Do we still need iodized salt? (what even is it?)

You need iodine in your diet.

You get most of it from the salt that you sprinkle on your food...unless you use sea salt or Maldon salt or some other fancy, non-iodized salt.

So, depending on where you live - and I'm in the old goiter belt, myself - you might not get enough iodine in other ways.

So, eat your iodized salt and drink your milk, folks.