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The Daily Vet is a blog featuring veterinarians from all walks of life. Every week they will tackle entertaining, interesting, and sometimes difficult topics in the world of animal medicine – all in the hopes that their unique insights and personal experiences will help you to understand your pets.

Not-so-grape expectations: Poison fruit for dogs

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July 13, 2009 / (9) comments

Picking out grapes for your poolside sangria? Don’t throw them to the dogs...please.

 

Though veterinary medicine doesn’t quite understand how it is that pets manage to get sick from eating grapes and raisins (the toxic element has not yet been identified), we know that some dogs die of kidney failure when they eat too many. As few as a small handful have been known to kill. But not all dogs. Not every time. 

 

That’s perhaps why so many dogs you may have had in the past seemed OK when they ate table grapes, licked grape juice off the floor or enjoyed raisins as tasty treats. But that shouldn’t make you feel that grapes are OK. Not for all dogs. And not every time.

 

Was that plain enough English or should I repeat it again?

 

Case in point: A patient of mine recently had to be rushed to the emergency service in the middle of the night after the husband failed to heed the wife’s warning on the raisin snack thing. 

 

“All my dogs have always eaten raisins and this one will, too. I just wanted to prove it to you.” 

 

Murphy’s Law being what it is, sickness ensued. Acute kidney failure. But luckily, no death. The cause of the illness was obvious. Treatment was swift. And the husband had to hang his head in shame and swallow the $3,000 bill for five days of ICU. 

 

Sorry...but you have to pay to play...if you’re going to do it with raisins and grapes.

 

 

Dr. Patty Khuly

 

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COMMENTS (9)
1
Grapes
by Dr. Guen Wright on 07/13/2009 02:25pm

This was a great article and I would like to know of other human food issues that aren't good for dogs including the controversy about chocolate as I have heard two different recommendations from vets. Thanks

2
Grapes
by Dr. Patty Khuly on 07/14/2009 11:56am

Chocolate is definitely off the list for dogs. Theobromine is the compound that all chocolates have (except white chocolate, which is not really chocolate) that can kill dogs. Though one or two M&M's won't hurt your dog (milk chocolate has less theobromine), why risk it? The dark chocolate is the absolute worst and I've seen dogs die after consuming it.

Macadamia nuts, onions and anything containing the sugar substitute xylitol are also off the menu.

3
grapes
by dokj on 07/25/2009 06:12am

In the past i've been giving grapes to my dogs and none of them got sick, they're just lucky. I like this article, it provides warning not to pamper pets with grapes. Thanks.

4
Broccolis
by MBFrnk on 08/19/2009 07:59pm

My dog was diagnosed recently with diabetes.He is now under a special diet by his vet.He told me to give him at noon as a snack some broccolis,are they safe? and if is not why.Thanks

5
toxic to dogs?
by kelly on 01/26/2010 06:50pm

I've read conflicting answers on this one and would like know first hand, 'from the horse doc's mouth' ;-) so to speak ... are pistachio nuts toxic to dogs?

I have a five pound yorkie-shitzu mix, he loves them - isn't given more than 2 or 3 - and has never had a reaction. Recently someone told me that all nuts are deadly to dogs, so I've stopped letting him have them.
I've also cut out the occasional 1 or 2 red grapes he loves as well.

So what's the final answer doc?

Are these things that would or could cause an instant reaction, or even death? Or are they things that cause serious problems over time if consumed regularly or in large quantities?

Thanks!
Duke's Moma
Westchester, NY

6
Nuts!
by Dr. Patty Khuly on 01/27/2010 08:34am

According to the animal poison control data it's only macadamia nuts we need beware of.

7
raisins
by Beverly Lessard on 02/04/2010 07:43pm

my beagle got up on the counter and ate a spice raisin cake should I take him into the vet ai am known as an over peotective owner but reading the above posts it has been about 24 hours now

8
Yes, Beverly, I would. You
by Dr. Patty Khuly on 02/06/2010 07:24am

Yes, Beverly, I would. You never know which dogs will have trouble and a whole cake may carry a toxic number of raisins. At the very least, I would contact ASPCA's poison control (go to the website by googling them) and spend $65 on a very important phone call with a toxicologist. If he/she deems it necessary for you to head to the veterinarian based on what's been consumed, he/she will help your vet apply the best possible treatment approach. Good luck and remember, not all dogs get sick with raisins so you may be just fine. Just don't take a chance. It's not worth it.

9
Rio Vida Transfer Factor
by Patrizia Chispa on 11/19/2011 03:32pm

my 60 pound dog has had kidney problems due to tick fever. She eats now super well (k/d), but sometimes still gets urinary problems. The vet now wants her to boost her immune system by drinking 4Life Rio Vida Transfer factor and have a tablet a day. Reading the ingredients I find out it has grape juice and now Im very afraid of giving it to my dog. Is my instinct going the wrong way? or this vet is not well informed? My dog is quite healthy and happy, just that her exams threw that she might be getting another urinary infection.

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About fully vetted

Jennifer Coates, DVM

Photo of Dr Coates

Image credit: Jim Piraino

...graduated with honors from the Virginia-Maryland Regional College of Veterinary Medicine in 1999. In the years since, she has practiced veterinary medicine in Virginia, Wyoming, and Colorado. She is the author of several books about veterinary medicine and animal care, including the Dictionary of Veterinary Terms: Vet-Speak Deciphered for the Non-Veterinarian. Dr. Coates also writes short stories that focus on the strength and importance of the human-animal bond, and freelance articles relating to a variety of animal care and veterinary topics. Dr. Coates lives in Fort Collins, Colorado with her husband, daughter, and various species of pets.

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