What are the symptoms of Grapes poisoning in cats?

vomiting within a few hours, lethargy and weakness, loss of appetite, decreased or no urination, abdominal pain, kidney failure

Grapes

Q: Can cats eat Grapes?

Toxic: Never — can cause kidney failure. Treat as dangerous. Grapes and raisins can cause acute kidney failure in cats. While grape toxicity is less extensively documented in cats than in dogs, veterinary consensus treats grape and raisin ingestion in cats as a serious emergency. The toxic compound has not been definitively identified, but the reaction can occur with any variety — seedless, seeded, red, green, or peeled. Even a small number of grapes can be dangerous. Cats are smaller than dogs and may be more susceptible to the unknown toxin. Source: ASPCA.

Toxic

Verdict

Never — can cause kidney failure. Treat as dangerous.

Toxic principle: tartaric acid (2022 research identifies dog-specific renal transporter; mechanism may not apply to cats)

Source: ASPCA · Verified 2026-06-12

If your cat ate this

Cats hide symptoms — don't wait and see. Even small amounts of certain substances can be fatal to a cat. Act fast.

1. Call your veterinarian immediately
US — National hotline: ASPCA Animal Poison Control Center (888) 426-4435 aspca.org(24/7, Consultation fee may apply.)
US — National hotline: Pet Poison Helpline (855) 764-7661 petpoisonhelpline.com(24/7, $89 per incident fee; also covers Canada.)
GB — National hotline: Animal PoisonLine 01202 509 000 animalpoisonline.co.uk(24/7, £35 per call (8am–8pm weekdays), £45 at other times.)
AU — National hotline: Animal Poisons Helpline 1300 869 738 animalpoisons.com.au(24/7)
NZ — National hotline: Animal Poisons Helpline 0800 869 738 poisons.co.nz(11am–7pm NZ time (currently being extended), Charges apply.)
CA — National hotline: Pet Poison Helpline (855) 764-7661 petpoisonhelpline.com(24/7, $89 per incident fee.)

Verified 2026-08-06

Verdict

Grapes and raisins can cause acute kidney failure in cats. While grape toxicity is less extensively documented in cats than in dogs, veterinary consensus treats grape and raisin ingestion in cats as a serious emergency. The toxic compound has not been definitively identified, but the reaction can occur with any variety — seedless, seeded, red, green, or peeled. Even a small number of grapes can be dangerous. Cats are smaller than dogs and may be more susceptible to the unknown toxin.

Symptoms to watch for

• vomiting within a few hours
• lethargy and weakness
• loss of appetite
• decreased or no urination
• abdominal pain
• kidney failure

What to do

This is an emergency. Contact your vet or ASPCA Poison Control (888-426-4435) at once. If ingestion was recent, your vet may induce vomiting and administer IV fluids to protect the kidneys.

ASPCA Animal Poison Control Center: (888) 426-4435 aspca.org