Have you experienced the people with a self righteous diet plan? In my experience it is usually, but not always, a self proclaimed vegetarian.
Years ago Katie and I had a little dinner get together at our house. We had some Christian friends over, and a friend brought a date with him, a woman we had never met before. Well, as we sat down for dinner that evening this woman proclaimed in a loud irritated voice, “I can’t eat this! I’m a vegetarian! What have you made for me to eat?” The message was loud and clear, I am superior to you philosophically because of what I eat.
Her superiority was as very hungry superiority, that remained a hungry superiority for the rest of the night.