Cats can digest fish scales. Fish scales are part of the fish. Before cats were domesticated, no one would remove the fish scales from the cats when they hunted on their own. The cats could digest them after eating them. However, it is recommended that cat owners remove the fish scales when cooking fish for their cats, because fish scales do not have much nutritional value to cats. They need to remove the fish scales, wash them, and steam or cook them.

Precautions when giving fish to cats:

1. Do not eat fish heads: Fish heads cannot be given to cats because some of them grow in ponds. If it is large, it will inevitably be infected with a lot of bacteria, not to mention that fish heads sometimes have gills and other things left on them, which will cause certain harm to the cat's body if eaten. It is recommended that owners clean up the fish when feeding their cats.

2. Don’t eat tuna oil: Owners must not give tuna oil to their cats, because tuna oil contains a large amount of polyunsaturated fat, and cats are prone to pansteatitis after eating it, which will cause Anorexia and hair loss may occur, and you may even die if you eat too much.

3. Fish should not be used as staple food: Some owners will feed fish to their cats as their staple food. In this way, the cats will not be able to keep up with the nutrition. Cats will also be prone to eating a single food for a long time. If malnutrition occurs, the owner will regret it, so you must pay attention to the balance of nutrition in your diet.

4. It must be cooked fish: If your cat likes to eat fish, as the owner, you must cook the fish.