No, dogs should not eat blue cheese. Blue cheese contains compounds produced by mould that can be harmful to dogs and may cause tremors and neurological symptoms. Important warning: even small amounts can trigger illness in sensitive dogs and veterinary care may be needed.
Last updated:
March 19, 2026
The table below highlights the key nutrients found in this food and how they may impact your dog’s health. Nutritional values can help determine whether a food is beneficial, should be fed in moderation, or is best avoided.
Blue cheese should not be given to dogs because it contains mould cultures that produce substances harmful to them. Dogs are more sensitive to these mould toxins than humans. Even small pieces may cause stomach upset or neurological symptoms. The salt and fat levels in blue cheese can also place stress on a dog’s digestive system, especially in smaller dogs or those with existing health conditions.
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Every dog is different and reactions to foods can vary. If you have concerns about your dog’s diet or health, it is always best to speak with a qualified veterinarian.
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Here are answers to some of common questions that dog owners ask about this food's safety and nutrition
Dogs should not eat blue cheese every day or even occasionally. The mould cultures used to make blue cheese produce compounds that can be toxic to dogs and may cause tremors or neurological symptoms. In addition the high fat and salt content can upset a dog’s stomach. For safety it is best to avoid feeding blue cheese completely and choose dog friendly treats instead.
Dogs should not eat blue cheese at all. Even a small amount may expose them to mould toxins that can affect the nervous system. The exact reaction can vary depending on the amount eaten and the size of the dog. Because the risks outweigh any potential benefit veterinarians recommend avoiding blue cheese entirely and keeping it away from pets.
If your dog eats blue cheese try to determine how much was consumed and contact your veterinarian for advice. Watch for symptoms such as vomiting, restlessness, shaking, or tremors which may appear within a few hours. If these signs develop seek veterinary care immediately. Early treatment helps manage symptoms and reduces the risk of more serious complications.
Puppies should never be given blue cheese. Their smaller body size means even a small amount of mould toxin can cause noticeable symptoms more quickly than in larger adult dogs. Puppies also have developing digestive systems that can be sensitive to fatty or salty foods. If a puppy eats blue cheese by accident watch closely for vomiting, restlessness, or shaking and contact a veterinarian promptly if symptoms appear.
Small dogs are at higher risk if they eat blue cheese because toxins are absorbed relative to body weight. Even a small portion can lead to tremors or digestive upset. The fat and salt content may also cause stomach discomfort or dehydration in smaller breeds. Because of this risk it is safest to keep mould ripened cheeses completely out of reach and avoid offering them as treats.
Senior dogs may be more sensitive to the fat and salt found in blue cheese and may also react more strongly to mould toxins. Older dogs sometimes have reduced liver function which can make it harder for the body to process harmful compounds. This means symptoms may be more severe or last longer. For senior pets it is safest to avoid mould ripened cheeses entirely and stick to dog safe foods.
Blue cheese is not suitable for overweight dogs. It contains high levels of fat and calories which can contribute to weight gain and digestive upset. In addition to these concerns the mould toxins found in blue cheese may cause neurological symptoms in dogs. Dogs that are already overweight may also be at higher risk of pancreatitis when consuming fatty foods. Choosing low calorie dog safe treats is a much better option.
Blue cheese contains moulds from the Penicillium family that produce a compound called roquefortine C. Dogs are particularly sensitive to this substance and it can affect the nervous system. When dogs consume foods containing this mould toxin they may develop tremors or neurological symptoms. The risk increases if a larger amount is eaten. Because of this potential toxicity veterinarians advise that dogs should not be fed blue cheese.
