Grapes, Nuts, and Your Dogs Health -- Foods that Fido should
Avoid
"Magoo was a big, playful Labrador retriever who often got
himself into sticky situations..."
So begins a story in the latest report from the ASPCA on foods
that may be toxic to dogs. It turns out that Magoo got into the
pantry and snagged himself about a pound of raisins. He ate the
whole thing, of course.
The ASPCA never mentions Magoo's fate. But they do tell us that
as little as a handful of raisins can impair a dogs health and
has been fatal for some. Ditto for the grape.
Who Knew?
Growing up, I regarded our family dogs as "the first cycle of
the dishwasher". They were good about waiting their turn for
whatever we left on our plates, and we weren't too concerned
about offering them "people food". It never crossed our minds
that our dogs health could be affected by a few measly table
scraps. What was safe for us, we figured, was safe for our pets.
What's more, whenever I ate grapes, I liked to give one or two
to our German Shepherd "Tiffany". The grapes always popped out
of her mouth when she tried to bite into them and Tiffany, ever
the good sport, refused to give up until she'd squashed each one
into submission. It guaranteed at least 60 seconds of harmless
fun.
Tiffany was also fond of chewing gum (she chewed it -- wrapper
and all -- but didn't swallow it!) We had the sugarless kind,
which is often sweetened these days with xylitol.
Little did I know that I might have been poisoning our family
pet! (More on xylitol below).
Why are grapes harmful?
As far as grapes and raisins go, no one is sure why they're
harmful. It's been confirmed that even grapes grown without
fertilizers or pesticides can be toxic to dogs. But not to every
dog, and not every time. It's also not known whether small
amounts eaten over a long time period could have a cumulative
effect.
What we do know is that the end result in nearly all reported
cases of grape or raisin toxicity is acute kidney failure. (The
term "acute" means that the condition is severe and comes on
quickly.) The dog ultimately can't produce urine, which means
they can't filter toxins out of their systems -- a process
essential to life.
During the twelve-month period in which the effects of grapes
were studied, the ASPCA Animal Poison Control Center handled 140
cases involving one or more dogs. Over a third of the dogs
developed symptoms ranging from vomiting to kidney failure, and
seven dogs died. The ASPCA based their study on reported cases,
so naturally there may be cases where a dogs health is entirely
unaffected by eating grapes. But until they know all the facts,
the Society advises against feeding pets grapes or raisins
in any amount.
An ounce of prevention
So, your dog just scored himself a big box of raisins. What's a
pet owner to do?
The first line of defense, if the grapes or raisins were eaten
recently, is to induce vomiting and administer activated
charcoal (it absorbs toxins in the GI tract). Vomiting is also
the first sign that your dog is in trouble, so skip right to the
activated charcoal if vomiting has already occurred. (In a pinch
you can make your own activated charcoal by charring a piece of
toast until it's blackened and crumbles easily.) Then call your
vet right away.
Can't reach the vet? Call ASPCA Poison Control:
888-426-4435
The vet will keep your dog on intravenous fluids for at least 48
hours and monitor blood chemistry daily. Normal blood work after
3 days usually means your dog is in the clear.
Keeping a watchful eye out, of course, is the best way to keep
your pet out of trouble. Like children, dogs (and other pets)
have a knack for getting into mischief when we're not looking.
It's Not Just the Grapes...
There are other foods your dog should be kept away from, and
some of them may surprise you.
Here are some other foods that can put a dogs health in harms
way:
Chocolate
Who can resist chocolate? Like it your not, your dog. Chocolate
is made with cocoa beans and cocoa beans contain a chemical
called Theobromine, which is toxic to dogs. So on Valentine's
Day, you're actually being kind to your best buddy if you eat
all the chocolates yourself! Read my special report on chocolate
at http://www.great-dog-gift.com/chocolate to learn more, and
see how different types of chocolate have varying effects on
dogs health.
Cocoa Mulch
Cocoa bean shells are a by-product of chocolate production
(which is how mulch made it into the "foods" category) and are
popular as mulch for landscaping. Homeowners like the attractive
color and scent, and the fact that the mulch breaks down into an
organic fertilizer. However, some dogs like to eat it and it
contains Theobromine.
Fatty foods
Fatty foods are hard for a dog to digest and can can overtax the
pancreas, leading to pancreatitis. This can threaten your dogs
health and is potentially fatal.
Nuts
Macadamia nuts should be avoided. In fact most nuts are not good
for a dogs health since their high phosporus content is said to
lead to bladder stones.
Mulch
Mulch isn't food, but there's one type tempting enough for dogs
to eat. Some dogs are attracted to cocoa mulch, and will eat it
in varying quantities. The coca bean shells can contain from
0.2% to 3% theobromine (the toxin ) as compaired to 1-4% in
unprocessed beans.
Onions
Onions, especially raw onions, have been shown to trigger
hemolytic anemia in dogs. (Stephen J Ettinger, D.V.M and Edward
C. Fieldman, D.V.M. 's book: Textbook of Veterinary Internal
Medicine vol. 2 pg 1884.) Stay away from onion powder too.
Potatoes
Potato poisonings among people and dogs are rare but have
occurred. The toxin, solanine, is poorly absorbed and is only
found in green sprouts (these occur in tubers exposed to
sunlight) and green potato skins. This explains why incidents
seldom occur. Note that cooked, mashed potatoes are fine for a
dogs health, actually quite nutritious and digestible.
Artificial Sweeteners
Xylitol is used as a sweetener in many products, especially
sugarless gum and candies. Ingesting large amounts of products
sweetened with xylitol may cause a sudden drop in blood sugar in
dogs, resulting depression, loss of coordination, and seizures.
According to Dr. Eric K. Dunayer, a consulting veterinarian in
clinical toxicology for the poison control center, "These signs
can develop quite rapidly, at times less than 30 minutes after
ingestion of the product" states Dr. Dunayer, "...therefore, it
is important that pet owners seek veterinary treatment
immediately."
Turkey
Turkey skin is currently thought to cause acute pancreatis in
dogs, partly due to it's high fat content.
Other foods listed by the ASPCA as harmful:
Alcoholic beverages
Avocado
(the only "fatty" member of the
vegetable family) Coffee (all
forms of coffee)
Moldy or spoiled
foods
Salt
Yeast dough
Garlic
The Bottom Line
Thanks to a more educated public, fewer fatalities from foods
like chocolate are being reported these days. But it's important
to keep up with what's currently known about foods and their
effects on dogs health. Grapes and cocoa mulch, for example,
were only discovered very recently to have harmful effects.
Check frequently with sources like the ASPCA, or sign up for the
"Cold Noses News" and we'll keep you informed. (You'll also get
a bunch of cool dog stuff along with your free registration).
Of course, being alert and getting your pet to the vet promptly
will help assure a happy outcome if something unfortunate should
happen. Here's to your dogs health and good nutrition!