We're up to our necks in body parts as we examine food physiology today on Unwrapped. First, Nestle reveals some surprising ingredients in an old favorite, the Butterfinger. Then, crab legs aren't the only things hopping at Joe's Crab Shack-the servers like to dance around, too. And what kind of company produces elbows and hair? If you're using your noodle, you might say pasta! We check in with the Philadelphia Macaroni Company to see how they do it. Later, discover a yellow fruit that's quite a handful, and find out how it's used to make citrus-flavored vodka! Sara Lee bakes up some adorable mini-buns, and Eat Yer Face lets you come face to face with a most unusual dessert!