yikes that sounds disgusting. That being said - and while I would, on a philosophical level (being a vegetarian), probably even prefer to eat Hershey's rather than Hematogen, I have no doubt that from a purely gustative point of view (i.e. if I were to taste both in a blind test of different "chocolates"), even that Hematogen would taste better than Hershey's.

Hematogen may contain cow blood (which is disgusting if you know what it is you're eating), but Hershey tastes like what I would otherwise only imagine cow vomit to taste like. And one doesn't need to know what's inside to sense the taste.