Bananas aren't toxic to cats, but they contain a lot of sugar, which cats have trouble digesting. A piece of banana as an occasional treat will probably not harm your pet, but consuming it on a regular basis can increase their blood sugar levels, causing weight gain and diabetes.
What happens if a cat eats a banana?
QUESTION: Are bananas healthy for a cat to eat? ANSWER: Bananas are rich in vitamins and minerals yet, they're not exactly healthy for a cat's system. Although a small amount won't hurt, too many bananas can cause GI issues such as constipation.
Is it safe for a cat to eat bananas?
Bananas are a safe and healthy treat for your cat, but they need to be given in small amounts like all the items on this list. Your cat shouldn't eat a banana—or even half a banana. Instead, just give her a small slice from your banana. Don't be surprised if your cat turns her nose up at your offering.
How much banana can a cat eat?
Carbohydrates, which turn to sugar in the body, are plentiful in bananas. Too much sugar for any species can lead to diabetes, and cats are no exception. You can safely offer a small piece (about the size of one kibble) to your cat if they insist that your banana is the perfect snack.