Der Feuervogel aufersteht.

I hear you. My mom goes through these phases where she'll read some research suggesting foods are unhealthy and then (1) expect everyone around her to bend themselves over backwards and (2) take on the same eating habits themselves. There were a few years where she would tell everyone --including waitresses!-- that she was "allergic" to wheat. EVERY TIME I would stop her and say, "That's not correct, my mother prefers to avoid wheat; please do not have your chef stress over her food as if she had Celiac's."

That being said, a person with a real allergy has every right to request foods be avoided. "No meat" is pretty easy, compared to my intolerance to gluten. I wish I could go vegetarian, but with my body reacting so strongly to carbohydrates, I eat a lot of protein and fruits and vegetables.