However 1 cup of milk has more iodine than 1/4 teaspoon of iodized salt, 1 egg has half as much, and two slices of enriched wheat bread has three times as much.

Also, a typical kelp supplement has way more than the RDV, in a single pill.

You can get it from a lot of other places, but they are unreliable. Plants grown in iodine rich soil will have iodine, but good luck identifying that.

I use iodized salt because I don't love the alternatives.