Can Dogs Eat Apple Cores? Toxic Seeds?



Can dogs eat apple cores? Not really. Apple cores can be a choking hazard to dogs. The core contains the seeds which contain cyanide. If cyanide is consumed in large enough quantities, this can be poisonous to dogs.
Giving your dog the skin and flesh, however, are perfectly healthy and a tasty treat for dogs. Apple has many nutritional benefits, including containing antioxidants, which are thought to help prevent cancer and diabetes, as well as helping with weight loss and heart health.


Quick Apple Questions: 

What should I do if my dog ate an apple core?
It depends on the amount. If it was only one core is unlikely to harm your dog. It is thought to take a considerable amount of seeds to cause toxicity. 
If your dog is behaving strangely or is experiencing vomiting and diarrhea, contact your veterinarian for advice.


Can an apple core kill a dog?
One core is unlikely to cause death. The amount of toxin in the seeds is so minimal. It would take a considerable amount of seeds to cause harm in most dogs. 
The main risk would be from choking as dogs do not chew their food as we do.


Can dogs eat apples skin?
Yes, the majority of the time the skin is perfectly safe to eat and is even beneficial. It can occasionally cause a bit of gastric upset (loose stools or vomiting) if consumed in a large amount.


How much apple can I give my dog?
It varies from dog to dog, spending on weight, size, breed, and activity level. We would recommend starting with just a slice to see if your dog enjoys it. If this has no adverse effect on your dogs' stomach, you can increase from there.
Remember to introduce new foods slowly; any drastic change in diet can cause vomiting and diarrhea. 
Treats and complimentary dog food should only make up 10% of your dogs' diet. So make sure not to overfeed your dog, even with healthy fruits and vegetables. Excess food can lead to weight gain and weight-related health issues as well as excess sugar in fruit, causing dental and behavioral issues.



Busy? Get Your Hands Paws On The Answers Quickly…


Benefits Of Apples



'An apple a day keeps the doctor away.'  

Cheap and Easy To Find

Apples are affordable and easy to buy in the grocery store or at a farmers market. If you are looking for a cheap treat for your dog, apples are a great option.
They can be dehydrated, frozen, pureed, made into apple sauce, baked into biscuits, and added to dog food.


Promote Weight Loss

Apples are a low-calorie snack that can be used as a healthy training treat. As well as being healthy, studies have also shown that apples may help regulate gut bacteria, which can help in reducing obesity (link).


Help Regulate Diabetes

Apples are relatively low in the glycemic index despite containing carbohydrates. 
This is due to the amount of fiber. The fiber helps to balance out the digestion of carbohydrates and doesn't cause the blood sugar to spike so rapidly.


May Prevent Cancer

Apples contain the antioxidant polyphenols, which are thought to have cancer-preventing properties (link) (link).


Improve Digestion

The fiber content in apples is excellent for digestion. Fiber will help keep your dog regular and keep the gastrointestinal system healthy. This will also help prevent constipation and help with preventing diseases such as IBS and colitis.


Risk Of Apples



Most dogs do limited chewing and just swallow their food. Due to the shape and size of apples, they can cause a blockage. We recommend cutting the apple into bite-sized chunks to limit the risk of choking. 
It is also best not to feed your dog the core or any seeds, as this could also be a choking risk.


Cyanide Toxicity 

The seeds of the apple contain a small amount of cyanide. If consumed in a large quantity, they can be dangerous to dogs. If your dog has only eaten 1 apple, including seeds, they should be fine.
It is thought to be rare that a dog would get cyanide poisoning as they would need to chew to release the toxin in the seeds. Due to the size of the seeds, the majority of the time, they are swallowed. 
Symptoms Of Cyanide Poisoning In Dogs
According to the ASPCA, symptoms include:
  • Dilated pupils
  • Difficulty breathing
  • Bright red gum color
  • Shock 
  • Death


Gastric Upset

All new foods can cause gastric upset, including vomiting and diarrhea. Introduce new foods slowly and in small portions to limit the risk of causing this. 
An apple also contains around 5g fiber. This can be great for improving digestion, but if your dog has a sensitive stomach or is not used to this, it can cause diarrhea. 


Added Ingredients

If you are feeding your dog apple in the form of applesauce, apple pie, apple crumble, apple salad, or in any other recipe, the added ingredients can be toxic for dogs. 
We recommend making dog-safe treats rather than using human ones.
If you are going to be feeding your dog premade foods, check the ingredients for common toxins (xylitol, grapes, raisins, some nuts, onion, garlic), salt, and sugar levels.


Fermented or Rotten 

Fermented or moldy apples can pose a risk of alcohol toxicity. Symptoms are similar to those in humans, including lethargy, stumbling, inability to stand, vomiting, etc (link)


Is Apple Sauce Good For Dogs?


