Updated at: 27-12-2021 - By: petexpert

Walnuts are actually stone fruit. Crack open their tough skins, which are wrinkled, to get to the wrinkled but edible nuts inside. For people, walnuts provide a wealth of nutritional benefits , as they are an excellent source of healthy proteins, fats, fiber as well as a variety of minerals and vitamins. Consuming walnuts can reduce cholesterol, heart and neurological issues, boost bone health, and deal with other health issues like epilepsy and gallstones. However, are walnuts for dogs healthy? Are walnuts poisonous for dogs?

Certain nuts, like cashew nuts, can be used for dogs, even in small amounts. However, others, like macadamia nuts, shouldn’t be eaten by dogs due to their toxic nature. What is the place that walnuts are in this range? Do dogs and walnuts are a great match? Do walnuts pose a risk to dogs to consume?

The quick answer is that the majority of new walnuts (like the English variety) aren’t harmful in small quantities, however the black walnuts and the moldy ones are extremely toxic. Additionally, the bigger size of walnuts , and improper preparation can be a risk for your pet. Have you ever worried that your dog had eaten walnuts? Let’s look at the reasons why small quantities of English walnuts are okay but we would recommend not eating them at all.


Walnuts and Dogs

As we’ve mentioned before that walnuts are often touted as a healthy food choice for humans, however it doesn’t mean they aren’t as good for dogs. A number of articles and websites claim that high-fat food is detrimental to dogs, as they have been able to adapt to a diet that contains an abundance of carbohydrates. However, recent research has revealed that proteins and fats are the main components of a dog’s optimal diet, with carbohydrates occupying only the smallest percent. Therefore, although dogs shouldn’t consume a lot in fats, it’s true that having a healthy quantity that includes fats and proteins in the diet doesn’t mean they’re unhealthy.

However, treats from humans like walnuts aren’t a nutritious addition to your dog’s diet for a long time. The high fat and calories can cause weight gain and pancreatic issues for your dog , especially if they are sensitive to stomach or are susceptible to the disease.

When are Walnuts Bad For Dogs?

Most important to keep in mind is that moldy and black walnuts can be harmful to your pet. However, even the ones that aren’t poisonous, they are small and hard. It is therefore easy to cause internal obstructions. Let’s look at the times that walnuts can be dangerous for our pets.

Are Walnuts Poisonous To Dogs?

If you’re wondering, “Are walnuts toxic to dogs?” The answer is yes in certain cases, walnuts are poisonous to dogs. It is essential to determine the kind of walnuts that you are feeding your pet. The two most popular types of walnut are the black along with the English (Persian) walnut. The black walnut is a bit more robust shell. This is the reason this English walnut was picked for commercial production in a larger scale. Although English walnuts aren’t toxic to dogs, studies have found that black walnuts can be poisonous to dogs.

Furthermore, walnuts are prone to mold due to their high content of water. Another risk for dog owners is that of moldy walnuts that contain mycotoxins that cause tremors. Mycotoxins that cause tremors are produced by fungi and could be fatal for dogs if they are consumed. They are a form of mycotoxin that can cause neurological and muscular manifestations in dog. Therefore, consuming moldy walnuts may cause harm to dogs.

Severe symptoms in dogs include vomiting, seizures, and tremors. What should you do if you observe these signs, or if you know your pet has eaten rotten walnuts? Go to the section of what to do if your dog has eaten black or moldy walnuts.


Are black walnuts bad for dogs?

Black walnuts are among the most commonly used walnuts. They contain the chemical juglone (An allelopathic aromatic substance that can be that is found in leaves and husks, roots, and the bark of plant species belonging to the Juglandaceae family). Juglone is poisonous ingredient which can trigger seizures and convulsions for dogs. This is why black walnuts are poisonous to dogs.

If your dog eats walnuts with a black color, the symptoms to watch out for are tremors, seizures, vomiting, and nausea.

‍My dog ate walnuts. What should I do?

If your dog ate some walnuts, this shouldn’t cause any worry. But, you should consult your vet in the event that you suspect that your dog ate walnuts that are black and has symptoms mentioned above, such as seizures and vomiting.

Should I Give My Dog Walnuts?

If you’re still pondering, “Are walnuts bad for dogs?” There are some things to take into consideration.

Since the fresh English walnuts have been proven to be healthy for canines even in small amounts, you could believe that it is okay to give English walnuts to your pet. However, it’s not worthwhile. There are plenty of alternatives that are safer to introduce new fats to your pet’s diet. It’s not worth the health benefits walnuts can bring to your dog.

It is not recommended that your dog eat walnuts that are black or moldy as they can cause your dog to get sick and require urgent treatment. There are many other food items your dog can consume when you’re searching for something to give your dog to eat for snacks.


How to Prepare Walnuts for Dogs

If you decide to feed your dog walnuts, make sure they are fresh English variety and not be contaminated by any signs of mold. If you have walnuts that are still inside their containers, don’t eat them in their shells. Crack them open , and check there aren’t any pieces of shell inside the walnut. Don’t feed whole walnuts by feeding their large shells or sharp pieces of cracked open shells. Both can be choking hazards, and may cause harm to the digestive tract of your dog.

Last but not least, you should offer English walnuts and walnuts to dogs in plain form, without sugar, salt or other seasonings.


There is no benefit in feeding your dog walnuts and they carry many risks. It is best not to give your dog walnuts along with other nuts.

Always remember, if you have any concerns regarding your dog’s diet or have questions about the introduction of an unfamiliar food, you should consult your vet.

Are you interested in learning more about the diet of your dog? Start by reading this article about dogs and cranberries. And find out why garlic and ham pose a threat to your dog’s best friend.

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