This is what’s in your chicken nuggets in AmericaThis is mechanically separated chicken, aka chicken pasteAfter the good cuts are gone, the bones still have meat, fat, and tissue on them, so they run it through a machine and this is what comes out. This turns into your nuggets and hot dogsMore infoAfter the prime cuts like the breasts, thighs, wings are removed, the remaining bits of meat, fat, and tissue still attached to the bones are forced under high pressure through a fine sieve or filter.