The liver is the filter of the body. It removes all of the toxic substances, and then....you eat it? Why?
Despite that I have been known on occasion to take a bite of Turkey or Chicken liver when I'm boiling the giblits for the gravey (like twice a year). And partake of Pate at a party (which has been only a hand full of times in my life). Other than that, considering I'm watching my cholesterol and there is no food higher in the stuff (and the above statement), I avoid it.