My father is Gluten intolerant and with a cleared UG, he called ahead and asked for a Gluten-Free meal. At the Gate the GA apologized for not having Gluten-Free meals and issued 5 $50 vouchers for the whole family since we were all traveling together.
Side Note: 2 others were cleared into F as well and also Gluten intolerant, but my father was the only one who requested the special meal