Food safety · Cats
Can Cats Eat Milk?
The short answer · Milk for cats
Despite the classic image, milk isn't a good drink for cats. The ASPCA explains that pets don't have significant amounts of lactase, the enzyme that breaks down milk sugar, so milk and other dairy can cause diarrhea or other digestive upset. Fresh water is the best drink for your cat.
Written by VetExpenses Editorial TeamFact-checked against cited sources · Veterinary review pendingLast reviewed
Educational information, not veterinary advice. If your pet is unwell or ate something worrying, call your veterinarian or a pet poison line now. Emergency steps.
On this page
Milk and cats: quick facts
| Verdict | Caution |
|---|---|
| Unsafe parts | Cow's milk; Cream and ice cream |
| Signs to watch for | diarrhea, digestive upset, stomach discomfort |
What to know about milk and cats
Key points
- Offer fresh water instead.
- If your cat drinks some milk, watch for loose stools; call your vet if diarrhea lasts or your cat seems unwell.
Risks
- Diarrhea and digestive upset from lactose (ASPCA)
What it could cost
If milk upsets your cat's stomach
We publish a price range only after it is checked against named sources — our vet visit guide is in verification. A vet bill for this kind of visit is usually built from these line items:
- Exam or emergency consultation fee
- Tests: bloodwork, urine tests or imaging
- Treatment, such as decontamination or medication
- Hospital stay and monitoring, if needed
- Follow-up visits and recheck tests
Other foods cats ask about
Frequently asked questions
Can cats drink milk?
It often upsets their stomach: the ASPCA says pets lack significant amounts of lactase, so dairy can cause diarrhea.
Sources
- People Foods to Avoid Feeding Your Pets. ASPCA Animal Poison Control Center. Accessed November 8, 2026.
- Sharing is Caring: Foods You Can Safely Share with Your Pet. ASPCA. Accessed November 8, 2026.
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