My periods have been so erratic for decades, but Iodine has made a difference. I believe I was well into the "change" when I first started taking it - Magnascent - noticed less brain fog at that time of the month. This was almost two years ago.
Lately, have noticed that adding some dessicated thyroid has given me two more regular cycles back to back and some of the least problematic, lightest cycles of my life. After 53 years, I am not sure that even the high doses of Iodine were going to jump start my thyroid like it needed to be. I believe the dessicated thyroid in conjunction with the Iodine is doing the trick.