Fye gen, challenge: hunger. SPOILERS for all that 125 jazz.
Haemoglobin
Part of him assumed that it would somehow taste like normal food, like red wine or steak or bitter chocolate, a sensory analogy drawn somewhere between mouth and brain. It doesn't.
Blood tastes precisely like blood, warm and salty, with a sharp tang of metal. He does not enjoy the taste of it in the way he's always associated with food (though human food nauseates him now; the very smell turns his stomach) but rather craves it on some primal level that has nothing to do with flavour and everything to do with hunger.
He misses the taste of chocolate.
