It's unsafe for cats to eat ice cream, and there a a few reasons why. (None of this will come as a shock to you!)
First off, most types of ice cream contain high amounts of sugar and fat, which can cause obesity in cats. This can lead to various health problems such as diabetes, heart disease, and joint issues.
Secondly, many brands of ice cream contain ingredients that are toxic to cats. For example, chocolate flavored ice creams often contain the chemical theobromine, which is harmful to cats and can cause vomiting, diarrhea, or even seizures in severe cases.
Some types of ice creams also contain artificial sweeteners like xylitol, which can be extremely dangerous for felines even in small quantities. Xylitol has been known to cause liver damage and hypoglycemia (low blood sugar) in cats within just a few hours of ingestion.
As if that weren't enough, many cats are lactose intolerant, which means they're unable to digest dairy products properly. For these felines, eating ice-cream can cause digestive problems like bloating and diarrhea.
The bottom line: No ice cream for your kitty. Sorry.
If your cat requires veterinary treatment due to eating onions (or any other unsafe food), pet insurance can help cover the cost of treatment.