Iodine is an essential mineral that is used by the thyroid gland to make thyroid hormones. Thyroid hormones help to control many functions in the body including growth and development. Since Iodine is an essential mineral, it must be supplied to your body by food and beverages because your body cannot produce this mineral. Iodine cannot be stored for long periods in our bodies so small amounts are needed on a regular basis. The recommended dietary allowance (RDA) for iodine of individuals 14 years and older is 150 micrograms. One of the best sources of Iodine is iodized salt. One-fourth teaspoon of iodized salt has close to 100 micrograms of iodine. Natural sources of dietary iodine can be found in seaweed, saltwater fish, seafood, and dairy products. Iodine deficiency can lead to hypothyroidism, thyroid enlargement, and weight gain. Iodine is also important to brain health as iodine deficiency is the leading cause of intellectual disability around the world. Overall, iodine is an important mineral that helps many functions in our body.
Source: https://www.eatright.org/health/essential-nutrients/minerals/iodine-a-critically-important-nutrient
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