Old dogs can eat cat food. Cat food is rich in protein and dietary fiber, which can supplement dogs' nutrition. However, it is not recommended to feed dogs cat food because dogs and cats have different protein needs, and cat food contains more meat protein and less fiber. Dogs may develop obesity, abnormal feces, pica, etc. after eating cat food. Dog food is rich in protein and dietary fiber, which is relatively easy for dogs to digest. Therefore, it is recommended that pet owners feed their old dogs special dog food.

The dangers of dogs eating cat food for a long time:

1. Causes dog obesity: Cats are carnivores, so the meat content of cat food will be very high. , although dogs also need a certain amount of meat, it is much less than that of cat food! So when a dog eats cat food, it may cause the dog to become obese. It can even induce diseases such as heart disease, pancreatitis, and hyperglycemia.

2. Causing taurine poisoning in dogs: Cat food contains taurine, a nutrient needed for cat growth, but dogs do not need this substance. Some dogs eat cat food and cannot bear it, which can lead to taurine poisoning in dogs.

3. Causes calcium loss in dog bones: Cats need more animal protein than dogs. When dogs eat too much cat food, it may cause the dog to consume too much sulfur-containing amino acids. Too much will lead to the loss of calcium in the dog's bones, which will lead to the problem of dog osteoporosis.