Protein isn't the only selling point of this meat choice. Beef is also one of the best sources of zinc, a mineral that people often lack in quantity, especially if they're counting calories.
Vitamin B12 is overlooked as an asset by those who are dieting. It's one that you can get only from eating animal foods such as eggs, milk and, of course, beef. Another beef bonus: its fat is rich in conjugated linoleic acid, or CLA, a fatty acid that helps lower blood sugar.