Thorough nutritional information on website. Almost all sauces are gluten free. When ordering online they note which burgers can/can’t be made gluten free, and what substitutions to select (e.g. swap crumbed chicken for grilled). Their online ordering system also asks if you are coeliac when ordering gluten free burgers. They have a seperate kitchen space for gluten free burgers, but unfortunately fries are cooked in a shared fryer