Although pineapples are rich in vitamins and minerals, the alkaloids and bromelain they contain can irritate a cat's oral mucosa and gastrointestinal tract, potentially causing indigestion symptoms such as diarrhea and vomiting.

In addition, the acidity of pineapple may affect a cat's oral health. Therefore, for the sake of your cat's health, it is best not to feed them pineapple.