Dog Food & DietDog Health & Care

Harmful Fruits Fed to Dogs—Some of the Most Common Fruits Fed to Dogs Are the Most Deadly

Harmful fruits fed to dogs can be the very same ones that we safely eat ourselves.  That old saying, “What is safe for me is safe for my dog” is obviously not true. A lot of dog owners share their favorite fruits with their dogs, but we should be careful what type of fruit we choose to share. We tend to view fruit as tasty, delicious, healthy and good to eat!  Smaller pets like hamsters, guinea pigs, and rabbits love vegetables and fruits. Therefore, we automatically view fruits as healthy for dogs and a lot of animals.

There are certain fruits and vegetables that dogs find difficult to digest and are labeled as toxic. Some fruits are considered vegetables, while some vegetables are considered fruits.  In this article, we have taken a good look at what fruits are not good for our dogs and which vegetables are not good for dogs, such as avocados. A little extra care and research can save our faithful companion from toxic fruit, preventing pain and heartbreak. 

Note: ASPCA Animal Poison Control Center Phone Number: (888) 426-4435.0




List of harmful fruits fed to dogs



The avocado is a healthy fruit favorite we often see on the table. The main question is… is this fruit okay for dogs? Is it one of the harmful fruits fed to dogs?  The answer used to be NO. Today it is YES, at least according to some of the latest studies. The problem child is something known as persin. Persin is in the avocado’s seed, leaves, and fruits, something you should remain aware of. If dogs eat the large seed, it is easy for them to choke as the pit can lodge in their esophagus. 

While persin (a chemical found throughout the avocado) is a deadly poisonous for many different animals, dogs aren’t affected. However, the ASPCA does advise against letting Fido eat an entire avocado as it might result in an upset stomach, or even worse, the pit might block up their gastrointestinal tract. (



Citrus fruits consist clementines, grapefruits, key limes, lemons, limes, mandarins, oranges, tangerines, hybrids, and many varieties.

“There is not really a limit to how much vitamin C a pet can have because it is water soluble and excess levels are urinated out and don’t accumulate in the body,” says Stephanie Liff, DVM and partner at Brooklyn Cares Veterinary Hospital in New York. “Oranges can affect blood values in diabetic dogs, more due to the vitamin C than the sugar levels, and would be best avoided in these patients.” (PetMD)

The stems, leaves, peels, fruit and seeds of citrus plants contain varying amounts of citric acid, essential oils that can cause irritation and possibly even central nervous system depression if ingested in significant amounts. Small doses, such as eating the fruit, are not likely to present problems beyond minor stomach upset.

Chocolate coffee & caffeine

Most of these products have common ingredients known as methylxanthines, which are mostly found in cacao seeds. It is definitely one of the harmful fruits fed to dogs.  If your dog somehow ingests it, then methylxanthines will create vomiting & diarrhea, excessive thirst, panting, and urination. Sometimes many dogs are seen suffering from tremors, seizures, hyperactivity and abnormal heart rhythm. You need to keep in mind that dark chocolate is too much dangerous compared with the milk chocolates.

If you find out that your dog has eaten chocolates, then it’s better to take him right to the vet or emergency clinic before it’s too late. The vet will be able to prescribe a perfect treatment like a blood transfusion or oxygen therapy. Knowing about dogs takes a lot of love and research!



Believe it or not, eggs have a good side and a bad side for dogs. The good side is that eggs are an excellent source of digestible protein, riboflavin, and selenium. If your dog is prone to digestive upset, eggs can give them a protein boost. And … adding eggs to your dog’s food is considered a treat for your dog. However, make sure you boil the eggs as raw egg whites cause biotin deficiency. Avidin, an enzyme that reduces the dog’s absorption of the B vitamin, biotin.When that occurs, your pet will begin to suffer from coat and skin problems. It will also develop neurological abnormalities.  

Signs of skin problems due to raw eggs. Not only dogs but birds and rabbits show similar symptoms in their coat and feathers.

  1. A very dull or thin coat
  2. Dry skin
  3. Excessive shedding of the dog’s coat
  4. Intensive biting at the skin which leads to bald areas
  5. Intensive scratching
  6. Skin that is flaky

Note: Small dogs can eat one or two small eggs a week. Each egg has 54 calories per egg. Large dogs can have medium to large eggs, two or three times per week.


Grapes and raisins

Grapes and raisins (dried grapes) are extremely toxic to dogs, even though the exact substance that causes the toxicity is unknown. When we feed them to our dogs (any age, breed or gender is affected), they develop sudden, or acute, kidney injury. This is the sudden development of kidney failure with Urania … a lack of urine production.

The phenomenon was first identified by the Animal Poison Control Center (APCC), run by the American Society for the Prevention of Cruelty to Animals (ASPCA). Approximately 140 cases were seen by the APCC in the one year from April 2003 to April 2004, with 50 dogs developing symptoms and seven deaths. Dogs can consume grapes and raisins very easily but the problem starts when it begins to cause kidney damage.

Symptoms and types of grapes and raisin poisoning

  • Abdominal pain(complete termination of urine)
  • Comas
  • Dehydration
  • Foul breath
  • Lethargy, weakness, unusual quietness
  • Loss of appetite
  • Oliguria
  • Oral ulcers
  • Vomiting and/or diarrhea – often within a few hours of ingestion. Vomit and fecal contents material may contain pieces of grapes or raisin.
  • Seizures
  • Tremors
  • Urania (passing only a small amount of urine)



There are many wild mushrooms which are not only poisonous but also very deadly for dogs. It is considered of the more toxic and harmful fruits fed to dogs. If your dog accidentally eats any toxic mushrooms, then he/she will start to suffer from vomiting, wheezing, diarrhea and some changes in the heartbeat. Some mushrooms are so dangerous that it can cause comas, organ failures, and seizures.


Onions & Garlic

Many dog owners believe that garlic or even onions are good for their pets. However, the Allium plant species contains toxicity. There are plenty of plants in this group … all toxic. 

  • Chives
  • Garlic
  • Leeks
  • Onions
  • Scallions
  • Shallots

If your dog eats just one of these foods, serious problems will result in your dog.  Such health issues are an elevated heart, lethargy, and an increase in respiratory rates. Additionally, the dog’s red blood cells can be damaged. This will result in the cells not being able to carry oxygen. Note: Harmful fruits fed to dogs put a lot of dogs in jeopardy, if not death. Research what you do not know, and then make a list of the good stuff that is not toxic.


Robert William was born in Auckland, New Zealand,  former author of Pets Health Blog.

He has a great experience in blogging for more than three years. Robert is a regular author & member of  Cute Puppies Now and is studying Veterinary Science at Massey University.


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  1. Patricia Sweetman
    January 13, 2018 at 6:06 pm — Reply

    I think that the information you provide. I am a new dog owner and follow your advice assiduously. Thank you. Patricia

  2. Charlene
    January 3, 2018 at 10:42 am — Reply

    Enjoyed the article. Some things I didn’t know.

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