Quick answer: Dogs can drink a little milk, but many dogs are lactose intolerant and may get diarrhea.
Contrary to popular belief, adult cats should not drink milk: most are lactose intolerant.
What about other pets?
🐦 Birds (Not safe): Birds should not drink milk: birds cannot digest lactose.
🐹 Rodents and rabbits (Not safe): Rodents and rabbits should not drink milk either.
🐠 Fish (Not safe): Aquarium fish should eat only food made for their species; milk is not part of their diet and can foul the water.
Risks and precautions
- Most adult animals produce little lactase, the enzyme that digests lactose.
- It can cause diarrhea, gas and vomiting.
- Milk is high in calories and can contribute to weight gain.
How to offer milk safely
- If you want to give it to your dog, choose lactose-free milk in small amounts.
- Orphaned puppies and kittens need a milk replacer made for their species, never cow's milk.
How much is OK?
Foods outside the main diet, like milk, should only be treats. The general rule is that treats should not exceed 10% of daily calories — for small dogs and cats, that means very small portions. The first time, offer a little and watch for vomiting, diarrhea or itching over the next 24 hours.
My cat drank milk. What now?
If it was a small amount, watch your pet over the next 24 hours, offer fresh water and do not give the food again. Contact a veterinarian if the signs below appear or last more than a day.
Warning signs
- Diarrhea
- Gas and a bloated belly
- Vomiting
Frequently asked questions
Can puppies and kittens drink milk?
Young animals have more sensitive stomachs. If you offer it, wait until your pet is well adapted to solid food, start with a tiny amount and talk to your veterinarian first. For kittens, it is best to avoid it.
Can dogs and cats drink milk every day?
It is not recommended. Offer it only once in a while and in small amounts — and for cats, it is best to avoid it.
See also
- Can dogs and cats eat cheese? — 🐶 In moderation · 🐱 In moderation
- Can dogs and cats eat plain yogurt? — 🐶 In moderation · 🐱 In moderation
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This content is for information only and does not replace advice from a veterinarian. Every animal is unique: if your pet has health issues or allergies, or if you have any doubts, consult a professional.