The chicken nugget contains more chicken parts than actual meat, researchers from the University of Mississippi Medical Center found. Researchers claim two nuggets they examined from two different national chains in Jackson, Miss., contained less than 50 percent chicken meat, Reuters reported. The first nugget was half meat, with the rest a mixture of fat, blood vessels and nerves. The second nugget contained only 40 percent meat and the rest fat, cartilage and pieces of bone. "It is really a chicken by-product high in calories, salt, sugar and fat that is a very unhealthy choice," lead author of the study Dr. Richard D. deShazo told Reuters Health. The researchers chose not to reveal which chain restaurants the chicken nuggets came from.