Beef is one of the richest sources of protein for human beings. Doctors of patients recovering from surgery often recommend that they stick to a steady supply of protein – cow meat. Apart from proteins, beef is also an excellent source of iron – it actually contains more iron than any other commonly consumed meat. Meat gotten from cattle is one of the world’s most nutrient-rich foods judging from the amount of calories contained. Beef is a necessity for growing children, it supplies the major key nutrients children need to combat diseases and stay strong and healthy.