Can dogs and cats eat watermelon?

The information in this article has been reviewed by Dr. Rebecca MacMillan on 7 August 2025. Although it may provide helpful guidance, it should not be substituted for professional veterinary advice.

Can dogs eat watermelon?

Both hydrating and delicious, it’s easy to see why so many people love watermelon! But if your pet is begging you for a bite, can you offer them a try? The good news is yes! Watermelon is not toxic to cats or dogs; however, there are a few other considerations to keep in mind.

We’re going to explore the safest way to offer your pet watermelon, as well as some things to avoid. We’ll also look at whether watermelon has any nutritional health benefits for your pet.

Dogs can enjoy watermelon, provided it is only given to them as an occasional treat. Too much of any fruit or vegetable could lead to problems, like tummy upsets or dietary imbalances.

In people, watermelon provides the following health benefits, and some may apply to dogs too:

  • High water content – The high water content of watermelon makes it a great choice for hydration and keeping cool during warm weather. Watermelon is around 92% water, meaning it is also less calorie-dense than some other fruits or snacks.

  • Fibre – Fibre maintains healthy digestion and helps us to feel fuller for longer. Increasing dietary fibre can help people and animals on a weight-reduction diet.

  • Vitamin C – Humans (and guinea pigs!) cannot manufacture their own vitamin C, so they require it from dietary sources, such as watermelon. Dogs don’t need external vitamin C, but it won’t do any harm to receive a little extra.

  • Antioxidants – Watermelon contains plenty of antioxidants, which have been shown to have anti-inflammatory and protective effects in people. More research is needed into the benefits for dogs, though.

It’s important to remember that your dog will be getting all the nutrition they need from a good-quality, complete pet diet. You shouldn’t need to supplement them with additional foods, so you mustn’t go overboard with extras. However, it is nice to know that watermelon is a healthy choice for when you do want to give a little treat!

Can dogs eat watermelon skin?

Dogs should not be given melon rind to chew on. Watermelon skin is very tough to digest. If they swallow a large piece, it could be a choking hazard or cause an intestinal blockage. Both need emergency intervention.

How to prepare watermelon for dogs

Watermelon should be given raw and unseasoned to your dog. Remove the skin and seeds and chop the watermelon flesh into bite-sized pieces. This helps to avoid the risk of accidental choking.

How much watermelon can dogs eat?

Dogs should only have watermelon as an occasional treat. Fruits and vegetables, including melon, should make up no more than 10% of your dog’s daily diet. Too much watermelon could lead to mild stomach upset, including vomiting and diarrhoea, particularly if they haven’t had watermelon previously.

Can dogs have watermelon juice?

Dogs should stick to drinking fresh water. If you want to offer your dog a little watermelon juice, then homemade is better than commercial types, which could have added sugar or artificial sweeteners. An artificial sweetener called xylitol is particularly bad for dogs and is toxic.

Can dogs eat watermelon seeds?

Remove as many seeds as possible before serving to your dog. This is particularly important for puppies and small dogs, where large seeds could cause an intestinal blockage. However, for most, the odd seed or two will likely pass through the digestive tract without issue.

Can dogs eat frozen watermelon?

Dogs can enjoy frozen watermelon provided you chop it up into bite-sized pieces. Frozen chunks that are too big to safely tackle could cause choking.

Are there any watermelon-based foods dogs should avoid?

You should only give your dog fresh, raw watermelon and not watermelon-based foods. Things like watermelon flavoured sweets and sorbets contain little goodness and plenty of extra sugar. Some may contain artificial sweeteners, like xylitol, which is toxic to dogs.

Can cats eat watermelon?

So, we’ve covered watermelon for dogs, but can cats eat it, too? The answer is yes; watermelon is not toxic to cats. However, all the same rules apply. This means only offering it to your cat in moderation, as an occasional snack.

Many cats won’t be interested in watermelon, so don’t be surprised if your cat isn’t keen. Never force them.

Can cats eat watermelon skin?

Watermelon skin is too tough for cats to digest. It could be a choking risk or cause an intestinal blockage, so don’t offer it.

How to prepare watermelon for cats

Remove the skin and seeds and chop the watermelon flesh into small bite-sized pieces. Don’t offer melon that has been seasoned or sprinkled with sugar.

How much watermelon can cats eat?

Cats are obligate carnivores, so meat protein makes up a large percentage of their diet. Fruit and vegetables, such as watermelon, should only be given as an occasional treat. ‘Extras’ like this should make up no more than 10% of their daily diet; otherwise, you risk tummy troubles and dietary imbalances.

Can cats have watermelon juice?

Cats should stick to fresh water. While watermelon juice is not toxic, it may not be the healthiest option, particularly store-bought types. These can have additional sugars or artificial sweeteners.

Can cats eat watermelon seeds?

Watermelon seeds are not toxic to cats, but they may cause problems. Large seeds could potentially cause a gut obstruction in very small cats or kittens. It’s best to remove them before serving.

Can cats eat frozen watermelon?

Cats can enjoy frozen watermelon if it is served to them in small, manageable pieces. Large chunks of frozen melon could be a choking hazard.

Are there any watermelon-based foods cats should avoid?

You shouldn’t give your cat any processed products containing watermelon, such as sweets or sorbets. These will contain very little watermelon goodness and may have a high sugar or artificial sweetener content.

Watermelon is a great snack choice for both people and pets on long summer days. Just remember not to overdo it. Too much could cause tummy troubles for your pet, so offer it in moderation. If your pet has eaten too much watermelon or seems unwell after eating it, then make sure to call your vet for some advice.

Food safety statuses

Safe

Could be given almost daily without harm

Safe in moderation

Not toxic, but should not be given regularly

Unsafe

Toxic or simply too risky to give to your pet