Are Grapes Poisonous To Dogs Or Cats?

Written by Jennifer Gaeng
Published: February 1, 2022
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Are Grapes Dangerous - Dark Blue Grapes

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Grapes and raisins are fantastic for people, but did you know that even tiny amounts of them can be poisonous to dogs and cats? To discover more about pet grape and raisin toxicity and what to do if you suspect your pet has eaten this harmful snack, continue reading.

Are Grapes Poisonous To Dogs Or Cats?

Are Grapes Dangerous - Red Grapes
Grapes are dangerous for cats and dogs.

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As it turns out, even one grape or raisin can be lethal to your dog, unfortunately. Specifically, if a dog eats a single grape, it could cause abrupt kidney failure. Even a few grapes or raisins might cause serious complications in your dog or cat. For example, A 20-pound dog can eat three ounces of grapes or raisins and get renal failure.

Cats have more room when it comes to grape tolerance but ingesting several grapes can be toxic to cats. Grapes are one of the most harmful foods for dogs, and they are worse for cats than chocolate! Bottom line, it is best to keep grapes and raisins away from your dog or cat.

Why Are Grapes And Raisins Toxic To Pets?

Although it’s not down to an exact science yet, researchers believe that tannins, which are found in many fruits, are responsible for the fruit’s deadly effect since the animal cannot break them down. In some cases, even small doses of a toxic substance can cause serious and even life-threatening sickness in dogs. Coincidentally, other dogs are safe from the hazardous effects of eating grapes and raisins. Because of this, grapes or raisin products should never be given to your pet.

What Could Happen If My Dog Or Cat Does Eat Grapes Or Raisins?

Grape consumption can be dangerous for your pet if left untreated. If your dog or cat has eaten grapes or raisins, early symptoms will include nausea and vomiting. Left untreated, this progresses rapidly to acute renal failure, in which they will begin to drink and urinate excessively. Due to their distress, pets lose their appetite and become sedentary. This can lead to renal failure and the complete inability to urinate. Even aggressively treated pets can develop renal failure if seriously affected.

Toxic Ingestion Symptoms:

  • Appetite loss
  • Apathy, sluggishness
  • Vomiting and diarrhea within hours
  • Tummy ache (tender when touched)
  • Dehydration, which includes panting; dry nose and mouth; pale gums. To check for dehydration, gently pull up on the skin behind your dog’s neck. It should bounce right back.
  • Increased thirst, decreased urine production, or complete stoppage
  • Nephrosis (kidney failure), which can be fatal

Food poisoning in pets raises the risk of major health consequences after 24 hours. Renal failure is likely when the animal reaches this stage. Acute renal failure can be reversed if treated quickly.

What Should I Do If My Dog Or Cat Has Eaten Grapes Or Raisins?

Are Grapes Dangerous - Red Grapes
Getting your pet medical attention is the first thing to do if it eats grapes.


Getting your dog or cat’s medical attention is critical if they ate raisins or grapes. Contact your veterinarian immediately, who may suggest that you help the animal vomit. Unless your veterinarian specifically tells you to, do not induce vomiting in your pet! It can exacerbate the symptoms if done incorrectly or unnecessarily.

Intravenous fluids should be administered for at least 48 hours after your pet arrives at the vet’s office. To keep track of how they’re doing, your veterinarian will take blood and urine samples from them. After 48 hours, if your pet’s kidney levels are normal, he or she can usually be returned to you. Severe kidney damage necessitates an additional stay in a hospital.

Your veterinarian or the ASPCA’s Animal Poison Control Center should be contacted if your dog or cat has eaten grapes (888-426-4435).

How Do I Prevent Grape And Raisin Poisoning?

Keep grapes and raisins out of your pet’s reach or out of your house completely to avoid grape or raisin poisoning. You should store them in a refrigerator or other closed container if you are at home. If you suspect your pet has eaten a grape, raisin cookie, or any other food containing these ingredients, contact your veterinarian immediately.

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About the Author

A substantial part of my life has been spent as a writer and artist, with great respect to observing nature with an analytical and metaphysical eye. Upon close investigation, the natural world exposes truths far beyond the obvious. For me, the source of all that we are is embodied in our planet; and the process of writing and creating art around this topic is an attempt to communicate its wonders.

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