Why cats should not have it
Kittens digest their mother's milk, but as a cat grows up its body makes less and less of the enzyme that breaks down lactose. Undigested lactose draws water into the gut and ferments, which can lead to diarrhoea, bloating or vomiting.
The picture of a cat lapping milk from a saucer is a myth. Milk does not replace water and adds calories and fat the cat does not need. Cow's milk is not right for kittens either: an orphaned kitten needs a special kitten milk replacer, which your vet can advise on.
What to watch out for
- Lactose can cause diarrhoea, bloating and vomiting.
- Milk and cream add fat and calories that can make a cat put on weight.
- Cow's milk is not suitable for kittens and can give them diarrhoea.
- If diarrhoea lasts longer than a day, the cat vomits more than once, will not eat, or a kitten has diarrhoea, contact a vet.
Different parts
Not every part of this food is equally safe.
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Cow's milk
Not safeCow's milk is high in lactose, so it is better not to give it to a cat.
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Lactose-free cat milk
In moderationLactose-free cat milk sold in pet shops is fine only as a treat, not instead of water.
What it can cause
Signs that can appear after eating it. Each page explains what to look out for and when to hurry to a vet.
What to give instead
Foods that are safer to give.
- Chicken Yes, plain cooked chicken without bones, skin or seasoning is one of the best treats you can give a cat. Safe
- Eggs Yes, a well-cooked egg, boiled or cooked without fat, is fine for a cat, but it is better not to give a raw egg. Safe
- Beef Yes, well-cooked lean beef without seasoning is a good treat for a cat; just trim off the fat and take out any bones. Safe