Can dogs eat watermelon?
Yes, watermelon is a fantastic hot-weather treat for dogs. It's about 92% water, low in calories, and full of vitamins — but the seeds and rind must be removed first.
Fruits · 30 kcal per 100 g
Benefits and risks
Benefits
- 92% water — excellent for hydration on hot days
- Very low in calories at just 30 kcal per 100 g
- Contains vitamins A, B6, and C plus potassium
- Natural source of lycopene, an antioxidant
- Soft texture is easy for senior dogs to chew
Risks
- Seeds can cause intestinal blockage, especially in small dogs
- The rind is tough and can lead to GI upset or obstruction
- Too much can cause loose stools due to high water content
- Watermelon-flavored candy or drinks contain harmful sugar/xylitol
Recommended serving size
Adjust portions based on your dog's weight, age, and activity level. Treats and snacks should make up no more than 10% of daily calories.
| Dog size | Weight range | Serving |
|---|---|---|
| Small dog | Under 20 lbs (9 kg) | 1-2 small cubes |
| Medium dog | 20–50 lbs (9–23 kg) | 3-4 cubes |
| Large dog | Over 50 lbs (23 kg) | 1 cup of cubed flesh |
How to prepare and serve
Preparation
Remove the rind and pick out every seed before cutting the flesh into bite-sized cubes. Seedless watermelon is the easiest option. Frozen watermelon cubes are a popular hot-weather treat. Never offer watermelon-flavored candy, juice, or drinks.
Frequency
Several times per week in hot weather; occasional treat in cooler months.
Key nutrients
- Vitamin A
- Vitamin B6
- Vitamin C
- Potassium
- Lycopene
- Water
Frequently Asked Questions
- A few accidentally swallowed seeds usually pass through without issue, but multiple seeds — especially in small dogs — can clump together and cause an intestinal obstruction. Signs of a blockage include vomiting, loss of appetite, abdominal pain, lethargy, and constipation. If your dog eats a lot of seeds and shows any of these symptoms, contact your veterinarian immediately. To prevent the issue entirely, buy seedless watermelon or carefully remove every seed before sharing.
- Yes, the green rind is tough, fibrous, and very difficult for dogs to digest. Eating it can lead to vomiting, diarrhea, or even an intestinal blockage that may require surgery. Dogs with strong jaws sometimes try to chew the rind like a toy, but it's not safe. Always cut away both the green outer skin and the white pith before serving the red flesh. If your dog grabs a piece of rind off the table, monitor them for 24 hours.
- Plain, freshly blended watermelon juice (no added sugar or sweeteners) is fine in small amounts, but it loses most of the fiber that makes the whole fruit valuable and concentrates the sugar. Store-bought watermelon drinks almost always contain added sugar, artificial flavors, or preservatives, and some sugar-free versions may contain xylitol — which is fatally toxic to dogs. The safest option is to stick with fresh, seedless watermelon flesh cut into cubes.
Related fruits
Apples
SafeCrunchy, fibrous treat that helps clean teeth — just remove the core and seeds first.
Apricots
UnsafePit, leaves, and stem contain cyanide compounds — best avoided despite the safe flesh.
Bananas
SafeSweet, soft, easy-to-digest treat — excellent natural source of potassium but high in sugar.
Blackberries
SafeLow-sugar antioxidant powerhouse — like raspberries, contains trace xylitol but is safe in moderation.
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