Iodine deficiency may be coming back. What is the dietary problem? - National | Globalnews.ca

Iodine is a trace element found in seawater and in some soils, mostly in coastal areas.

It essentially disappeared after some food makers started adding it to table salt, bread and some other foods.

Today , people are getting less iodine because of changes in diet and food manufacturing.

Some studies have linked iodine deficiency to lower IQs and language delay in children.