Anthropologist Marvin Harris (bless his soul) believes that the taboo about eating pork relates to food. Horses, cows and many other animals can digest cellouse (grass, hay,etc) humans and pigs can't...pigs have to eat the same thing we eat. The food required to feed a pig to maturity would feed 10 humans. During times of famine, if you had a pig, you would essentially be starving humans to support the pig. This would cause repeated problems...the religious leaders managed to work 'pork is bad' into the religion and this problem was solved.
hmmmm ... The story of the Prodigal Son slopping pigs for a living and eating their scraps illustrates your explanation.
just a ping of an older topic.
That could be. Also, human flesh and pork are indistinguishable, and eating human flesh (which in Roman times was typically available, and for less money, because of the "games") is forbidden.
[old joke alert]
Why don't cannibals eat clowns?
They taste funny.