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Can dogs eat grapes?

Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual

No — avoid
Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxin (recently identified as tartaric acid) varies in concentration making 'safe' doses impossible to predict.

The short answer

No — avoid — dogs should never eat grapes. toxic, can cause kidney failure Sweet berries growing in clusters; raisins are dried grapes.

Why it's dangerous

Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxin (recently identified as tartaric acid) varies in concentration making 'safe' doses impossible to predict.

Symptoms to watch for

Vomiting within 24 hrs, lethargy, loss of appetite, diarrhea, decreased urination, abdominal pain. Kidney failure can develop in 24–72 hrs.

What every dog owner should know

  • Even ONE grape can be dangerous for small dogs
  • Raisins are MORE concentrated — even more toxic by weight
  • If your dog ate any, call your vet or ASPCA Poison Control (888-426-4435) immediately
  • Induce vomiting only if instructed by a vet

What to do if your dog ate grapes

  1. Stay calm and assess how much was eaten and when.
  2. Call your vet or ASPCA Animal Poison Control at 888-426-4435 (consultation fee may apply).
  3. Alternatively, Pet Poison Helpline: 855-764-7661.
  4. Do not induce vomiting unless explicitly instructed by a vet.
  5. Have product packaging or the food itself ready to describe to the vet.
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Puppy safety

Grapes is even more dangerous for puppies than adult dogs. Their smaller body weight means the same amount delivers a much higher toxic dose per pound. Their developing organs are also less able to process and clear toxins. If your puppy ate any amount of grapes, contact your vet immediately — don't wait for symptoms.

What to do if your dog ate grapes

  1. Don't wait for symptoms. Some toxic effects start hours later but treatment is most effective when given early.
  2. Call your vet or an animal poison control hotline now:
    • ASPCA Poison Control: (888) 426-4435 (fee may apply)
    • Pet Poison Helpline: (855) 764-7661
  3. Have these details ready: your pet's weight, the amount eaten, when it happened, and any symptoms you've noticed.
  4. Don't induce vomiting unless the vet specifically tells you to. Inducing vomiting at home can cause aspiration in some cases.
  5. Save the packaging or a sample of what was eaten — this helps the vet identify ingredients.
See full emergency guide

Safer alternatives to grapes

Looking for a safe treat? Here are vet-approved alternatives dogs can enjoy instead:

🍎
Apples
Yes — without seeds or core
🍌
Bananas
Yes — peeled, in moderation
🍓
Strawberries
Yes — in moderation
🫐
Blueberries
Yes — superfood for dogs
🍉
Watermelon
Yes — flesh only, no rind/seeds

Frequently asked questions

Is grapes toxic to dogs?
Yes — Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxin (recently identified as tartaric acid) varies in concentration making 'safe' doses impossible to predict.
How much grapes is too much?
Any amount can be dangerous. Even small ingestions warrant a call to your veterinarian.
Can puppies eat grapes?
No — and even more dangerous than for adults due to lower body weight. Contact your vet immediately if a puppy eats any amount.
What are the symptoms of grapes poisoning in dogs?
Vomiting within 24 hrs, lethargy, loss of appetite, diarrhea, decreased urination, abdominal pain. Kidney failure can develop in 24–72 hrs.
What should I do if my dog ate grapes?
Call ASPCA Poison Control at (888) 426-4435 or your veterinarian immediately. Don't wait for symptoms.

Frequently asked questions

Can dogs eat grapes?
No — avoid. Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxin (recently identified as tartaric acid) varies in concentration making 'safe' doses impossible to predict.
What happens if a dog eats grapes?
Vomiting within 24 hrs, lethargy, loss of appetite, diarrhea, decreased urination, abdominal pain. Kidney failure can develop in 24–72 hrs.
Is grapes toxic to dogs?
Yes — grapes is toxic to dogs. Even small amounts of grapes or raisins can cause acute kidney failure in dogs. The exact toxin (recently identified as tartaric acid) varies in concentration making 'safe' doses impossible to predict.
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