McRib consists of a restructured boneless pork patty shaped like a miniature rack of ribs, barbecue sauce, onions, and pickles served on a 5 1⁄2 inches (14 cm) roll. The process McRib consists of a restructured boneless pork patty shaped like a miniature rack of ribs, barbecue sauce, onions, and pickles served on a 5 1⁄2 inches (14 cm) roll. The process of restructuring the meat was first developed by the US Army as a means to deliver low cost meat products to troops in the field.of restructuring the meat was first developed by the US Army as a means to deliver low cost meat products to troops in the field.

The entire sandwich packs a whopping 500 calories, 26 grams of fat, 44 grams of carbs, and 980 milligrams of sodium.