the norm today doesnt fit with asberger`s social problems, they feel unsuccessfull on all levels) He is to bright for his class mates.
My youngest is easier, but I have seen a balance to him too, lately, less trouble with his friends.
My cats; more balanced.
In general less fear, less need of control, better humor, letting go of issues.