- Dr. Liz Moses
- Jun 5
- 7 min read
Updated: 2 days ago
The short answer? No, dogs cannot eat grapes—they are highly toxic and can cause severe and sudden kidney failure in dogs.
Grapes, while a sweet treat for humans, are a toxic nightmare for canines. While experts don’t know the exact cause of grape toxicity in dogs, we do know that if ingested, there is a chance of a dog developing acute kidney injury. The actual amount of a toxic dose is not generally known, as some dogs are more affected than others. It's always best to call and speak with a vet at VEG if your dog eats even one grape.
Here, we’ll discuss the signs to look out for and why you should bring your dog into your nearest VEG ER for Pets if you suspect they’ve eaten, well, a forbidden fruit.
What kinds of grapes are toxic to dogs?
All types of grapes are poisonous and dangerous to dogs. Full stop. That includes:
Red grapes
Green grapes
Purple grapes
Black grapes
White grapes
Cotton candy grapes
Seeded grapes
Seedless grapes
Peeled grapes
Cooked grapes
Raw grapes
Frozen grapes
Grape juice
Grape jelly
Sultanas
Currants
Don’t be fooled by trendy or exotic grapes; they’re all just as toxic to dogs as green, purple, or any flavorful hybrids. It also doesn’t matter if they’re seedless or not; they’re simply all toxic to dogs.
Raisins pose an even greater danger, likely due to their higher concentration of the compound in grapes that is toxic to dogs. This includes sultana raisins and even dried currants. The bottom line is all kinds and forms of grapes can be toxic to dogs, so it’s best to be diligent and avoid them altogether.
Signs of grape toxicity in dogs:
If your dog ate grapes (or even if you suspect they might have), bring your dog to VEG or your nearest emergency veterinarian right away.
Most symptoms begin to appear within the first 24 hours.
Here are some signs to look out for:
Vomiting (usually the first sign of kidney issues)
Loss of appetite (dog not eating)
Excessive drooling
What to do if your dog eats grapes
If your dog eats grapes, don’t wait for symptoms to appear—call or visit your nearest VEG emergency hospital immediately. Early treatment can prevent severe damage to your dog’s kidneys. Let the vet know how many grapes (or raisins) were eaten, your dog’s breed and size, and the approximate time of ingestion.
Timing is absolutely critical when dealing with dogs who have ingested grapes. Vets can often induce vomiting up to 6 hours after ingestion. Vomiting may not entirely remove the toxin, but it can limit the amount of absorption. So, the earlier your dog gets treatment, the better.
After symptoms start, there is likely some degree of kidney failure. Our vets’ goal is to limit the injury and support the kidneys.
Treatment for grape ingestion in dogs
When you bring your dog to VEG for suspected grape ingestion, there are common practices in place to triage and treat your dog.
Be sure to let us know how many grapes (if you know) and how long ago it may have happened.
First, we’ll most likely induce vomiting.
We may give your dog diuresis medication; fluid therapy to dilute the toxin.
Depending on how many grapes were ingested and what symptoms the patient is presenting, your dog may be hospitalized for observation, which will include monitoring kidney values.
How to prevent your dog from eating grapes
The easiest way to prevent your dog from eating grapes is by not having them in your home. If you must have them, here are a few things you can do to keep them away from your pooch:
Make sure everyone in your family knows that grapes of all kinds and forms are toxic to dogs. This goes for visitors too!
Keep grapes and grape products in sealed containers and out of reach of your dog
If you drop a grape or grape product (including stems and skins) on the floor, make sure it is picked up/cleaned up immediately
Keep an eye on your toddler (and the floor around their seat) during snack time
Be aware of hidden grapes and raisins in things like trail mix, baked goods, granola bars, charcuterie boards, jellies/jams, and holiday foods
Use dog-proof trash cans and avoid open compost bins. Secure all trash cans and food waste so your dog can’t access discarded grapes, grape skins, or stems
Always monitor your dog while out and about to make sure they aren’t eating food off the ground
Why are grapes toxic to dogs?
Surprisingly, after decades of research, there is still no definitive answer to the age-old question: Why can’t dogs have grapes? Tartaric acid is suspected to be the cause. But we do know for sure that ingesting grapes spells a bunch of big trouble for dogs, and any pup suspected of eating even one should be brought to the ER ASAP.
