Can Dogs Eat Watermelon? Safe Serving Tips & Health Benefits
May 02, 2025 | By Ashleigh Tosh
Dare I say it, but Summer feels like it's well and truly on its way!
The signs are subtle - British strawberries in the supermarkets, sunny days blurring into sunny evenings, daily walks with your dog in a t-shirt rather than "just in case" layers hinting that summer temperatures are just - around - that - corner...
Of course, as the warmer weather gently creeps in, it's only natural our eating habits start to change, and one seasonal fruit that us Brits seem to not get enough of at this time of year is Watermelon.
And, when you think about it, it's pretty easy to see why...
After all, it's the classic taste of summer - sweet, juicy, and deliciously refreshing.
But while you're slicing it up for a picnic or enjoying a chilled chunk in the garden (whilst your dog looks on longingly), you may have found yourself wondering: can my dog eat watermelon?
In short, the answer is yes - dogs can eat watermelon!
In fact, when served properly, it can be a safe, hydrating, and nutritious treat for most dogs. But before you start tossing chunks their way, there are a few things you need to know to make sure you're feeding it the right way and for the right reasons.
Table of Contents
Is Watermelon Safe for Dogs?
Yes, watermelon is safe for dogs to eat - as long as you serve it correctly.
The soft red or pink flesh of the watermelon is non-toxic to dogs and actually offers a number of health benefits (more on these later).
That said, the seeds and rind can potentially pose problems. You see seeds, even in small numbers, may cause intestinal blockages, especially in smaller dogs. And the rind, while not toxic, is difficult for dogs to digest and may cause stomach upset or even vomiting.
So, the golden rule is to only feed your dog the seedless, flesh-only part of the fruit. That way, you get all the benefits without the potential hazards!
What Makes Watermelon a Good Treat for Dogs?
One of the biggest reasons watermelon is such a popular fruit with dogs (and people!) is its high water content. At around 92% water, it's an excellent way to keep your dog hydrated, especially during the warmer months. It's also low in calories, which means it won't wreck your dog's diet or waistline, provided it's fed in moderation.
Nutritionally, watermelon packs in several helpful vitamins and minerals all of which will support your pup's health and well-being.
For instance, watermelon provides your dog with a natural source of vitamins A, B6, and C, all of which support various aspects of canine health - from immune function and vision to metabolism and skin condition.
It also contains potassium, which helps regulate nerve and muscle function, and lycopene, a powerful antioxidant.
Why is this good? Well, according to the National Research Council's Nutrient Requirements of Dogs and Cats, these micronutrients are key to maintaining overall health, especially when offered as part of a balanced diet!
How Much Watermelon Is Too Much for Your Dog?
As with any treat, moderation is key.
While watermelon is low in fat and calories, it does contain natural sugars and fibre, which can cause digestive upset in large amounts. So it's best to offer it occasionally, in small portions appropriate to your dog's size.
For smaller breeds, a few bite-sized chunks are more than enough, meanwhile medium to large dogs can handle a bit more - maybe half a cup or so - but it should never make up a significant portion of their diet. The general rule is that treats should account for no more than 10% of your dog's daily calorie intake, and watermelon is no exception.
As always, introduce any new food slowly to your dog and monitor your pup for any signs of intolerances of digestive upset like loose stools, excessive gas or a loss of appetite.
How to Serve Watermelon to Your Dog
 Once you've removed the seeds and rind, there are plenty of fun and dog-friendly ways to serve watermelon - especially in summer when your pup could use a little extra hydration.
Chilled cubes
Simple, fresh chunks of watermelon served cold make a refreshing snack on hot days.
Frozen bites
Pop small, seedless cubes in the freezer and offer them as cooling summer treats - this is especially great for teething puppies.
Watermelon puree
Blend the flesh into a smooth puree and drizzle it over your dog's regular food for a moisture-rich topper.
Ice lollies for dogs
Combine blended watermelon with plain, unsweetened Greek yoghurt and freeze in silicone moulds for homemade pupsicles (and a probiotic boost).
Stuffed in a Kong
Mix mashed watermelon with a spoonful of banana or a dollop of dog-safe peanut butter, stuff it into a Kong toy, and freeze for a longer-lasting enrichment treat.
Layered smoothie bowls
If you enjoy making occasional "doggy desserts," layer pureed watermelon with dog-safe fruits like blueberries or apple for a fun presentation.
Whatever method you choose, keep the portion size small and suited to your dog's needs. Watermelon should remain an occasional treat - not a daily snack.
Are There Any Risks Giving my Dog Watermelon?
For most healthy dogs, watermelon is a safe and enjoyable treat. But there are a few scenarios where caution - or a chat with your vet - is necessary.
Dogs with diabetes, for example, may need to avoid watermelon due to its sugar content. While it's natural sugar, it can still spike blood glucose. Similarly, dogs with particularly sensitive stomachs or those on strict elimination or prescription diets might not tolerate watermelon well.
And while food allergies to watermelon are rare in dogs, they're not impossible. If your dog experiences any signs of an allergic reaction - like itching, swelling, hives, vomiting, or diarrhoea - after eating watermelon, stop feeding it immediately and contact your vet.
When Not to Give Watermelon to Your Dog
There are certain situations where even a small amount of watermelon may not be appropriate.
Puppies under 12 weeks old, for example, have sensitive digestive systems that may not handle fruit well. Dogs prone to pancreatitis or gastrointestinal issues should also steer clear, especially if their vet has advised against sugary foods. And if your dog is already overweight or on a tightly managed calorie-controlled diet, even fruit snacks may need to be limited.
If you're unsure whether watermelon is right for your dog, your vet can offer tailored advice based on your dog's individual health needs.
In Conclusion - Can Dogs Eat Watermelon?
Yes - when prepared properly and fed in moderation, watermelon can be a refreshing, hydrating, and nutritious treat for your dog. It's a great way to help your pup cool down in summer and adds a bit of variety to their treat routine.
Just remember to keep it simple: no seeds, no rind, and no excess. Watermelon should be an occasional extra - not a replacement for a balanced, complete diet.
What summer fruits does your dog love? Let us know in the comments!
About the author
 Ashleigh Tosh - Content Writer at All About Dog Food
Ashleigh's a professional writer with over a decade’s experience, including several years focused on human nutrition and the fitness industry. That extensive understanding of ingredients and health translated naturally into her passion for dog nutrition, sparked when her late Dogue De Bordeaux developed digestive issues. Now a Content Writer for All About Dog Food, she's delighted to help dog owners all over the UK make informed choices for their pups. She lives with Frank, her lively Rottweiler, and credits his energy and very shiny coat to a great diet, and plenty of play (he's a big fan of tug-o-war).
Frequently Asked Questions
Can dogs eat watermelon seeds or rind?
No. Seeds can pose a choking hazard or cause blockages, while the rind is difficult to digest and may lead to gastrointestinal upset. Always serve only the soft, seedless flesh.
Is watermelon good for dogs with health issues like kidney or heart problems?
Watermelon is high in potassium and fluid, which can be a concern for dogs with advanced kidney disease or heart conditions. In these cases, always consult your vet before feeding fruit.
Can watermelon cause diarrhoea in dogs?
Yes, if fed in large quantities or if your dog is sensitive to fruit. Start with small amounts and observe how your dog reacts before making it a regular treat.
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