I cut myself by accident this morning, and my immediate reaction was to bring my hand to my mouth and lick the wound. This made me wonder, though; how much of yourself do you end up eating in a year or over the course of your life? There's no way to deny that we do digest ourselves to an extent; you regularly swallow your own saliva, and in cases like these, blood. I'm almost certain that you ingest at least a limb's worth of yourself over the course of a year.
So why is cannibalism shunned by society?
Eating another dead human being, regardless of their willingness to be eaten, is still morally seen as "wrong".
Thoughts on this are much appreciated.