Why is chocolate poisinous to dogs?

I've heard that if dogs eat chocolate they could get really sick and could die. So why is it poisinous?

it is only a lot of itbecuase it gets sticky and they cant breath

Chocolate contains the chemical theobromine, which is toxic to dogs. (Chocolate is only lethal in high doses, although smaller quantities can cause vomiting and diarrhea.) Milk chocolate has less theobromine than dark chocolate. Bakers chocolate has more theobromine than both dark and milk chocolate. So bakers chocolate is the worst for dogs to have, and milk chocolate is less dangerous.The below text (between the double lines) is quoted from: http://www.talktothevet.com/ARTICLES/DOGS/chocolatetoxic.HTM========On average,Milk chocolate contains 44 mg of theobromine per oz.Semisweet chocolate contains 150mg/oz.Baker's chocolate 390mg/oz.Using a dose of 100 mg/kg as the toxic dose it comes out roughly as:1 ounce per 1 pound of body weight for Milk chocolate1 ounce per 3 pounds of body weight for Semisweet chocolate1 ounce per 9 pounds of body weight for Baker's chocolate.So, for example, 2 oz. of Baker's chocolate can cause great risk to an 15 lb. dog. Yet, 2 oz. of Milk chocolate usually will only cause digestive problems.========(White chocolate contains 1 mg of theobromine per oz. So that is virtually none. Essentially no risk of theobromine poisoning with white chocolate.)The average candybar is under 2 oz and is made of milk chocolate. So unless the dog is under 2 pounds, it isn't a "toxic dose". ** I still don't recommend giving dogs chocolate as a treat though. It is unhealthy, sugary, and fattening. **.

the coco is too much for their stomach too handle and the suagr can overload their system and deprive them of nutrients that why dog chocolate is tasteless as it lacks in sugar........

Chocolate contains theobromine, and it will cause a high like caffeine does for us humans and also can cause severe diarrhea, seizures and heart attacks. Milk chocolate does not have a large amount of this theobromine, dark chocolate and baker's chocolate has the more concentrated amounts. Either way, caution with chocolate around dogs is advised!

