Royal Canin Kitten Thin Slices in Gravy Wet Cat Food

Corn gluten meal

Frequently used to inflate the protein percentage without adding meat. It's low in some amino acids pets need, so it's a poor substitute for animal protein.

Carrageenan

Food-grade carrageenan is approved, but degraded forms cause intestinal inflammation in lab animals and studies disagree on how much degradation happens during digestion. Common in pâté-style cat food.