Cats can eat ice cream, but it's generally not recommended. Ice cream is a cold food and can easily cause diarrhea. Furthermore, ice cream is high in sugar, and excessive consumption can lead to vomiting, abdominal pain, and increase the risk of diabetes.

Besides ice cream, chocolate, coffee, candy, and pastries are also prohibited. Grapes, onions, and leeks should also be avoided, as they can increase the burden on the liver and hinder a cat's growth and development. It is recommended that owners primarily feed their cats cat food, supplemented with boiled chicken breast, boiled quail, boiled egg yolks, etc.