No. Grapes can trigger sudden kidney failure in cats, and no one has pinned down a safe amount — even a few can be enough for some animals. The exact toxin is still uncertain, so treat any grape a cat eats as a potential poisoning, not a harmless snack.
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Danger — even a small amountTreat it as a poisoning risk
Can cats eat grapes? 🍇
No. Grapes can trigger sudden kidney failure in cats, and no one has pinned down a safe amount — even a few can be enough for some animals. The exact toxin is still uncertain, so treat any grape a cat eats as a potential poisoning, not a harmless snack.
Source-linked record · Last reviewed July 17, 2026 · Not veterinary advice
Why this answer
Grapes carry a nephrotoxin that injures the kidneys; a leading hypothesis points to tartaric acid and its potassium salt, which some animals cannot process. The dose-to-effect link is unpredictable, so a quantity one cat shrugs off can send another into acute kidney injury within a day or two.
Watch for
Vomiting, often within a few hours of eating
Loss of appetite and unusual tiredness
Increased and then decreased urination as the kidneys fail
Belly tenderness or diarrhea
How much is okay
None — never offer grapes, and keep bowls of them off tables and counters where a curious cat can reach.
Keep it away
Keep grapes in the fridge or a closed container, not in an open fruit bowl.
Sweep up any that roll onto the floor while snacking or cooking.
Tell guests and children not to share grapes with the cat.
Sources and evidence notes (3)
Raisin and Grape Toxicosis in Dogs
Merck Veterinary Manual — Grape and raisin ingestion associated with acute kidney injury; dose-response is unpredictable, anecdotal reports exist in cats, and conservative management treats any ingestion as potentially serious.
People Foods to Avoid Feeding Your Pets
ASPCA Animal Poison Control Center — Multi-species veterinary toxicology list covering alcohol, chocolate, caffeine, citrus, coconut, grapes and raisins, macadamia nuts, milk and dairy, nuts, onions, garlic and chives, raw meat and eggs, salty snacks, xylitol, and yeast dough.
Poison List
Pet Poison Helpline — Veterinarian-maintained toxin database for dogs and cats, reachable at (855) 764-7661, with per-substance toxicity levels, signs, and species notes.
Answer card
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Remove access. Take the food away and move your cat to another room.
Note the facts. What was it, roughly how much is missing, and when? Keep the packaging.
Call before symptoms. For chocolate, onion, garlic, grapes, raisins, alcohol, or anything sugar-free (xylitol), call a hotline or your veterinarian now — early treatment is easier and cheaper.
Never do this
Do not induce vomiting, feed milk, salt, or oil, or wait overnight to "see how it goes". Signs of chocolate or Allium poisoning can take hours to days to appear.
Go to an emergency vet immediately if
Your cat is collapsing, twitching or seizing, struggling to breathe, drooling heavily, vomiting repeatedly, or wobbly on their feet.
Outside the US? Call your local emergency veterinary clinic — keep the number saved in your phone.
Effective: July 17, 2026
Can Cats Eat It? provides general educational information for cat owners. It is not veterinary, diagnostic, treatment, or emergency advice.
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Effective: July 17, 2026
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