I can empathize with that, since I also have some traits that raise similar responses, which I'd rather avoid.
But I'd better word my request as "please don't question my choices" instead of going into that much detail about them, which is precisely what I'd like to avoid in the first place.
"Oh, are you sure? It's no trouble? It's good for you! Breakfast is the most important meal of the day! Why not just eat breakfast with us?" etc. etc.