Blue Cheese
Verdict
Never — the mold produces a dangerous toxin.
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
- 2. ASPCA Animal Poison Control: (888) 426-4435
- 3. Pet Poison Helpline: (855) 764-7661 (consultation fee applies)
A consultation fee may apply for poison control hotlines.
Verdict
Blue cheeses (Roquefort, Stilton, Gorgonzola, etc.) are made using Penicillium mold cultures that produce roquefortine C, a tremorgenic mycotoxin. In cats, this compound causes serious neurological effects including muscle tremors and seizures. Even a moderate portion can cause severe illness. Cats' smaller body size makes them more susceptible per ounce consumed.
Symptoms to watch for
- • vomiting
- • diarrhea
- • high temperature
- • muscle tremors
- • seizures
What to do
If your cat ate blue cheese, contact your vet promptly. Other cheeses are less dangerous but still high in fat; plain mild cheeses in small amounts are usually OK, but avoid blue-veined varieties entirely.
📞 US ASPCA Animal Poison Control: (888) 426-4435
Related foods
Milk
CautionNot poisonous — but most adult cats are lactose intolerant.
DairyCheese
CautionSmall amounts OK for some cats — high in fat and lactose.
DairyYogurt
CautionSmall amounts of plain yogurt may be OK — choose carefully.
DairyIce Cream
CautionAvoid — sugar, dairy, and potential xylitol risk.
Dairy