Indefinitely???? as best we can tell at this point.
Depends who you talk to.
Dr. Brownstein was taking 50mg/day of iodoral when I saw him talk 4 years ago, and he had been doing that for 6 years or more I think. He told me that if he takes less than 50mg he doesn't feel as good, so he keeps taking it.
Others lower their dose once they get through their gunk.
Trapper will tell you to take a minimum of 100mg indefinitely.
If you can move to a perfect world where there are no bromides in the bread, vegetables, fabrics, electronics, hot tubs and no fluoride in the water and the drugs and anesthesia and no toxic chlorides in the water and the foods are saturated with Iodine then maybe we won't have to supplement with Iodine.