No matter how much our society condemns it, there are real cases of cannibalism and not just in remote, primitive tribes, but also among modern people living in modern countries.
Obviously, it is only cannibals that can actually comment on the taste of human flesh. Now there are some things that are OK to be curious enough, but I am personally not sure. However, when it comes to science, we feel more dutiful. So, let's go and learn how human flesh tastes.