Potassium Iodide helps protect your thyroid gland from radioactive iodine, in case of a nuclear accident. Your thyroid gland will absorb all halides, including iodine isotopes, bromine, and fluoride. These elements make it less efficient, and potentially completely disable it. Unless it's already saturated with good iodine. This Potassium Iodide is safe to store for many years in your emergency kit for the event of a radioactive fallout heading your way. Our USP Grade Postassium Ioidide (KI) is safe to ingest even for an extended period What is Potassium Iodide (KI)? Potassium iodide (also called...