Can Dogs Eat Blue Cheese

The Short Answer: No — Blue Cheese Is Dangerous for Dogs

Blue cheese is not safe for dogs and should be kept away from them entirely. Unlike most cheeses where the primary concerns are fat and lactose, blue cheese has an additional serious hazard: the Penicillium roqueforti mold used to create its characteristic blue-green veins produces roquefortine C, a mycotoxin that is toxic to dogs. Even small amounts of blue cheese can cause serious neurological symptoms in dogs. Blue cheese is one of the few cheeses that is genuinely dangerous rather than merely inadvisable.

Why Blue Cheese Is Dangerous for Dogs

1. Roquefortine C — Mycotoxin Poisoning

The defining danger of blue cheese for dogs is roquefortine C, a mycotoxin produced by the Penicillium roqueforti mold. This toxin affects the nervous system and can cause:

• Vomiting and diarrhea
• Tremors and muscle twitching
• Seizures
• High fever
• Rapid heart rate
• In severe cases: collapse and death

Symptoms can appear within 30 minutes to a few hours of ingestion. The amount of roquefortine C varies between batches of blue cheese, making it impossible to predict a "safe" amount.

2. Very High Fat — Pancreatitis Risk

Blue cheese is very high in fat, adding pancreatitis risk on top of the mycotoxin concern.

3. Very High Sodium

Blue cheese is one of the saltiest cheeses available, adding sodium toxicity risk.

4. All Blue Cheese Varieties Are Dangerous

This applies to all blue cheese varieties — Roquefort, Gorgonzola, Stilton, Cambozola, and any other mold-ripened blue cheese. None are safe for dogs.

What If My Dog Ate Blue Cheese?

Contact your veterinarian immediately — do not wait for symptoms. Roquefortine C toxicity can develop rapidly. If your dog shows tremors, seizures, or fever after eating blue cheese, this is a veterinary emergency.

Animal Poison Control: ASPCA (888) 426-4435 | Pet Poison Helpline (855) 764-7661

Signs of Roquefortine C Toxicity

• Vomiting and diarrhea
• Muscle tremors or twitching
• Seizures
• High fever
• Rapid heart rate
• Lethargy or collapse

Safe Cheese Alternatives

👉 Himalayan Dog Chew Yaky Churro Cheese Treats — lactose-free, mold-free cheese chews made specifically for dogs. Safe cheese flavor with none of the mycotoxin risk of blue cheese.

👉 NaturVet Digestive Enzymes with Probiotics & Prebiotics for Dogs — supports healthy digestion, especially useful if your dog has eaten something that caused digestive upset.

The Bottom Line

Blue cheese is not safe for dogs. The roquefortine C mycotoxin produced by the mold can cause tremors, seizures, and in severe cases, death. This applies to all blue cheese varieties. If your dog eats blue cheese, contact your veterinarian immediately. Keep all blue cheese completely away from your dog.