It depends on the ingredients. Most store-bought apple sauces contain unhealthy or unsafe ingredients, as well as high amounts of sugar.
If you are looking to buy apple sauce for your dog, make sure to avoid varieties with excess sugar, xylitol, and nutmeg. All of these can be dangerous to dogs.
We prefer to make our own. Our favorite recipe is this one inspired by Sugar The Golden Retriever.
  • 4 apples
  • 2 tbsp honey
  • 2/3 cup water
1. Slice the apples.
2. Place sliced apples in a large pan on low heat.
3. Add honey and water.
4. Simmer for 3-4 hrs or until mushy.
5. If you prefer a smoother applesauce, use a blender to puree.


Homemade Apple Treats


Applesauce Treats, inspired by Must Love Home

  • 4 cups oat flour, more as needed
  • 2/3 cup applesauce
  • 1/2 cup pure peanut butter
  • 2 large eggs
1. Preheat the oven to 350 degrees F (176 degrees C). Line a baking sheet with parchment paper.
2. Combine all the ingredients in a large bowl. 
3. Mix thoroughly. If the dough is sticky, add a little more flour until you can handle it without it sticking to your hands.
4. Transfer dough to a flat surface and roll out to about 1/4-inch thick. 
5. Cut into your desired treat size.
6. Transfer onto the baking sheet.
7. Bake 20-25 minutes until the cookies are dry and starting to darken at the edges.
8. Allow to cool before serving.


Oatmeal and Cinnamon Treats, inspired by For The Love Of Cooking

  • 2 1/2 cups oats
  • 1 cup cinnamon apple sauce
  • 2 eggs beaten
1. Preheat the oven to 350 degrees F (176 degrees C). Line a deep baking sheet with parchment paper.
2. Place two cups of the quick oats into a blender and pulse to flour. 
3. Add into a mixing bowl.
4. Add the remaining ingredients and mix well. It will be very wet.
5. Use a tablespoon to scoop the dough into cookies on the baking tray. 
6. Bake for 25-30 minutes, or until golden and crips.
7. Allow to cool before serving.


Cinnamon and Apple Treats, inspired by The Kitchen Magpie

  • 3/4 cup applesauce
  • 1 egg yolk only save the white for later
  • 2 tbsp honey
  • 1 tsp cinnamon
  • 2 cups whole wheat flour + extra for rolling
For the topping:
  • 1 egg white
  • 1/4 tsp cinnamon
1. Preheat the oven to 350 degrees F (176 degrees C). Line a baking sheet with parchment paper.
2. Mix the applesauce, egg yolk, honey, and cinnamon.
3. Add in the flour and mix until well combined. The dough should be slightly sticky.
4. Flour the work surface and roll the dough to 1/8-inch thick.
5. Cut into treat sized pieces and place them on the baking sheet. 
6. Mix the egg white and cinnamon and brush onto the top of each treat.
7. Bake for 15-20 minutes, or until golden and crisp.
8. Allow to cool before serving.


Oaty Carrot and Apple Dog Biscuits, inspired by Reluctant Entertainer

  • 2 1/2 cup whole wheat flour + extra for rolling
  • 1/2 cup oats
  • 1 apple, cored and grated 
  • 1/2 cup carrots, peeled and grated
  • 1 egg, beaten
  • 1/3 cup coconut oil
  • 1/4-1/2 cup water, note: the apples add moisture, so only add extra water if necessary
1. Preheat the oven to 350 degrees F (176 degrees C). Line a baking sheet with parchment paper.
2. In one bowl, mix the flour and oats. 
3. In a separate bowl, beat the egg and mix in the oil, water, and grated apples and carrots. Add wet ingredients to dry ingredients bowl and mix thoroughly.
4. Transfer to a floured surface and roll out. 
5. Cut into your desired treat size. 
6. Bake for 40-45 minutes, or until apple juices are soaked and biscuits are firm.
7. Allow to cool before serving.


Oaty Apple Treats, inspired by Puppy Leaks

  • 1 cup oats
  • 1/2 cup whole wheat flour + extra for rolling
  • 1/4 cup pure peanut butter
  • 1 egg
  • 2 apples
1. Preheat your oven to 300 degrees F (148 degrees C).
2. Peel, core, and grate the apples.
3. Mix all the ingredients in a bowl.
4. Roll out your dough on to a floured surface to 1/2-inch thick.
5. Cut into your desired treat size.
6. Bake for 15-20 minutes, or until crisp.
7. Allow to cool before serving.


What Fruit Can and Can't Dogs Eat? What Fruit Can Dogs Eat Safely? What Fruits Are Dog Safe?


