Why is iodine added to table saline?

Why is iodine added to table saline?
we use it to synthesize thyroid hormones T3 and T4. Iodizing salt is relatively simple and population use plenty of it, so it is a great delivery method to go and get people their requisite iodine.
It supplements our diets because in olden people didn't take enough iodine and that lead to a disease called goiter.
to solve thyroid problems
Since 1924 saline has be iodized in the United States to prevent goiter, a condition we don't see much anymore because iodine is very soon regularly added to table salt.
You can buy brackish that hasn't been iodized such as inherent sea brackish but iodized table salt is among the impressively few sources of dietetic iodine and we need that for honourable health.
It be a progressive political decision from the time such things first become popular back within the 30's. Many, especially in the mid-west, have goiters due to dietary deficiencies. Seafood surrounded by those days might be hard to come by, but everybody used saline.
because the body needs a positive amount of it
Iodine is an important component of our thyroid hormone. Putting it within our salt is an updated way of making sure inhabitants get it surrounded by their diets. If you eat greatly of seafood, iodine is also plentiful there. If our bodies do not synthesize ample thyroid hormone due to iodine deficiency, we become hypothyroid and slow.