The wonders of beef liver!
 

1lb(half kilo) of beef liver contains 794 calories and 120g of protein!!!
Calories in 1 lb of Beef Liver (Cooked, Pan-Fried) and Nutrition Facts
Real bodybuilding fuel!
Remember not to over do it as it contains a lot of Vitamn A and Iron!

Lambs,Beef and pigs liver are excellent for bodybuilders! Some of the past greats used to live on liver. Ox liver is a bit strong, though some love it.

Cut liver very thin and just sear it each side in a hot pan so it's cooked but pink inside. (Overcooking spoils the texture and gives a cloying taste.) Then deglaze the pan with a teaspoon of cornflour in a cup of water for a rich sauce - MMMMMM!