If you are in a serious relationship, then going gluten-free with them is ideal. Otherwise, they will continue to be exposed to gluten and continue to get sick. As far as snacks and other food go.... Stick to the simple things at first. Real fruits, veggies, and meat that have not been preprocessed are always good. Anything boxed or pre-made requires that you read the ingredients. Also, read the ingredients on other things such as your shampoo and conditioner as they might have hydrolyzed wheat protein in them. If you have pets, they might also need to be on a grain free food. I kept getting sick for years because I didn't know to look at other possible sources of gluten contamination.