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COCOA MULCH WARNING  - FACT OR FICTION? 

THE EMAIL 

The following email has been received by many of us in the past: 

Please  tell  every dog or cat owner you know. Even if you don't have a pet,  please pass this to those who do.

Over the weekend,  the doting owner of two young lab mixes purchased Cocoa Mulch from Target to use in their garden. The dogs loved the way it smelled and it was advertised to  keep cats away from their garden. Their dog (Calypso) decided the mulch smelled good enough to eat and devoured a large helping.  She vomited a few times which was typical when she eats something  new but wasn't acting lethargic in any way.  The next day, Mom woke up and took Calypso out for her morning walk . Half way through the walk, she had a seizure and died instantly.   

Although the mulch had NO warnings printed on the label, upon further investigation on the company's website, 

This product is HIGHLY toxic to  dogs  and cats.  

Cocoa Mulch is manufactured by Hershey's,  and they claim that "It is true that studies have shown that 50%  of the dogs that eat Cocoa Mulch can suffer  physical  harm  to a variety of  degrees (depending on each individual dog).   However, 98% of all dogs won't eat it."

*Snopes site gives  the following information: http://www.snopes.com/critters/crusader/cocoamulch.asp * 

Cocoa Mulch,  which is sold by Home Depot, Foreman's  Garden Supply and other Garden supply  stores contains a lethal ingredient called 'Theobromine'. It  is lethal to dogs and cats. It smells like chocolate and it really  attracts dogs. They will ingest this stuff and die. Several deaths already occurred in the last  2-3  weeks. 

Theobromine is in all chocolate, especially dark or baker's chocolate which is toxic to dogs. Cocoa bean shells contain potentially toxic quantities of theobromine,  a xanthine compound similar in effects to caffeine and theophylline.  A dog that ingested a lethal quantity of garden  mulch made from cacao bean shells developed severe convulsions and died 17 hours later. Analysis of the stomach contents and the ingested cacao bean shells revealed the presence of lethal  amounts of theobromine. 

If you suspect your dog may have eaten cocoa mulch, the ASPCA recommends contacting your veterinarian immediately or calling the Animal Poison Control Center at 1-888-426-4435 for expert advice. 


IS IT TRUE?
 

From Snopes: 

This warning about the potential danger to pets posed by cocoa mulch began appearing in our inbox in May 2003.  Unlike the majority of scary alerts spread through the Internet, there is at least some truth to this one, although we know of only one substantiated case of a pet death caused by ingestion of the substance. (in July 2007, “Moose,” a 3-year-old Labrador belonging to a Minneapolis couple, died after eating cocoa mulch purchased at a local store.  His owners had a veterinarian at the University of Minnesota perform a necropsy to determine the likely cause of death of their young and previously healthy pet.  The vet found cocoa shells in Moose’s stomach and evidence of theobromine in the shells.) 

Veterinarians have noted that cocoa mulch contains ingredients that could pose a health risk to dogs (and other pets that might be tempted to ingest it):

  “Cocoa mulch is a risk, especially to dogs, ” said Dr. Larry Family of Aqueduct Animal Hospital.  Found in most home garden centers, cocoa mulch is known for its fine texture and the sweet smell the fresh mulch gives off.  But Getting past the scent, Family says cocoa mulch can be dangerous if a dog starts eating it.  It contains two key ingredients found in chocolate:  theobromine and caffeine.  Similar to eating chocolate, he says a dog that eats just a few ounces of cocoa mulch could start having stomach problems and it could get worse if it eats more.

 “As time goes on they might act restless, excited, it can produce tremors and serious seizures,” Family explained.  ”Puppies are very curious animals.  So they’re going to be attracted to various things around the yard and [the effect of eating cocoa mulch] seems to be more severe in the small breeds, and it depends on the amount they actually ingest, Family said. 

The American Society for the Prevention of Cruelty to Animals (ASPCA) confirms the potential effects of theobromine and caffeine on dogs: 

Cocoa beans contain the stimulants caffeine and theobromine.  Dogs are highly sensitive to these chemicals, called methylxanthine.  In dogs, low doses of methylxanthine can cause mild gastrointestinal upset (vomiting, diarrhea, and/or abdominal pain); higher doses can cause rapid heart rate, muscle tremors, seizures, and death.

 Eaten by a 50-pound dog, about 2 ounces of cocoa mulch may cause gastrointestinal upset; about 4.5 ounces, increased heart rate; about 5.3 ounces, seizures; and over 9 ounces, death. (In contrast, a 50-pound dog can eat up to about 7.5 ounces of milk chocolate without gastrointestinal upset and up to about a pound of milk chocolate without increased heart rate.) 