Apricots - Yes, with precaution and preparation. Apricots themselves are suitable for dogs and full of nutrition. However, the seeds and other parts of the apricot plant can be harmful. Apricot plants and their seeds contain traces of cyanide. When digested by dogs, cyanide prevents the uptake of oxygen by the red blood cells, making it difficult for your dogs to breathe and ultimately can lead to death. Check out our article Can Dogs Eat Apricots for more information. 
Bananas - Yes, bananas are an excellent low-calorie treat. They are high in potassium, as well as other vitamins. They also work well to bind ingredients together in dog treats. Only feed bananas in little amounts as they do contain a considerable amount of sugar. 
Blueberry - Yes, blueberries contain antioxidants, along with essential vitamins and minerals. This makes them a great snack for dogs, along with a variety of health benefits.
Cherries - Not really, the outside of the cherry is okay for dogs. It contains vitamins A and C as well as fiber and antioxidants. However, it is still not recommended for dogs to eat as there may be traces of cyanide. Cyanide is a chemical compound that is highly toxic and has serious consequences when consumed by dogs. The pips and stem of cherries are what contain the highly poisonous chemical. Check out our article Can Dogs Eat Cherries for more information. 
Figs - Yes, dogs can eat figs. They're a highly nutritious fruit, full of flavor and extra juicy! Check out our article Can Dogs Eat Figs for more information. 
Grapes - No, grapes are toxic to dogs. Little is known about why they are so poisonous and the amount that is toxic. One grape is enough to kill a dog of any size. Grapes can cause kidney failure. 
Guava - Yes, dogs can eat guava! As with all 'human' foods, dogs should be given guava in moderation. Guava is highly nutritious and provides dogs with beneficial vitamins and minerals. However, guava is also high in carbohydrates and sugars. Therefore it should only be given as a small treat. Check out our article Can Dogs Eat Guava for more information. 
Lemons - No, due to the citric acid and bitter flavor, lemons are not recommended for dogs. Lemons contain psoralen compounds, and aromatic oils are toxic and can cause a gastric upset (link). 
Oranges - Maybe, in small amounts. Oranges are not poisonous to dogs, but they do contain a considerable amount of sugar, which can cause vomiting and diarrhea if consumed in high quantities. Your dog also may not like the acidic taste.
Papaya - Yes, but make sure you remove the pips and peel. When given to your dog in moderation, papaya offers a variety of nutritional benefits, and the enzymes are excellent for promoting a healthy gut in dogs and humans. Papaya is incredibly high in fiber along with other vitamins and minerals such as; magnesium, potassium, and vitamin C. Check out our article Can Dogs Eat Papaya for more information. 
Peach - Yes, the fruit is safe to eat as a treat. Peaches contain fiber and a variety of vitamins. Make sure to remove the pit as this also contains cyanide and can cause choking. 
Pear - Yes. In moderation, pears are a healthy snack. They contain fiber and a variety of vitamins. Like apples, it is recommended to cut them into bite-sized chunks and avoid feeding them the seeds as these contain cyanide which is toxic in large quantities. 
Pineapple - Yes, this sweet fruit is safe to eat. It contains a variety of vitamins and minerals, which can be beneficial for your dogs' health. It is recommended to only feed pineapple as a treat as it is relatively high in sugar, which can impact your dogs' digestive system.
Plums - Yes, but with extra precaution! Plums are an excellent source of nutrition for dogs as they are low in calories but contain high levels of fiber, vitamins A, C, K, and potassium. The stone can be toxic for dogs, as well as causing choking. Check out our article Can Dogs Eat Plums for more information. 
Strawberries - Yes, these are safe for dogs in moderation. They contain healthy vitamins, antioxidants, and fiber. They do contain sugar, so reserve them as an occasional treat as excess sugar can cause stomach upset.
Watermelon - Yes. It can be a healthy, hydrating, and refreshing snack for all dog breeds in moderation. There are many ways to feed this delicious treat to your dogs, from fresh, freezing, to dehydrating. Make sure to remove the rind and any seeds. Check out our article Can Dogs Eat Watermelon for more information. 




Are apple seeds poisonous to humans?
Cyanide is also toxic to humans when consumed in a high enough quantity. In small amounts, apple seeds should be safe for humans.


Can dogs eat pear cores?
Not really, they can pose a choking risk. The seeds also contain cyanide which, when consumed in high quantities are toxic.


Can apples upset a dog's stomach?
Yes, they can. They contain both fiber and sugars, which can cause gastric upset. All new foods can also cause vomiting and diarrhea when introduced suddenly. Introduce apple slowly, starting with a small bite-sized chunk and increase from there.


Is peanut butter good for dogs?
Yes, it is safe for dogs in moderation. Make sure it is 100% pure and does not contain added ingredients like excess sugar or salt. Some varieties also contain sweeteners, such as xylitol, which is toxic to dogs.



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Disclaimer: Each dog is different, and every circumstance is different. All efforts have been made to provide accurate information. However, it is not provided by a qualified Veterinarian, Veterinarian Surgeon, or Behaviorist. The information provided is purely educational. The information should not be used as an alternative or substitute for medical care. If you have any health or medical concerns, contact a qualified Veterinary Surgeon or Veterinarian immediately.


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