Nutrition bars this month. Of course that has a more sinister meaning here in this tower, but it's also tedious to eat. If you're going to be gruesomely experimented on, there's no need to tolerate bland meals as well. I don't intend to put up with it all month, and neither should you. Here are places you can find the ingredients for better meals in the tower.
Floor 101: You can find many plants here, and they're no more likely to be toxic than anywhere else.
Floor 79: There are fish and other marine animals here which don't appear to be poisonous.
Floor 63: This floor also has fish, but many are very alien. It's impossible to predict which of the strange ones are poisonous.
Floor 62: More fish.
Floor 60: There is no food here, but there's everything else you could need in a kitchen.
Floor 33: I've examined the soil in this field and it appears to be arable. There are seeds in the shed.
Floor 32: There are deer, rabbits, squirrels, birds, etc in this forest. (But you'll have to kill them without any unusual powers you possess, on this floor.) There are also berries and mushrooms, but you're an idiot if you get careless with the latter.
Floor 10: More fish.
Floor 6: More deer, rabbits, squirrels, birds, etc but these are freakish mutants who also render powers useless near them.
All floors: Some of the monsters are edible. Others will probably do bizarre and terrible things to you if you consume their flesh. Choose wisely. (I can speak for the safety of the huge, bloodied yellow birds if you can corner and kill them, as well as the small and weak flying bulls, but I have tried no others.) Good places to farm for kills are the tower on floor 75, the maze in floor 72, floor 57 at night, and floor 30. If someone could find out how to get our powers to work on floor 97, that would be the best place yet.
Since I've already written this much, I'll add some warnings.
Floor 87: You are an idiot if you try to use any of these flowers as ingredients, and soon you will be a dead idiot.
Floor 86: Don't try to pick the mushrooms, much less eat them.
Floor 76: Did you really think they would give us a normal greenhouse? Most of what's here is poisonous.
Floor 71: It would be too convenient if we could carve up the flesh here for meat. The beast has defenses. Don't try it.
Floor 61: You can pick the mushrooms here, but I haven't tried eating them yet. I don't know what species they are. It's on your head if you risk it.
I won't babysit you if you want to try to use any of this information.