After reading the post I was struck with a memory of cannabalism and that is in the Catholic tradition of receiving communion. Since the priest says "This is my body" the wafer becomes the body of Christ. Hence when people receive communion, they are in fact eating Christ.
It was an interesting concept brought up in a past anthropology class and we had begun reading a reading on the sexual politics of meat. Most people never thought of it that way. So the question would be why do we find eating people disgusting when Catholics in particular have been doing it for 2000 years?