A serving, or 3 ounces, of barbecued pork ribs contains 222 calories. A serving, or 3 ounces, of beef baby back ribs contains 306 calories. A serving, or 3 ounces, of beef short ribs has 212 calories. Barbecued ribs have a high amount of saturated fat. Pork ribs are 20 percent saturated fat; beef baby back ribs are 32 percent; and beef short ribs are 25 percent saturated fat.