Danny needs a few...odd things. A few dietary and emotional requirements unique to his physiology. Meat is one of them.
But like, raw meat. He doesn't have to eat it often, maybe twice a month, but it does need to be completely raw.
He also needs to eat non-sentient blob ghosts, which are very different from sentient ones. Same amount, maybe twice a month.
He's weak to hot temperatures, where most humans require some sort of positive contact he needs to fight, if he gets too much sunlight his dopamine levels drop, and oddly enough as he got older milk or products with a lot of milk started to affect him like alcohol affects humans.
Now that he's made it to college, hiding most of these things is easy enough.
He chose Gotham, because of minimal sunny days and naturally cold weather. He regularly goes for walks at night, to fill his need for fighting. He says he has a milk allergy, and avoids milk products.
The blobs and the raw meat are a little uh. Those are a little hard.
He's taken to ducking into a bathroom stall to just swallow the blobs whole. But the meat...
He decides to sear the outside and leave the inside entirely raw. Does this detract from the nutrients by cooking them off? Yes. Does it mean he needs to eat raw meat four times a month instead of twice? Yes. Does it mostly hide that he's doing this in front of humans? Kind of.
Until he got a vegan roommate.
Said roommate is far too sharp-eyed for his own good, and now the guy is being weird.
Or: Damian's roommate is a meta who clearly has dietary restrictions outside the norm. It's fine; Damian understands that like animals in the wild, people have different diets. But the cuts of meat Fenton is eating are...subpar. Damian isn't sure how to be...civil, or appear polite, or not be a "snob" if he suggests Fenton allow him to procure farm fresh cuts of steak from cows raised in an open pasture and were well taken care of.