According to tables we’ve examined, cocoa mulch contains 300-1200 mg. of theobromine per ounce, making cocoa mulch one of the strongest concentrations of theorbrmine a pet is likely to encounter in any chocolate product.  However, the question of the gravity of the risk presented by this type of gardening mulch remains a matter of debate.  According to Hershey's, for example: 

It is true that studies have shown that 50% of the dogs that eat Cocoa Mulch can suffer physical harm to a variety of degrees (depending on each individual dog).  However, 98% of all dogs won't eat it. 

And some of those who vend cocoa mulch note that although they're aware of the pet warnings, they've never encountered a case of a dog's being sickened by the product: 

"The weird thing is, it smells like a chocolate Pop Tart.  That's the best way I can describe it.  It really does have a chocolate scent to it," explained Shane Compton of Hewitt's Garden Center.

 Compton says cocoa mulch is not that popular at his store, but says it has its regular customers who every now and then wonder about the rumors they hear and the effect it has on man's best friend.

 "There's always stories on the Internet, but in the 30 years we've been here we've actually never heard of any body's dog getting sick," Compton said.

 Some manufacturers of cocoa mulch (such as the Cocoa Mulch brand) now proclaim that their products are theobromine-free and pet safe.  Responsible pet owners should take care in their selection of cocoa mulch brands; some might prefer to choose another form of soil enhancement for their gardens, such as cedar-based products, rather than gamble their dogs won’t be attracted to or harmed by cocoa mulch. 

(Although Home Depot is…a vendor of cocoa mulch…the company told us in May 2006 that:  ”The Home Depot does not and will not sell mulch harmful to pets.  The mulch sold by The Home Depot containing cocoa shells goes through several cleaning processes, including a high heat system in order to strip the cocoa fat from the shells without the use of any chemicals.”) 

The danger of canine theobromine poisoning does not begin and end with cocoa mulch, however; chocolate in any form poses substantial risks to some pets.  This most beloved of foodstuffs contains theobromine and small amounts of caffeine, both of which can sicken and even kill cats and dogs.

 Chocolate's toxicity to animals is directly related to three factors: the type of chocolate, the size of the animal, and the amount of chocolate ingested.  Unsweetened baking chocolate presents the greatest danger to pets because it contains the highest amount of theobromine, approximately 390 - 450 mg. per ounce.  White chocolate contains the least.  As a general rule of thumb, one ounce of milk chocolate per pound of body weight can be lethal for dogs and cats (Milk chocolate contains approximately 44-66 mg of theobromine per ounce.) 

Theobromine affects the heart, central nervous system, and kidneys, causing nausea and vomiting, restlessness, diarrhea, muscle tremors, and increased urination.  Cardiac arrhythmia and seizures are symptoms of more advanced poisoning.  Other than induced vomiting, vets have no treatment or antidote for theobromine poisoning.  Death can occur in 12 to 24 hours. 

This type of poisoning is uncommon because it is rare that a dog, even a small dog, will eat enough chocolate to cause anything more than an upset stomach.  Yet it can happen, especially if the animal gets into baking chocolate or powered cocoa, two forms of the sweet particularly loaded with theobromine.

 Do not feed chocolate to dogs or cats.  If you keep a pet, do not leave chocolate lying about lest your critter help himself to it and in so doing poison himself.  If your animal begins exhibiting signs of distress and you believe he might have gotten into some chocolate, call your veterinarian immediately. (It will help if you can supply information about the approximate weight of your critter, what sort of chocolate was ingested - white, milk, dark, cocoa powder, baking - and roughly how much.)  But time is of the essence if such poisoning has indeed taken place, so make the call right away. 

Last updated February 24, 2009 

http://www.snopes.com/critters/crusader/cocoamulch.asp 


From Doctors Foster and Smith, Pet Education.com

ASPCA Animal Poison Control Center Issues Update on Cocoa Bean Shell Mulch Fertilizer Warning

October 2003 News 

Retrospective study confirms potential risks to dogs. 

In response to increasing reports of dogs consuming cocoa bean shell mulch fertilizer, a retrospective examination of case data collected from January 2002 to April 2003 was conducted by the ASPCA (American Society for the Prevention of Cruelty to Animals) Animal Poison Control Center. The study concluded that dogs consuming cocoa bean shell mulch fertilizer may become ill, exhibiting signs consistent with methylxanthine toxicosis, which is similar to those seen with chocolate poisonings. The data suggests the most common signs that occurred following ingestion were vomiting and muscle tremors. Although it was not possible to quantify exact oral dosage amounts, the severity of clinical signs did appear to increase with the larger amounts anecdotally reported. "Since the updated data confirms that dogs can exhibit certain clinical effects after consuming cocoa bean shell mulch fertilizer, the ASPCA advises pet owners that they should avoid using this fertilizer around unsupervised dogs, and dogs with indiscriminate eating habits," comments Dr. Steven Hansen, Senior Vice President of the ASPCA Animal Poison Control Center.

