Food · 🐱 Cats

Can cats eat milk?

Caution for cats

Despite the cartoons, most adult cats are lactose intolerant. Milk often causes diarrhea.

What’s the risk?

Kittens drink their mother’s milk, but most cats lose the enzyme to digest lactose after weaning. Water is all a cat needs. Lactose-free cat milk is available as an occasional treat.

Signs to watch for

  • Diarrhea
  • Gas
  • Vomiting

How much is dangerous?

Best avoided. A lap or two rarely causes serious harm.

If your cat ate some

Mild upset should pass. Call your vet if diarrhea lasts more than a day.

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline, Merck Veterinary Manual. This is general information, not veterinary advice. If your pet ate something and you’re worried, call your vet or a poison line right away.