Current research suggests these nutrients may play a role in human cognitive development and disease prevention. And, beef offers these benefits in a lean, convenient package. Background Beef is a significant source of bioavailable zinc, iron, protein and many B-vitamins. Zinc improves health and supports the immune system, helps fight off colds and viruses, and aids memory and brain function. Along with zinc, iron helps support the immune system, but it also carries oxygen to body tissues and enhances energy production.
Protein is essential to build and maintain strong muscles.
The various B-vitamins are vital to normal growth and development, and they help unleash the energy in the food we eat. There are eight cuts of beef meeting USDA labeling guidelines for lean designation. Flank steak, top round, bottom round, top loin, top sirloin, tenderloin, eye round and round tip have, on average, 6.5 grams of total fat, 2.4 grams of saturated fat and 67 milligrams of cholesterol. 3 Emerging research suggests other health benefits of including beef in the diet. Beef contains CLA, recent research indicates CLA may play a role in cancer prevention by inhibiting tumor growth and development.