 The retrospective study was presented at the September 2003 North American Congress of Clinical Toxicology. The study includes six cases of dogs ingesting cocoa bean shell mulch fertilizer that were received and managed by veterinarians at the ASPCA Animal Poison Control Center between January 2002 and April 2003. Of the total case data collected by the center, these six were selected for further study because the final outcome of the animal's condition was known. There was a clear observation and/or evidence of ingestion and the managing veterinarian assessed the animals' clinical signs as having a medium to high likelihood of being related to the cocoa bean shell mulch exposure. Within the selected cases, 50% reported vomiting, 33% involved muscle tremors (the amount ingested in these cases were described as "large" or "significant") and 17% had elevated heart rates, hyperactivity, or diarrhea. In 33% of the cases no clinical signs developed. California was the state from which more than half the cases were reported.

 Cocoa bean shells are a by-product of chocolate production, and are frequently sold and used for landscaping by homeowners. Some dogs appear to find the mulch attractive and ingest varying amounts. In general, while unprocessed cocoa beans, which come from the Theobroma cacao plant, contain approximately 1-4% theobromine and 0.07-0.36% caffeine, the theobromine content of processed cocoa bean shell mulch reportedly ranges from 0.19-2.98%. Dogs are known to be very sensitive to these chemicals, called methylxanthines.

 If a dog has eaten cocoa bean mulch fertilizer it is important to immediately contact a veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435. Treatment will depend on how much cocoa bean mulch a dog has eaten, when the mulch was eaten, and whether the dog is sick. Recommended care may include placing your dog under veterinary observation, inducing vomiting, and/or controlling a rapid heartbeat or seizures.

 http://www.peteducation.com/article.cfm?c=0+1275&aid=3004


ASPCA News Alert April 30, 2010
 

Pet Poison Alert: Cocoa Bean Mulch Can Be Toxic for Dogs

If your dog likes to spend sunny days lazing in the garden, his treat-seeking nose may lead him to one danger in particular: sweet-smelling but potentially harmful cocoa bean mulch.

 Many gardeners are familiar with the use of cocoa bean shells, a by-product of chocolate production, in landscaping—it’s especially popular for its attractive odor and color and eventual degradation into organic fertilizer. But many pet parents don’t realize that cocoa mulch, if eaten in large quantities, can be toxic to their furry friends. 

“Dogs are attracted to the fertilizer’s sweet smell,” says Dr. Steven Hansen, ASPCA Senior Vice President of Animal Health Services, “but like chocolate, cocoa bean mulch can be too much for our canine companions.” 

Ingestion of large amounts of cocoa bean mulch, which contains residual amounts of theobromine—a methylxanthine found in chocolate and known to be toxic to dogs—may cause a variety of clinical signs. These typically start with vomiting, diarrhea and elevated heart rate, and if large amounts are consumed, they may progress to hyperactivity, muscle tremors and possibly other more serious neurological signs. Treatment includes administering medical-grade activated charcoal, bringing tremors under control with cardiac monitoring and preventing further exposure. 

“We advise pet parents not to use cocoa mulch in areas where dogs can be exposed unobserved, particularly dogs who have indiscriminate eating habits,” says Dr. Hansen. He further recommends that pet parents consider using a nontoxic alternative, such as shredded pine, cedar or hemlock bark. These will keep your pooch—and your garden—happy and healthy. 

If you suspect your dog has ingested cocoa bean mulch, please contact a veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435. For more potential garden and lawn pet hazards, check out our Guide to Pet-Safe Gardening.

 http://www.aspca.org/news/national/04-30-10.html 


Hershey - Pets and Candy

Cocoa Mulch

The Hershey Company does not manufacture or market cocoa mulch. However, we periodically receive questions concerning cocoa mulch and pets.

Cocoa mulch consists of cocoa bean shells. Although not a food or a food ingredient, cocoa mulch, like chocolate products, contains naturally occurring theobromine and caffeine. As previously mentioned, animals like dogs are often sensitive to the theobromine, which can lead to toxicity and even death in some animals.  

Dogs and other animals are often attracted by the pleasant aroma from cocoa shell mulch.  Because it can be harmful to animals if ingested, think carefully about where you choose to apply the mulch and supervise your pets.  These steps can effectively eliminate the possibility of animal consumption in a quantity sufficient to cause adverse affects.  If your pet has eaten cocoa shell mulch, immediately contact your veterinarian.  

http://www.hersheys.com/nutrition/pets-candy.asp  


The Home Depot - Fact Check

Is mulch sold at The Home Depot harmful to pets?

The Home Depot offers various mulch options for our customers. A few contain cocoa shells and are clearly labeled as cocoa mulch. Some believe this type of mulch may pose a risk to some animals if ingested. We have received no reports of pet illness from ingestion of this product. We provide countless alternatives for our customers in this category, and stand by the quality and safety of our mulch products for use in the garden and outside the home. 

http://corporate.homedepot.com/wps/portal/Fact_Check