Reuters wants us to know. Mind you, only two "nuggets" that came from "two national fast food chains in Jackson" were tested. But they both had similar content. If you like chicken nuggets, stop reading this post. On the other hand, here you go:
The first nugget was about half muscle, with the rest a mix of fat, blood vessels and nerves. Close inspection revealed cells that line the skin and internal organs of the bird, the authors write in the American Journal of Medicine.Ick.
The second nugget was only 40 percent muscle, and the remainder was fat, cartilage and pieces of bone.