Beef is a powerful protein that helps fuel active lifestyles for all ages. And beef is the No. 1 food source for protein, vitamin B12 and zinc. We like to think of it as nature’s tastiest multivitamin. Science continues to highlight the role beef plays in a healthful, well-balanced diet. It’s a great source of lean protein, too. There are many lean cuts, which include choices for every craving. Look for “loin” or “round” in the name. Best of all, lean beef can help control cholesterol and maintain heart health.