* '''Poisoned corpses''' - eating spiders, skunks, or snakes will poison you, which will make you vomit, and you'll end up even hungrier than before. So this is never a good idea.
* '''Acidous corpses''' - Since dark frog blood is acid, eating one of their corpses will cause acid to flow through your blood stream. This will most likely kill you
* '''Werewolves''' - Eating a werewolf corpse will give you [[Polymorph#Lycanthropy|lycanthropy]], which will cause you to polymorph into a werewolf randomly
* '''Floating eye''' - Eating a floating eye will temporarily give you [[ESP]], which enables you to detect intelligent creatures even if they are not humanly visible.
* '''Blink Dog''' - Eating a blink dog will give you [[TeleControl]]
* '''Magical mushroom''' - Eating a mushroom corpse will have a wide range of effects, from Polymorphing, to TeleControl, to Levitation, to Hasting or Slowing.
* '''Unicorns''' - White vs. Gray vs. Black