Dog Health

Can Dogs Eat Walnuts? Are They Safe for Dogs?

Wondering if dogs can eat walnuts? Discover whether these nuts are safe for your furry friend and learn about potential risks in our latest blog post!
Author: Veterinary Team
Dial A Vet
Updated
May 25, 2025
|
Published
May 25, 2025
Dog looking curiously at a bowl of walnuts, questioning their safety as a treat for pets.

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As a pet parent, you might be tempted to share your favorite snacks with your furry friend. But when it comes to walnuts, you may wonder: are they safe for dogs? While some human foods are harmless for dogs, others can pose serious health risks. Let’s dive into whether dogs can eat walnuts and what you need to know to keep your pup safe and healthy.

🥜 What Are Walnuts, and Why Do Dogs Like Them?

Walnuts are nutrient-dense tree nuts enjoyed by humans worldwide. They’re rich in healthy fats, protein, vitamins, and minerals, making them a popular snack. But for dogs, these nuts can be a mixed bag. Dogs are naturally curious and may find the smell, texture, or taste of walnuts appealing. Whether they grab one off the ground during a walk or sneak a piece from your snack bowl, it’s important to understand the potential risks involved.

⚠️ Are Walnuts Safe for Dogs to Eat?

Walnuts are not considered toxic to dogs in small amounts, but they are not recommended as a regular treat. Several factors make walnuts a risky choice for your dog:

  • Walnuts are high in fat, which can cause digestive upset or even lead to pancreatitis in dogs.
  • Moldy walnuts may contain mycotoxins, which are highly toxic and can cause seizures or neurological issues.
  • The hard shell of a walnut can be a choking hazard or cause an intestinal blockage if swallowed.

While one small piece of walnut may not harm your dog, the potential risks outweigh any possible benefits. Always err on the side of caution when it comes to your pet’s health.

🤢 Symptoms of Walnut Toxicity in Dogs

If your dog accidentally consumes walnuts, watch for these signs of walnut-related issues:

  • Vomiting or diarrhea
  • Loss of appetite
  • Lethargy or weakness
  • Tremors or seizures (if moldy walnuts were ingested)
  • Abdominal pain or bloating

These symptoms can range from mild to severe, depending on the amount and type of walnut consumed. Moldy walnuts, in particular, can cause serious health problems that require immediate veterinary attention.

🌳 Moldy Walnuts: A Hidden Danger

Moldy walnuts pose one of the greatest risks to dogs. When walnuts fall to the ground and are exposed to moisture, they can develop a type of fungus that produces mycotoxins. These toxins can cause tremorgenic mycotoxicosis, a condition that affects the nervous system.

Symptoms of tremorgenic mycotoxicosis include:

  • Severe muscle tremors
  • Seizures
  • Hyperthermia (elevated body temperature)
  • Agitation or restlessness

If you suspect your dog has ingested moldy walnuts, contact your veterinarian immediately. Prompt treatment is crucial to prevent serious complications.

🍽️ What Should I Do if My Dog Eats Walnuts?

If your dog accidentally eats a walnut, here’s what you should do:

  • Check if the walnut was moldy or had a shell. Moldy walnuts are more dangerous, and the shell can cause blockages.
  • Monitor your dog for symptoms such as vomiting, diarrhea, or lethargy.
  • Contact your veterinarian if you notice any concerning signs or if your dog ate a large quantity of walnuts.
  • Do not attempt to induce vomiting unless instructed by your vet.

Your vet may recommend supportive care, such as fluid therapy or medications, depending on the situation. Early intervention can make a significant difference in your dog’s recovery.

🦴 Safe Alternatives to Walnuts for Dogs

If you’re looking for safe and healthy treats for your dog, consider these alternatives:

  • Carrot sticks
  • Apple slices (without seeds)
  • Blueberries
  • Plain, unsalted peanut butter
  • Commercial dog treats made specifically for canine consumption

These options are not only safe but also provide nutritional benefits that support your dog’s overall health. Always introduce new treats gradually and in moderation to avoid digestive upset.

🐾 Preventing Walnut Ingestion

Prevention is key when it comes to keeping your dog safe from potentially harmful foods like walnuts. Here are some tips to reduce the risk of walnut ingestion:

  • Store walnuts and other nuts in sealed containers out of your dog’s reach.
  • Clean up fallen walnuts in your yard or on walking paths.
  • Supervise your dog closely during outdoor activities, especially in areas where walnut trees are present.
  • Train your dog to follow commands like "leave it" or "drop it" to prevent them from eating unsafe items.

Being proactive can help you avoid a stressful situation and protect your dog’s health.

FAQs

Q: Can dogs eat black walnuts?

A: Black walnuts are especially dangerous for dogs. They are more likely to develop mold and are harder to digest, increasing the risk of toxicity or intestinal blockages.

Q: Are there any nuts that are safe for dogs?

A: Some nuts, like peanuts and cashews, can be safe in small amounts if they are unsalted and plain. However, nuts are high in fat and should only be given occasionally as a treat.

Q: What should I do if my dog ate a walnut shell?

A: Contact your veterinarian. Walnut shells can cause choking or intestinal blockages, which may require medical intervention.

Q: How many walnuts are toxic to dogs?

A: Even a single moldy walnut can cause serious symptoms. The amount of plain walnut needed to cause issues depends on your dog’s size and health, but it’s best to avoid feeding walnuts altogether.

Q: Can dogs eat walnut-flavored treats?

A: Commercial treats with walnut flavoring are generally safe, as they don’t contain actual walnuts. Always check the ingredient list to ensure the product is dog-friendly.

References

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While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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