What can you tell me about cannibalism?

That is, without looking it up. I know that cannibal tribes have, or still do if there’s still some around, I believe so…these beliefs that by eating the flesh of their fallen enemies, they gain power. So, cannibal tribes don’t live off of human flesh, it’s more of a spiritual thing.
Famous serial killers have also been known to consume human flesh, for various reasons. For example, this Vietnam veteran who’s name I forget, years after the war, ended up killing prostitutes and eating parts of their vaginas, because he believed that by doing so, he could combat the HIV virus. (even though he was never infected with it)
In my issue of Bizarre magazine, I recently learned that in some places in Africa, albinos are hunted down, get their limbs severed, organs taken out and whatnot, because witchdoctors believe that you can cure, once again, AID’s by making concoctions with the flesh and blood of albinos. I’m not sure entirely if it’s cannibalism at this point though. Still damn horrendous though, and related to what I’m asking.
From what I know, cannibalism owes its existence to various forms of belief, but I’m pretty sure it can also be merely a taste thing, a sexual thing, some way to feel powerful, whatever.
What can you teach me? I’m especially curious about cannibalism in our times.