Non-iodized salt is a refined salt without iodide. Iodine is an important raw material for the synthesis of essential thyroid hormones, which affects the production, development and metabolism of the body. Iodine exists in nature, and people mainly take it from drinking water, grain, vegetables and the surrounding environment. In order to avoid excessive iodine, it is suggested that the following people should eat non-iodized salt instead of iodized salt.
Iodized salt is made by taking salt as carrier, adding a small amount of potassium iodate and mixing evenly. The purpose is to prevent goiter commonly known as "big neck disease". In fact, iodized salt can be used in other fields besides eating, which is very beneficial to human health.