Yes i have a wheat allergy.The staff are great let them know in advance and they will ask you for your order the night before. Wonderful desserts on the gluten free counter at the chocoholics buffe.
The food abord is excellent and if you let them know you have a problem they will prepare a dish especially for you. Its probably best to let them know in advance but even in the buffet restaurant there was plenty of choice. I would take your own bread though.