Can Dogs Eat Watermelon? Safe Amounts, Seeds and Rind

By Sam Rowan·October 12, 2026·5 min read

Yes, dogs can eat watermelon. The plain red flesh is a safe, low-calorie treat for most dogs, as long as you remove the seeds and the rind and only give a few small pieces at a time.

Watermelon is about 92% water, so it’s a refreshing snack on a hot day. But like any treat, the amount matters, and some parts of the fruit can cause problems.

Wondering about another food? Search 40+ human foods with our Can My Dog Eat It? checker.

Is watermelon good for dogs?

Watermelon has a few real benefits when you feed it the right way:

• Lots of water. At about 92% water, it can help your dog cool off in warm weather. It does not replace fresh drinking water, though.
• Low in calories. One cup of diced watermelon has only about 45–50 calories, much less than many store-bought dog treats.
• Vitamins and minerals. It contains vitamins A, B6 and C, plus potassium.
• No fat. Watermelon is naturally fat-free and cholesterol-free.

Your dog doesn’t need watermelon. A complete and balanced dog food already gives them everything they need. Think of watermelon as a healthy “extra,” not a source of nutrition.

How much watermelon can a dog eat?

Vets commonly recommend that treats make up no more than 10% of your dog’s daily calories. The other 90% should come from their regular, complete dog food. Watermelon counts toward that 10%, along with any other treats or table food.

For most dogs, that means a few bite-sized pieces at a time. Smaller dogs should get fewer pieces; larger dogs can have a bit more.

Here’s an example. If your dog needs about 600 calories a day, their treat budget is about 60 calories. That is a little over one cup of diced watermelon, if they get no other treats that day. Most dogs do get other treats, so a smaller handful is more realistic.

To find your dog’s daily calorie needs, use our dog food calculator, then take 10% of that number. Our guide on how much to feed your dog explains the numbers in more detail.

First time? Start with one or two small pieces and watch your dog for the next day. Some dogs get loose stools from new foods, and too much watermelon can cause diarrhea because of its natural sugar, fiber and water.

Can dogs eat watermelon seeds?

It’s best to remove them.

• Black seeds (the hard, mature ones) can be a choking risk for small dogs. If a dog eats a lot of them, they can cause an intestinal blockage.
• White seeds in “seedless” watermelon are soft, immature seed coats. They are less of a worry, but it’s still a good idea to pick out what you can, especially for small dogs.

If your dog swallowed one or two seeds, there’s usually no need to panic. Just watch for the warning signs listed below.

Can dogs eat watermelon rind or skin?

No. The green rind and the white part under it are tough and hard for dogs to digest. Chewing on rind can cause:

• Vomiting
• Diarrhea
• Belly pain
• An intestinal blockage if large pieces are swallowed

Blockages can be serious and sometimes need surgery. Throw rinds away in a closed trash can where your dog can’t reach them, and don’t leave them out at picnics or barbecues.

Can puppies eat watermelon?

Yes, in very small amounts, once your puppy is eating solid food. Puppy stomachs upset easily, so start with a tiny piece of seedless, rind-free flesh. Growing puppies need a complete puppy food for healthy development, so keep treats small. Our puppy weight calculator can help you track healthy growth.

Dogs with health problems: ask first

Watermelon is low in calories, but it does contain natural sugar. Talk to your vet before sharing it if your dog:

• Has diabetes. The sugar can affect blood sugar control.
• Has kidney disease or another condition that needs a special diet. Your vet may want to keep treats very limited.
• Has a sensitive stomach or a history of pancreatitis. Even “safe” new foods can trigger an upset.
• Is overweight. Every treat calorie counts. Plain watermelon is a better choice than most treats, but portions still matter.

How to serve watermelon to your dog

Always start with fresh, plain watermelon with the seeds and rind removed. Then try one of these:

• Small cubes: Cut bite-sized pieces that match your dog’s size.
• Frozen cubes: Freeze small pieces for a cool summer treat. For small dogs or fast eaters, let them soften a little first so they’re not too hard.
• Mashed and frozen: Blend seedless watermelon, pour it into an ice cube tray or a lick mat, and freeze.
• Mixed with plain yogurt: A spoonful of plain, unsweetened yogurt works for dogs that handle dairy well. Check the label for xylitol, which is toxic to dogs.

Skip these watermelon products:

• Watermelon candy, gummies and flavored drinks (too much sugar, and possibly xylitol)
• Watermelon ice cream and sorbet
• Fruit salads that might include grapes, which are toxic to dogs (see our guide on why dogs can’t eat grapes)
• Watermelon with salt, chili powder or other seasoning

When to call the vet

Most dogs that eat a little too much watermelon just get a mild upset stomach. But call your vet if your dog shows any of these signs, especially after eating rind or many seeds:

• Vomiting more than once, or trying to vomit with nothing coming up
• Diarrhea that lasts more than a day
• Belly pain, a swollen belly, or not wanting to be touched
• Not eating, or being unusually tired or weak
• Straining to poop or not pooping at all

These can be signs of an intestinal blockage, which is an emergency. If you’re not sure, it’s always better to call.

The bottom line

Watermelon is one of the safest fruits you can share with your dog. Feed only the red flesh, remove the seeds and rind, and keep it to a few small pieces. Count it as part of your dog’s 10% treat budget, which you can work out with our dog food calculator. For other fruits and snacks, check our Can My Dog Eat It? tool.