Time to fire up the grill for Labor Day! Chef Ralph Pagano is here, ready to serve inside skirt steak from Swift Beef. Stay tuned! Beef is, in fact, a part of a balanced, healthy diet. It's packed with 10 essential nutrients: iron, vitamins B6 and B12, protein, choline, phosphorous, niacin, riboflavin, zinc, and selenium. One three-ounce cooked serving of beef contains 50% of the recommended value for the day, 41% for vitamin B12, 39% for iron, and 24% for B6. And it's always important to remember cooking temperature—145°F for fresh beef and 160°F for ground beef.