Dog TopicsGet the Dog Topics Newsletter for Free! Dog stories, tips, weekly site updates & more ... * Dog Topics Home * Blog * About Dog Topics * Subscribe to Dog Topics7 Questions About Dogs and ChocolatePosted by Clare Bristowdog-sniffingYou've probably heard that chocolate can kill your dog - but do you know why chocolate is poisonous, which types of chocolate are more harmful than others, the symptoms of chocolate poisoning and the one thing that's more lethal than chocolate?The following seven questions tell you all you need to know about chocolate and your dog.Why is chocolate poisonous?The cocoa tree contains two naturally occurring substances - theobromine and caffeine - both of which are toxic to dogs. Cocoa beans conatin theobromine a higher concentration than caffeine.Dogs metabolise theobromine very slowly - it can stay in your dog's bloodstream for up to 20 hours. During that time it interferes with the body's functioning mainly stimulating the central nervous system and affecting the heart and kidneys.What is the toxic level of theobromine?The lethal dose for theobromine is between 100mg to 200mg per kg of bodyweight ; the lethal dose for caffeine is the same.However, severe symptoms of theobromine poisoning may be evident at much lower doses .According to the American Society for the Prevention of Cruelty to Animals' Animal Poison Control Center, mild signs of poisoning occur in animals ingesting 20 mg of theobromine and caffeine per kg of bodyweight, severe signs are seen at 40-50 mg/kg, and seizures occur at 60 mg/kg.How your dog reacts to swallowing chocolate will be a function of his size, general health, sensitivity to theobromine and caffeine, and the type and quantity of chocolate eaten.How much theobromine and caffeine is there in chocolate?The level of theobromine and caffeine in chocolate varies between the type of chocolate, the brand and the fact that the natural occurrence of these substances in cocoa beans is variable.Broadly: * White chocolate - 1.1 mg of theobromine and caffeine per ounce of chocolate; * Milk chocolate - 64 mg of theobromine and caffeine per ounce of chocolate; * Dark sweet chocolate - 150 mg of theobromine and caffeine per ounce of chocolate; * Instant cocoa powder - 151 mg of theobromine and caffeine per ounce of chocolate; * Unsweetened baking chocolate - 440 mg of theobromine and caffeine per ounce of chocolate; and * Dry coca powder - 808 mg of theobromine and caffeine per ounce of chocolate.So how much chocolate can my dog eat?White chocolate does not contain very much theobromine and caffeine, and your dog would need to eat a very large quantity before he would be at risk from theobromine poisoning.If we look at a 10lb (4.5kg) dog such as a Yorkshire Terrier and a 70lb (32kg) dog like a Labrador Retriever, the following amounts of chocolate would be considered lethal doses (if we take 100mg/kg as the lethal dose):For the Yorkshire Terrier - approximately 7oz of milk chocolate or 3oz of instant cocoa powder, or 1oz of unsweetened baking chocolate or just over half an ounce of dry cocoa powder.For the Labrador Retriever - approximately 3lbs of milk chocolate or 1.3lbs of instant cocoa powder or 7oz unsweetened baking chocolate or 4oz of cocoa powder.These are approximate amounts only, but do show how lethal dark chocolate is compared to milk chocolate, and how small dogs are more at risk than large dogs.Dogs get a taste for chocolate - they find the flavor of theobromine addictive. Even if your dog can eat small amounts of chocolate without any ill effect, don't give him a taste for it because he'll then try to sniff out and eat chocolate at every opportunity.If you really want your dog to eat something that's like chocolate, you can always use carob which is a good alternative; here a link to a recipe for carob biscotti which your dog with love just as much as chocolate biscotti!What are the signs of poisoning?The symptoms of theobromine poisoning generally show within four to twenty four hours of your dog having eaten the chocolate.The early symptoms include vomiting, diarrhea, excessive thirst, increased urination and restlessness .As time goes on, and your dog absorbs more theobromine into his system, symptoms such as lack of co-ordination, muscle twitching, hyperactivity, increased heart rate and raised blood pressure will be evident .These can lead on to seizures, coma, heart arrhythmia, hyperthermia, and ultimately death .Even if your dog eats a small amount of chocolate, he may show signs of vomiting and diarrhea due to the high fat and sugar content of the chocolate.What do I do if my dog's eaten chocolate?The first thing you should do is to call your vet and describe the symptoms your dog is showing (if any) and the type and quantity of chocolate your dog has, or you think he has, eaten.Your vet will need to treat your dog, but may advise you to make your dog vomit before bringing him to the surgery. This will reduce the amount of theobromine that's in your dog's body that he can absorb.Most dogs recover within 24 to 72 hours of treatment by their vet .Does this mean that cocoa mulch is toxic too?Yes, cocoa bean shell mulch is very toxic to dogs - there is approximately 255 mg of theobromine per ounce of mulch.For a lethal dose of cocoa mulch our 10lb (4.5kg) Yorkshire Terrier needs to ingest just under 2ozs (368g), and our 70lb Labrador Retriever just 13ozs (368g).Dogs are attracted to cocoa mulch as it has a sweet smell. As your dog explores things of interest with his mouth, and being an indiscriminate eater, he could easily swallow a couple of mouthfuls whilst he's investigating where that lovely cocoa smell is coming from.It's not easy to notice that your dog has swallowed cocoa mulch - you're not likely to spot a pound of mulch missing from the garden. Most deaths from theobromine toxicity are from the ingestion of coca mulch because owners aren't aware their dog's eaten it. By the time the symptoms show the dog has often suffered too much internal damage to be saved .Did you enjoy this post? Subscribe to the Dog Topics feed to be notified every time a new post is added to this blog.Keywords: chocolate toxicity and dogs, dogs and chocolate, symptoms chocolate poisoning, theobromine poisoningFiled Under Dog Safety, Blog Related Posts: * Sorry, No Related Posts FoundComments2 Responses to “7 Questions About Dogs and Chocolate” 1. MyAvatars 0.2 Marco on December 18th, 2007 12:31 am Hi, Congrats for your blog, very nice! Why don't you create a pet profile on www.pet-files.com? You can publish photos, videos and a lot of info (my profile: http://www.pet-files.com/marco80/mescal). And you can create a slideshow with your photo that you can easily embed into this blog! Hope you appreciate the idea. - Marco 2. 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it is true, i worked in a kennels for years and there was 2 dogs there that i saw die from 1 eating chocolate and the other having coffee.they both contain caffeine which causes the heart rate to speed up, but some animals heart rates speed up and the dog cannot handle it so it ends up having a fit and then dying of a heart attack,and believe me it is not a nice sight to watch.so it is best not to give the animal chocolate coffee or tea, they do make choc for dogs.why put your animals at risk for the sake of a piece of chocolate.

OK to make it simple chocolate is bad for dogs, especially at large quantities, because chocolate has theobromine. this can bring about epileptic seizures also increases urination and affects the central nervous system as well as heart muscle. This can lead to hyperthermia, muscle tremors, seizures, coma and even death.the thing here is not to give chocolate to your dog even just a little piece because they will only crave for more, and when they see a chance to eat more chocolate oh yes they will.if your dog accidentally eats to much chocolate here's what your vet is most probably give your pet Toxiban: Activated Charcoal (bring to your vet for proper administration)

chocolate is poisinous to dogs because it has a lot of caffiene in it and it makes there hearts beat fast.hope i helped

The caffeine in chocolate speeds up there hart rate and cause them to have hart attacks and other things that I don't know. I did see a dog that all most died on Animal Planet yesterday. The dogs stomach was bloated and they had to pump his tummy. Smaller dogs are at more of risk. Some of other things that are not good for dogs are: Grapes, onions, peach and apple seeds.

it wont necessarily kill them but its very unhealthy for them