If you are diagnosed as celiac or have sensitivities to wheat or gluten, it may not be enough to know which foods are gluten-free and which are not. When dining out, unless there are GF areas in a kitchen, you are taking a risk. Employees’ knowledge on GF is not always up to date. Ask questions beyond, "is that gluten-free?" Listen to the answers and make sure you are satisfied or you may not want to eat at that establishment.
Most of us think of meat as gluten free. If you are ordering a sandwich, eating at a buffet, or even at a friend's, unless you know the source of the meat, you may be risking eating gluten. If eating something that has marinated or has broth (poultry is often injected with solution to make it look plump and juicy); we don't often have access to ingredients. Even if you buy the meat from a grocer, you may not see a list of ingredients in broths or marinades. I am not trying to promote fear of food, I am merely saying; be warned, kitchen staff and friends can't be expected to be up to date on all things considered that have to do with gluten-free eating. If you are not truly diagnosed as celiac, and don't have a sensitivity to gluten, I hope you won't put your friends and relatives through the rigorous questions you have on where the food was bought and how it was prepared. If you have a reaction to wheat or gluten, of course, that is not an option, you have to eat gluten free to feel good and to have a normal day. As you are gearing up for the holidays, you can make everyone more comfortable by doing research now on which meats to buy for your table and which dining establishments to enjoy over the holidays.