Raisins are dehydrated grapes and are generally considered to carry the same risk in a more concentrated form. As with grapes, the toxic mechanism is not confirmed — a link to tartaric acid has been proposed — and the reaction appears idiosyncratic, affecting only some individuals. Evidence in cats specifically is limited to anecdotal and occasional case reports rather than confirmed studies.
No safe amount is established, and because raisins are a concentrated form of grapes, a smaller quantity may carry equivalent risk to a larger amount of fresh grapes. Veterinary sources recommend avoiding raisins for cats as a precaution given the potential for acute kidney failure in sensitive individuals, even though direct feline case evidence is limited.
Contact a veterinarian or pet poison hotline right away, even if your cat seems fine. Kidney damage can follow, and prompt advice matters.
Yes. Cookies, breads, and trail mixes that contain raisins carry the same risk, and they may also contain chocolate or other hazards.
General public resources referenced while researching this tool's topic.
General educational guidance based on the references above, not veterinary advice. See our editorial policy for how we choose sources.
This tool is intended for educational purposes only and should not be used as a substitute for emergency veterinary advice, diagnosis, or treatment.
If your pet may have consumed toxic foods, chocolate, medications, chemicals, or other dangerous substances, seek immediate help from a licensed veterinarian or emergency animal service in your area. Do not delay professional care based on calculator or search results alone.
Pet poison hotlines (24/7, US and Canada):
ASPCA Animal Poison Control Center: (888) 426-4435
·
Pet Poison Helpline: (855) 764-7661
Pet Poison Helpline states its service covers the U.S., Canada and the Caribbean. The ASPCA line is also used by Canadian pet owners. A consultation fee may apply to both. In Canada, your nearest 24-hour emergency vet clinic is the best first call; elsewhere, use local emergency veterinary directories.
How we calculate results: This tool uses commonly referenced veterinary toxicity thresholds and food safety guidelines. Actual toxicity can vary based on your pet's size, health status, and exact substance consumed. These results are estimates only and do not replace a veterinary assessment.