Contact your local VEG animal hospital if your dog ate grapes
Just like with water submersion, you might think your dog is okay after eating grapes, but they can show fatal symptoms much later. Contact VEG right away if your dog has eaten grapes. We have locations all over the country with emergency vets who are available 24/7 to help you and your pet. When you come to VEG, our emergency-trained team will triage your pet within seconds.
Can Dogs Eat Grapes? FAQs
Let's review the frequently asked questions about dogs and grape toxicity
Just like with water submersion, you might think your dog is okay after eating grapes, but they can show fatal symptoms much later. Contact VEG right away if your dog has eaten grapes. We have locations all over the country with emergency vets who are available 24/7 to help you and your pet. When you come to VEG, our emergency-trained team will triage your pet within seconds.
Can dogs eat raisins?
No, dogs should never eat raisins. Like grapes, raisins are highly toxic to dogs and can lead to serious complications, including kidney failure. If your dog has eaten a raisin, call your local VEG ER immediately.
Can one grape kill a dog?
Yes, it’s possible that as few as one grape can mean serious danger for your dog. Grape toxicity in dogs is unpredictable, and there is no known safe amount of grapes for dogs. The severity of your dog’s reaction may depend on a number of factors, including:
Your dog’s size (smaller dogs are at greater risk)
How sensitive your dog is to the toxins
The amount ingested
How quickly they can receive treatment
Because of this, any ingestion of grapes or grape products should be treated as a potentially life-threatening emergency, and you should seek medical care for your dog immediately.
What happens if a dog eats grapes?
If a dog eats grapes or raisins, it can cause sudden poisoning that may lead to acute kidney failure. As few as one grape or raisin can cause serious damage to a dog’s kidneys, disrupting their ability to filter waste and leading to a buildup of toxins in the bloodstream. When this occurs, it can be severe and life-threatening.
Within 6–12 hours of ingesting grapes or grape products, your dog may have the following symptoms:
Within 12–24 hours, your dog may experience:
Within 24–72 hours, your dog may exhibit these symptoms:
Decreased or no urination
Signs of kidney failure
Weakness or collapse
Early intervention is key in preventing severe illness in dogs after ingesting grapes, so call or visit your local VEG ER immediately if this occurs.
Are grape leaves toxic to dogs?
Grape leaves are not known to be toxic to dogs in the same way grapes and raisins are, but there are still risks, such as:
Possible grape contamination from residue or sap left behind or from small, unripened grapes that may be attached
Unknown toxicity factors
Digestive issues caused by tough and fibrous leaves
Pesticides and chemical treatments that may be harmful to dogs
Even if you’re certain your dog only ate grape leaves, call your local VEG immediately.
Is grape seed extract safe for dogs?
Since the dangerous toxin in grapes appears to be associated with the flesh of the fruit, grape seed extract is generally considered safer for dogs than grapes or raisins, but it is still not recommended for dogs without veterinary guidance or in a trusted, pet-safe formulation.
When in doubt, always check with your vet before giving your dog any grape-derived product.
Are grape vines toxic to dogs?
Like grape leaves and grape seed extract, grape vines are considered to be safer for consumption by dogs than grapes or raisins, as the toxin is associated with the fruit itself. That said, grape vines should still be treated as a potential risk due to:
Contamination from possible grape residue or tiny, unripe grapes
Unknown toxicity factors
Irritation, choking, or intestinal blockages caused by tough, fibrous vines
Harmful substances like pesticides or chemicals
If your dog has eaten grape vines, reach out to the emergency vets at VEG immediately.
Are grape stems toxic to dogs?
Similar to grape vines, grape stems are generally safer for dogs than grapes or raisins but should still be treated as a potential hazard and kept away from your dog. Grape stems may contain toxic grape residue or small pieces of grapes and may also cause choking, mouth irritation, or gastrointestinal irritation (especially in small dogs), so it’s best to steer clear of them.
If your dog has eaten a grape stem, contact your local VEG emergency hospital immediately, as the risk for contamination is higher than with vines and leaves.
