Can dogs eat watermelon?
Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual
The short answer
Yes — dogs can safely eat watermelon. flesh only, no rind/seeds Large green-rind fruit with red, water-rich flesh.
Why it's okay
92% water makes it perfect for hydration on hot days. Contains vitamins A, B6, C and potassium.
How much watermelon can a dog eat?
Cubes of flesh only. A few cubes for small dogs, more for large.
What every dog owner should know
- Remove ALL seeds — can cause intestinal blockage
- Never feed the rind — hard to digest, can cause obstruction
- Frozen watermelon is excellent in summer
How much watermelon can dogs have?
Treats — including watermelon — should make up no more than 10% of daily calories. Use these portion sizes as a starting point and adjust for your dog's activity level and overall diet.
| Dog size | Recommended amount |
|---|---|
| Toy (under 10 lb) | 1 teaspoon-sized piece, 1-2× per week |
| Small (10-25 lb) | 1 tablespoon-sized piece, 2-3× per week |
| Medium (25-50 lb) | 2 tablespoons or 1 small slice, 2-3× per week |
| Large (50-90 lb) | 1/4 cup or 2 small slices, 3× per week |
| Giant (over 90 lb) | 1/3 cup or 3 small slices, 3× per week |
These are general guidelines — always consult your veterinarian for portion recommendations specific to your pet's health, weight, and existing diet.
Puppy safety
Watermelon is generally safe for healthy puppies once they're fully weaned (around 8 weeks). Start with very small amounts — about 1/4 of the adult portion — and watch for any digestive upset over 24 hours before offering more. Never replace dog food with treats; growing animals need their balanced nutrition first.
What to do if your dog ate watermelon
Watermelon is generally safe in moderation. If your dog ate too much, you may see mild stomach upset (gas, soft stool) — usually resolves on its own within 24 hours. Contact your vet if you see vomiting, lethargy, or symptoms lasting more than a day.
See full emergency guideOther safe fruits for dogs
If your dog likes watermelon, they may also enjoy these safe options: