Used to a little, not anymore. I've been questioned about my diet usually from fat people and usually women. I think women especially are fed a ton of nonsense by the diet industry. They eat their lean cuisine and jugs of flavored water at work and nothing much changes.
I used to get a ton of crap at work for fasting and i get some people coming back and saying how they heard about how good it is. Just nod my head, smile and move on.
Not trying to come off cynical, I just don't talk that stuff at all unless someone asks for it.