The natural flavorings that we use in our Flavor Sticks do contain a small amount of maltodextrin derived from corn. However, this makes up a negligible amount (less than 1% by weight) of the product.
We're more than happy to modify your blend for you to avoid any ingredients that include corn. Just let us know by emailing your dietitian at rd@gainful.com and we'll create the perfect blend for your allergies.