No — grapes are toxic to dogs. This includes all varieties (red, green, seedless, concord) and all forms (fresh, dried/raisins, in food). There is no established safe dose. If your dog ate grapes, call your vet or the ASPCA Animal Poison Control Center at 888-426-4435 immediately — do not wait for symptoms.
No — grapes are toxic and can be fatal
Grapes in any amount, variety, or form can cause sudden, irreversible kidney failure in dogs. The toxic compound has not been identified, which means there is no way to determine a safe amount. Treat any grape or raisin ingestion as an emergency.
Why are grapes toxic to dogs?
Grapes and raisins have caused acute kidney failure in dogs — and researchers still do not know the exact toxic compound. This unknown mechanism makes grapes especially dangerous: there is no dose-response threshold, some dogs have severe reactions to a single grape, and others appear to tolerate them only to have delayed kidney failure days later. The unpredictability is the reason veterinary toxicologists treat all grape/raisin ingestions as a veterinary emergency.
Signs of grape poisoning in dogs
Symptoms typically appear within 6–12 hours but can be delayed:
- Vomiting or diarrhea (often within a few hours)
- Loss of appetite, lethargy or weakness
- Abdominal pain, reduced or absent urination
- Tremors or seizures (in severe cases)
What to do if your dog ate grapes
- Call your vet or an emergency animal hospital immediately.
- Call ASPCA Animal Poison Control: 888-426-4435 (available 24/7).
- Note how many grapes were eaten, when, and your dog’s weight.
- Do not induce vomiting unless specifically directed to do so by a veterinarian.
Are raisins also toxic?
Yes — raisins are dried grapes and are actually more concentrated in whatever toxic compound causes kidney failure. Raisins in trail mix, baked goods, and cereal are common accidental sources. Always check ingredient labels on human foods before sharing any with your dog.
