One more bit from the Iodine debate section on iodine4health.
4. Iodine Debate Continues: Rebuttal #2
Guy E. Abraham, MD and David Brownstein, MD
Townsend Letter, the Examiner of Alternative Medicine, April 2006
"Stable Iodide content of the thyroid gland measured by X-ray fluorescence scanning revealed that autoimmune thyroiditis is associated with low stable Iodide levels in the thyroid....In Dr. Brownstein's practice, every patient placed on Iodine therapy had thyroid antibody levels tested before and after beginning iodine therapy. Dr. Brownstein's experience has been consistent: the use of inorganic nonradioactive iodine has not resulted in a higher incidence of autoimmune thyroid disorders".
However, read below....
7. Iodine Debate Continues: Gaby's Response to Rebuttal #3
Alan R. Gaby, MD
Townsend Letter, the Examiner of Alternative Medicine, July 2006
"If Dr. Brownstein has done before-and-after thyroid antibody tests on all his patients, then his data might resolve the question of whether short-term treatment with high-dose iodine increases the incidence of thyroiditis. I urge him to publish his results. His data would not appear, however, to answer the question of whether long-term iodine therapy increases the incidence of thyroiditis, particularly since Dr. Brownstein only started using high-dose iodine routinely about three years ago."
In summary, it appears that from Dr. Brownstein's clinical practice and from before and after tests that iodine supplementation does not increase antibody levels but this was seen short term over the course of three years of practice. We do not know yet what the long-term complications might be.