As far as mustard, I have read up and drenched seems to be safe and free of gluten, not all mustards. Before u eat anything I do a quick web search. Also do the eliminatiion diet. I'm in the process as well. I have narrow ed down gluten, dairy, soy, peanuts, tree nuts and am still looking!! You mentioned eating out, there are gluten free menues but I always have to check for the other items and often times if its not listed they don't know. Therefore, I don't eat. Most all meat - deli has gluten! Ask before you order chicken at a restaurant only some- mostly hi end will guarentee it. Cross contamination is huge!! Just making my son a bagel can make me sick if I'm not careful. Good luck!!!