Even Salt Has Corn?!?

Jason is allergic to corn, so it caught my eye when I noticed that the GNC website offers special recipes, including a section dedicated to a corn-free diet. While reading the Baked Macaroni and Cheese recipe, I noticed a note about the salt in the recipe:

Allergy notes: People following a corn-free diet should avoid iodized salt since it contains dextrose, which should be avoided by those allergic to corn.

There is even corn in salt. Goodness. There is no escape from the evil corn!