Can Cats Have Milk? Safer Treats and What to Give Instead

Short answer: most adult cats should not drink cow's milk. Despite the classic image of a cat lapping a saucer, the majority are lactose intolerant, and milk tends to cause more harm than good. The good news is there are safer, more rewarding treats — this guide covers what to give instead and what to do if your cat has already had some.

For the biology of why milk causes problems, see our companion science guide (linked below). This article is the practical what-to-do version.

Key takeaways

• Most adult cats are lactose intolerant — skip cow's milk.

• Fresh water is the best everyday drink; cats on fresh food get extra moisture too.

• Lactose-free "cat milk" and unsalted bone broth are safer occasional treats.

• A little milk once won't usually harm — watch for tummy upset and offer water.

So, Can Cats Have Milk At All?

It is not a problem if a small quantity of cow's milk is given on an occasional basis, but it is not suitable for most adult cats. Kittens have enough of the enzyme lactase to break down milk, but this diminishes as they mature and milk that may appear like a delicious treat can cause an upset tummy.

Safe vs. Avoid: A Quick Drinks Guide

Safer for cats

1. Fresh, clean water (always)

2. Lactose-free "cat milk" (occasional treat)

3. Unsalted, homemade bone broth (no onion/garlic)

4. Moisture from fresh/wet food

Best avoided

1. Cow's milk (regular)

2. Cream and full-fat dairy

3. Flavored or sweetened milks

4. Plant milks with additives or sweeteners

The Best Alternatives, Ranked

1. Fresh water. The single best drink for cats — essential for kidney health and digestion. Keep it clean and always available.

2. Moisture from food. Cats naturally get much of their hydration from food. Fresh, gently cooked meals boost water intake alongside the bowl.

3. Lactose-free cat milk. Formulated to be safe, it's a fine occasional treat — not a daily drink.

4. Unsalted bone broth. Homemade and additive-free, it's a hydrating, tasty treat. Avoid store-bought broths with onion or garlic.

What to Do If Your Cat Has Already Had Milk

Don't panic — a small amount usually just means a temporary tummy upset. Take these steps:

• Stop offering any more milk or dairy.

• Provide plenty of fresh water.

• Watch for diarrhea, vomiting, gas, or bloating over the next 12–24 hours.

If symptoms are severe or persist, contact your vet.

Book a vet through PawPots Vet Connect.

Hydration Starts With the Bowl

Cats are famously low drinkers, so moisture-rich food matters. At PawPots, fresh, moisture-rich meals for cats with human-grade ingredients, made in the UAE and portioned to your cat — helping keep them hydrated the natural way, without any need for milk.

Want the Science?

To understand exactly why milk upsets most cats — lactose, lactase, and what happens in the gut — read our companion guide: Can Cats Drink Milk? The Science Explained.

Frequently Asked Questions

Can cats drink milk safely?

Most adult cats are lactose intolerant and regular cow's milk is best avoided as this tends to upset their stomach. A little, but not often, is no big deal.

What can I give my cat instead of milk?

Fresh water is best. For an occasional treat, lactose-free "cat milk" or unsalted homemade bone broth (no onion or garlic) are safer choices. Fresh or wet food also boosts hydration.

Is lactose-free cat milk okay?

Yes, once in a while as a special treat. It is made with no lactose that causes issues, but is meant to be used only in addition to fresh water and never as a substitute.

My cat drank milk — should I worry?

A little typically causes only a brief tummy upset. Discontinue milk, offer fresh water and monitor for diarrhea, vomiting or bloating. If symptoms are severe/do not settle, consult a vet.