It is best to avoid giving grapes or raisins to cats. Evidence of toxicity in cats specifically is less established than in dogs, but because there is no known safe amount, the sensible approach is to treat them the same way and keep them away from your cat.

Why don't cats like sweet fruit?

Cats lack the taste receptors that let most mammals detect sweetness, which is a large part of why far fewer cats show interest in fruit compared with dogs. It is not a rule that no cat will ever try fruit, just that most have little instinctive interest in it.

Is watermelon safe for cats?

The flesh, with the rind and seeds removed, is generally considered low risk in small amounts for a cat who shows interest in it. It offers no real nutritional benefit to a cat, so it should stay an occasional curiosity rather than a regular treat.

Can cats eat citrus fruit?

It is best avoided. Citrus fruits can be irritating to a cat's mouth and stomach, and most cats naturally avoid the smell in any case, so there is no reason to offer orange, lemon or lime deliberately.

Is avocado safe for cats?

No, avocado is best kept away from cats. It contains a compound called persin, which is associated with toxicity in a number of animals, it is not something a cat's diet needs, and there is no upside for a cat that would justify the risk of offering it.

Can cats eat fruit?

Cats can eat small amounts of some fruits safely, but the honest answer is that they gain nothing from it — cats are obligate carnivores and most cannot even taste sweetness, so fruit is never more than a curiosity rather than something to build into their diet. A few common fruits genuinely need to be kept away from cats altogether.

Why fruit matters less to cats than to dogs

Cats are obligate carnivores, meaning their bodies are built to get everything they need from meat, and they lack the taste receptors that let most mammals detect sweetness. That is a large part of why far fewer cats show any interest in fruit compared with dogs, who often actively enjoy it.

This does not make fruit dangerous by default, but it does mean there is little reason to offer it. Where a fruit is genuinely safe, it is a small novelty at most rather than a treat with any real benefit for a cat.

Fruits generally considered safe in tiny amounts

A small piece of deseeded apple, a slice of banana, or a few blueberries are generally considered low risk for cats who show interest in them, offered plain and in genuinely small quantities. Watermelon flesh, with the rind and seeds removed, falls into the same low-risk category.

None of these need to become a regular feature of your cat's diet, and most cats will show little interest in the first place. If your cat does like a small taste occasionally, there is no strong reason to stop them, provided it stays occasional and the fruit is prepared properly.

Fruits to keep away from cats

Grapes and raisins are best avoided for cats, following the same precautionary approach taken with dogs, even though the evidence in cats specifically is less established — there is no reliable safe amount, so the sensible position is to treat them as a risk rather than wait for more certainty.

Citrus fruits such as lemon, lime and orange are unpleasant and potentially irritating to cats, and cats generally avoid them on their own due to the strong smell. Avocado is another to keep away from cats, along with any fruit-based product containing xylitol, a sweetener that is highly toxic to cats and dogs alike.

What actually suits a cat's diet

If you want to give your cat something as a treat, a product made specifically for cats reflects what their diet is actually built around, rather than a fruit repurposed from a person's shopping. Our cat treats range and wet food pouches are designed with a carnivore's needs in mind.

If your cat has shown a genuine interest in a particular fruit, mention it to your vet at a routine check, particularly if your cat has any existing health condition — otherwise, there is little to gain from actively introducing fruit to a cat's diet.

Make treat time better

Things we stock that owners commonly reach for here. Nothing on this page depends on you buying one.

Dried Catnip & Cat Grass Leaf Treats

A tub of dried catnip and cat grass leaves to sprinkle over toys, scratchers and bedding.

From£8.99

Turkey Tail Mushroom & Probiotic Powder

A bacon-flavoured turkey tail mushroom and probiotic powder you sprinkle over food. Made to support immunity, energy and gut health, with scoop guidance for every weight from small to large pets.

£13.99

Fast UK delivery

Bugalugs Scottish Salmon Oil for Dogs & Cats 500ml

A 100% natural daily supplement rich in omega 3, 6, and 9 from high-quality Scottish salmon — supports skin, coat, joints, and brain health.

£13.99

Browse all of Can cats eat… →

Common questions

Can cats eat grapes?: It is best to avoid giving grapes or raisins to cats. Evidence of toxicity in cats specifically is less established than in dogs, but because there is no known safe amount, the sensible approach is to treat them the same way and keep them away from your cat.
Why don't cats like sweet fruit?: Cats lack the taste receptors that let most mammals detect sweetness, which is a large part of why far fewer cats show interest in fruit compared with dogs. It is not a rule that no cat will ever try fruit, just that most have little instinctive interest in it.
Is watermelon safe for cats?: The flesh, with the rind and seeds removed, is generally considered low risk in small amounts for a cat who shows interest in it. It offers no real nutritional benefit to a cat, so it should stay an occasional curiosity rather than a regular treat.
Can cats eat citrus fruit?: It is best avoided. Citrus fruits can be irritating to a cat's mouth and stomach, and most cats naturally avoid the smell in any case, so there is no reason to offer orange, lemon or lime deliberately.
Is avocado safe for cats?: No, avocado is best kept away from cats. It contains a compound called persin, which is associated with toxicity in a number of animals, it is not something a cat's diet needs, and there is no upside for a cat that would justify the risk of offering it.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.