: By taking a high dose of stable potassium iodide, the thyroid becomes "saturated" or full. This prevents it from absorbing the radioactive isotope, which is then instead excreted through the urinary system.
In a radiation emergency, some people may be told to take potassium iodide (KI) to protect their thyroid. Centers for Disease Control and Prevention | CDC (.gov) Nuclear Disasters: Should You Get Iodide Now? buy iodine tablets
: Iodine is most effective for residents near a nuclear power plant accident where iodine-131 is the primary threat. In a nuclear weapon detonation, victims face immediate thermal blasts, pressure waves, and "whole body" radiation that iodine cannot mitigate. : By taking a high dose of stable
: Health authorities like the Finnish Radiation and Nuclear Safety Authority (STUK) emphasize that taking iodine is secondary to staying indoors , which significantly reduces the inhalation of radioactive particles. 3. Usage Guidelines and Risks Centers for Disease Control and Prevention | CDC (
The human thyroid gland requires iodine to produce essential hormones that regulate metabolism and growth. It cannot distinguish between stable (safe) iodine and radioactive iodine-131, which is often released during nuclear power plant accidents or detonations.