Taboo fruits for dogs include grapes, pineapples, pomegranates, passion fruit, cherries, star fruit, plums, avocados, etc. In addition to these fruits, dogs also have cores that cannot be eaten, such as apple cores, pear cores, etc. Dogs may suffer from food poisoning, kidney failure, or even death if they eat these fruits. You can give your dog apples, pears, watermelons, strawberries, blueberries and other fruits, but don’t eat too much at one time.