For all the people who asked me why I have started eating liver here is a chart that compares some of the vitamins and minerals in liver with apple, carrot, and red meat. I got this table out of a powerpoint presentation by Sally Fallon. The numbers on the table will vary based on the quality of food, but you can see how much more nutrient dense liver is compared to the other foods.

By the way, I imagine most people who think liver is gross just had it cooked poorly. Liver should be rare to medium rare. Throw in some bacon, garlic, onions and the like. Slice the liver thin and put it on lettuce if you want. It will taste almost like a tender steak.