The use of iodised salt is an efficient way to add iodine to the diet.

In 1935, doctor Roy McClure begins adding iodine to kitchen salt to prevent the development of endemic goiters.

It can also be prepared by adding iodine to a hot, concentrated solution of sodium hydroxide or its carbonate:

It can also be prepared by adding iodine to a hot, concentrated solution of potassium hydroxide.

Through growing trade and other contacts with coastal people, the Neanderthals could have added more iodine to their diets.

The solution is the cornstarch and water mix together; and add iodine (it turns purple).

The cost of adding iodine to salt is negligible-"Only a few cents a ton."

Potassium iodate is used to add iodine to salt.

Efforts have been made to provide nutrients by distributing vitamin pills or by fortifying food in processing, by adding iodine to salt, for example.

It can be used to add iodine to organic compounds.