September 20, 2020 5 min read 0 Comments
Ingestion of grapes or raisins are extremely harmful to your dog. These fruits are toxic to canines and can lead to kidney failure and can even be fatal, if not treated immediately. If you know your dog has eaten any of these fruits or is showing any symptoms, immediately contact your veterinarian.
There is no such thing as a dog-safe grape or raisin. All varieties of grapes ranging from commercial seedless grapes to homegrown or organic grapes have proven to be toxic to dogs.¹ All varieties of dried grapes, otherwise known as raisins, sultanas or Zante currants, are also harmful for your dog to consume.
Currently, there are not clear findings as to what the toxic dose is for grape or raisin ingestion.
The specific number of ingested grapes or raisins that leads to toxicity is still unknown. But even small doses can be fatally toxic to dogs.² Additional factors such as size and the amount eaten also play a role in how toxic the substance is to your dog.³
Studies have found that the kidneys can enter the renal failure stage after a dog consumes just 2.8 g/kg (0.1 oz/kg) of raisins. For grapes, the kidneys can enter this stage with dosages as small as 19.6 g/kg (0.7 oz/kg) are consumed. However, clear relationships between dosage and toxicity are still unclear.⁴ Making it important to take caution if your dog has consumed any amount of these fruits.
What makes these foods toxic to dogs is still unknown.
It is suspected that dogs are unable to break down certain parts of grapes and raisins.¹ Another possible cause may be from mycotoxin, a poison that coats grapes and raisins. Studies have shown that kidney cells in dogs are very sensitive to mycotoxin.³
Because the exact reason why these fruits are toxic to dogs is still unknown, it is best to treat any sign of ingestion or toxicity very seriously.
If you are positive that your dog has eaten any of these fruits and you are unable to seek immediate care, you should induce vomiting to prevent toxins from being absorbed. Contact your vet or poison control to seek assistance when inducing vomiting.⁵
Do not induce vomiting if your dog:
You should always first contact your veterinarian or poison control hotline if you suspect your dog has eaten any of these fruits. It is always best to follow the advice of your veterinarian.
Be prepared for your vet to ask questions such as breed, age, weight, as estimate of how many of the fruits your dog has eaten, and if your dog has any underlying health conditions.
Symptoms typically develop within 12-24 hours. The first symptom will likely be vomiting. Other initial signs can be:
Acute kidney failure can begin within 24-48 hours. More severe symptoms and signs of possible kidney damage or failure are:
If you suspect your dog has ingested any of these fruits, it is best to call your veterinarian immediately. Because ingestion of these fruits can lead to kidney failure and possibly death, it is advised to have your pet looked at by a professional as soon as possible.² ⁵
The earlier ingestion of these fruits is diagnosed, the better.
The prognosis is dependent on the amount of fruit ingested, size of pet and how quickly treatment began after eating any of these fruits.
If ingestion has been identified within two hours of eating any of these fruits, the success rate of removing the fruits and flushing the stomach of any remaining toxins is high.
When kidney damage and possible kidney failure is present, the chances of recovery decline rapidly. Because the kidneys do not have the ability to repair themselves, it is likely that the result will be fatal if there are signs of advanced kidney damage.⁵
Grapes and raisins are toxic to dogs. The best practice is to prevent your dog from having the chance to ingest grapes or raisins in any situation. If you suspect your dog may have eaten any amount of these fruits, contact your veterinarian immediately. Do not wait until your dog shows first signs of a poisoning. The success rate of treatment increases the quicker your dog is being helped.
How do you protect your dog from toxic substances in your apartment or house? Has your dog ever been poisoned? If yes, how did you deal with the situation? Please comment below. We’d love to hear your story!
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