I started taking Iodoral last April, by August my hair started falling out. I had my thyroid checked, came back fine. Was devastated by what was happening. Despite all the positive feedback regarding Iodine I quit taking it the same month. My hair continued to fall out in clumps until the end of November when it stopped. It is now growing back, and I am really relieved. I haven't figured out what happened but I do know that there was a connection with the iodine. I am not sure I will resume taking it again.