Table Salt, Edible Salt can be iodised by spraying it with a potassium iodate or potassium iodide solution.

Purpose:

Prevents iodine deficiency disorders, which affect thyroid function and brain development.
Ingredients:

Contains Sodium Chloride (NaCl) fortified with Potassium Iodide (KI) or Potassium Iodate (KIO3).
Intake:

In the US, it contains roughly 45–50 mcg of iodine per gram of salt.
Usage:

It does not affect the taste, smell, or appearance of food.
Limitations:

Most processed foods and restaurant meals use non-iodized salt.
Source:

It is primarily found in packaged table salt, not typically in specialty salts like Himalayan or sea salt.