I know this is a question that probably doesn't come up very often. But I watched a movie that showed human bodies being fed to hogs. At some point those same hogs might be butchered and the meat sold. I suppose if you never knew about the hogs eating the human bodies, no harm would actually be done. However, I am pretty sure I'd get real sick if I ever found out I ate an animal that ate a human. As to the long term psychological problems I can't really say, but I know I'd never be the same again.