Grapes and raisins are toxic to dogs and can cause acute kidney failure. There is no known safe dose. Seek emergency vet care immediately if your dog eats any.

How much grapes can I give my dog?

Grapes is not recommended for dogs.

Can Dogs Eat Grapes?

Q: Is grapes toxic to dogs?

Yes, Grapes is toxic to dogs. Grapes, raisins, currants, and sultanas are all toxic to dogs. The exact mechanism was recently linked to tartaric acid, though the reaction remains idiosyncratic — meaning some dogs can eat grapes without apparent harm, while others develop fatal kidney failure from very small amounts. Early signs include vomiting and lethargy within 12–24 hours, followed by decreased urination as kidney function declines. Immediate veterinary treatment with aggressive IV fluid therapy is critical — delayed treatment significantly worsens prognosis.

Short Answer: NO (Toxic)☠️ Toxic

Quick Facts

Safety Level

☠️ Toxic

Detailed Information

Grapes, raisins, currants, and sultanas are all toxic to dogs. The exact mechanism was recently linked to tartaric acid, though the reaction remains idiosyncratic — meaning some dogs can eat grapes without apparent harm, while others develop fatal kidney failure from very small amounts. Early signs include vomiting and lethargy within 12–24 hours, followed by decreased urination as kidney function declines. Immediate veterinary treatment with aggressive IV fluid therapy is critical — delayed treatment significantly worsens prognosis.

⚠️ Warnings & Preparation

⚠️There is NO known safe dose — even 1 grape per 4.5 kg body weight has been linked to kidney injury
⚠️Raisins are even more concentrated and dangerous
⚠️Found in trail mix, baked goods, and some commercial dog treats (illegally)

Symptoms to Watch For

If ingested, watch for:

VomitingLethargyDecreased urinationAcute kidney failureDeath

Onset time: Within 24 hours; kidney damage in 24–72 hours

🐕 Breed-Specific Notes

No breed is immune. Idiosyncratic reaction — some dogs eat grapes with no apparent effect, while others develop fatal kidney failure from a single grape.

Looking for Safe Treats?

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Data Accuracy

All food safety data is sourced from peer-reviewed veterinary references and established animal health organizations. While we strive for accuracy, new research may change safety classifications. Last reviewed: August 2026. Report an error: support@pawscale.com

📎 Sources

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Disclaimer

This information is based on data from ASPCA, AKC, and Merck Veterinary Manual. Individual dogs may have allergies, sensitivities, or health conditions that affect food safety. The serving guidelines are general recommendations — your veterinarian can provide personalized advice based on your dog's specific needs. PawScale is not liable for any adverse reactions resulting from the use of this information.

Data sources: Source 1, Source 2. Last reviewed: August 2026. Report an error: support@pawscale.com

Medical Disclaimer

The information on PawScale is for educational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian before making changes to your dog's diet. If you suspect your dog has ingested a toxic substance, contact your veterinarian or the ASPCA Animal Poison Control Center (888) 426-4435 immediately.