Other then Mr Hotpepper and a very close childhood friend I do not talk about what I eat or don't eat. When I'm questioned I just say I feel better when I don't eat "XYZ" then I change the subject. I have no problem just picking what I can eat when I'm invited to someone's house for a meal. And if there's very little that's ok too. I still have enough reserves that one meal less won't make me waste away. What other people eat is non of my business and what I eat is non of theirs.