Ice cream is bad for cats because most adult felines are lactose intolerant and struggle to digest the dairy products inside. Consuming ice cream can lead to digestive distress such as stomach cramps, diarrhea, and vomiting in cats. Additionally, the high sugar and fat content contributes to unhealthy weight gain, while toxic ingredients like chocolate or xylitol pose severe dangers. Offering cat friendly treats is a much safer way to spoil your pet.