Iodized salt is recognized as an effective intervention for control of IDD. Potassium iodate and potassium iodide are two major additives of iodized salt. Because the stability of iodate rather than iodide, WHO preferentially recommended iodate as an additives to salt. However, different doses of iodate may have different effects on the body. A large amount of dose of iodate may have toxic influence on some organs and tissues. By means of reviewing papers published in recent years , many studies demonstrated that the recommended concentration of iodate in salt is too low to give rise to any ad...
