9. Milk or Cream
Only kittens are lactose tolerant. Once they grow up, cats must not be given cream or milk. Lactose that cannot be broken down in the cat’s digestive system will cause diarrhea. The problem might sometimes get as severe as to make you take your pet to the vet. In some cases urgent treatment is required to save your cat’s life.

10. Avocado
Avocado is a fruit that contains persin. This fungicidal toxin is not dangerous to humans, but very toxic to all domestic animals. The whole of the avocado is toxic. Never let your pet play with avocado pits or shells. If consumed in large quantities, avocado may cause respiratory problems, fluid building up around the heart, and gastrointestinal issues. Any of the above mentioned health problems can lead to death.

Consult the vet over the phone or, if possible, take your cat to the vet if you notice the signs of intoxication described above.