Blackberries are non-toxic to cats, but they contain seeds, sugar, and fiber that cats do not need. One or two berries is the most that is worth offering, and only rarely.
VCA advises that treats, snacks and people foods together stay within 10% of a cat's daily calories, with the rest from a complete and balanced cat food. No source we checked gives an amount for this specific food, so ask your veterinarian about your own cat.
Wash thoroughly and offer 2-3 fresh, bite-sized berries once or twice a week at most; skip blackberries entirely for cats with diabetes or sensitive stomachs.
The small seeds pass through for most cats, but too many can add to stomach upset. A berry or two at most is a cautious portion.
No. Jam and pie contain added sugar and often other ingredients that are unsuitable for cats.
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
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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.