Not really a antagonist but one cultural eccentricity comes to mind. Within high society it is considered very pure not to need food at all. There is a myth that the more divine you are, the more you can exist on air alone. This is why a lot of popular dishes are incredibly beautiful but have the nutritional value of a sneeze and, the bakery is open at two in the morning so the nobility can drop by in secret and gorge them selves on large pies.
