Meat is a great source of protein, iron, and several important minerals, and the Subway lean 6-inch roast beef sub contains just 264 calories and 4.5 grams of fat in a meal perfectly balanced with lettuce, tomato, and vegetables.You will Save: Nearly 100 calories and 12 grams of fat compared with a tuna salad sub, and more than 20 grams of fat compared with the classic meatball sub.Health Valley chi