Are there any physiological reasons supporting the taboo on cannibalism?

Question

Conversely, are there any against it?

Answer 1

Yes. Consuming the brains of other humans causes some sort of neurological disorder that causes the afflicted to shake uncontrollably. I think it may be fatal. However, flesh is fair game and is actually quite nutritious. What could the best food for a human be but another human?

Answer 2

Well, if the consumption includes brain and spinal matter, we get a mad cow type disease.