Chocolate contains a substance called theobromine which is toxic to cats and dogs. It all depends on the type and size of the dog, the type and amount of chocolate. It’s the theobromine in chocolate that is toxic for dogs, writes veterinarian Julianne Miller, and theobromine levels vary depending on the type of chocolate. Baking chocolate and gourmet dark chocolate are highly concentrated and contain 130-450 mg of theobromine per ounce, while common milk chocolate only contains about 44-58 mg/ounce. The approximate methylxanthine content per ounce of chocolate depends on the type of chocolate: Therefore, a ten-pound dog would need to ingest more than 80 ounces of white chocolate to experience mild to moderate toxicity, but only about 0.2 to 0.3 ounces (about 6 to 9 grams) of baking chocolate. While there is no right or wrong answer to this, we know dogs show symptoms of poisoning when they eat 20mg of theobromine (the toxic chemical in chocolate) for every kilogram they weigh. The reason for this is not fully understood by vets, but it’s known that it leads to vomiting, weakness, hyperthermia, and loss of bodily functions. One pound of milk chocolate is poisonous enough for 20 pound dog. It would take 2-3 candy bars to poison a 10 pound dog. Baking chocolate and gourmet dark chocolate are highly concentrated, while common milk chocolate has a little. When using the chocolate toxicity calculator, it is very important to know the type of chocolate that your dog ate as some are much more toxic than others. “Chocolate.”. (Theobromine has an LD50 defined as 100mg-200mg/kg BW, this is the amount that has been shown to be lethal in 50% of cases). In rare cases, dogs can die from eating chocolate. Approximately one pound of milk chocolate is poisonous to a 20-pound dog; one-half pound for a 10-pound dog. This can vary based on your dog's metabolism and the amount of food and water ingested that day. Large dogs can also tolerate more chocolate than small ones before it becomes a big concern. As peculiar as it may sound, recent researches show that even dog parents that are aware of the toxic effects tend to frequently give their four-legged mate a small amount of chocolates. Theobromine is toxic to dogs and other pets at certain doses. dogs chocolate should not be a thing, we should not give them any type as chocolate contains theobromine and caffeine. Here’s the math: 8 x 58 mg divided by 40 (smaller dog’s weight) is just, Gwaltney-Brant, Sharon M., DVM, PhD, DABVT, DABT. But, dark, milk and white chocolate have a low percentage of it. Both compounds are in the same chemical class, and they both affect the central nervous system - but theobromines are far more toxic to dogs than caffeine. The pet may still get an upset stomach or diarrhea, but you won’t have to worry about bringing them to the emergency hospital. There's a lot you need to know to make things go smoothly with your new friend. These symptoms become severe at 40 to 50mg per kg. This contains much higher levels of theobromine and while the amount varies, the recommendation is that if a pet eats more than 3.5g per kg body weight … Also, the darker the chocolate, the more toxic it is. Depending on your dog’s weight, even small amounts of chocolate can be very bad for your dog. Many of my clients panic when their dog eats a few M&M’s or some chocolate brownies. How much chocolate is toxic to dogs? Knowing how much and what kind of chocolate your dog ate can help you and your vet determine if you have an emergency. The toxic component of chocolate is theobromine. The amount of toxic theobromine varies with the type of chocolate. … The toxic amount will be lower for high-quality products like Lindt, Haighs or Ghirardelli. Size matters. Obviously, chocolate is bad for dogs since it stimulates the nervous system. White chocolate barely poses any threat. Also, the darker the chocolate, the more toxic it is. Chocolate poisoning is a problem that occurs mainly in dogs but also occurs occasionally in cats or other animals. How Much Chocolate Is Toxic for Dogs? From this you can see that the toxic dose is dependant on the weight of the dog, and that unsweetened cooking chocolate is particularly dangerous. treatment if your dog eats too much chocolate, 225 mg (Be aware that these may be used for landscaping mulch. is Chocolate really that toxic to your dog, and do you need to worry? How Much Chocolate Is Toxic to a Dog? It causes problems with the nervous system, bowels, kidneys and heart. Higher quality chocolates contain a higher percentage of cacao. According to the Merck Veterinary Manual, Baker's Chocolate of approximately 1.3 g/kg (0.02 oz/lb) of a dog's body weight is sufficient to cause symptoms of toxicity. The high level of theobromine in dark chocolate means it takes only a very small amount to poison a dog. However, just 2 ounces of Baker's chocolate can make a 20-pound dog very sick! Then, call your veterinarian. Dr. Smith is part of The Spruce Pets' veterinary review board. You just need to know your dog's weight along with the type and amount of chocolate eaten. It all depends on the type of chocolate, as well as the size and the general health condition of the dog. Risks are higher for chocolate with high cocoa levels and when body weight is lower. Perhaps the following chart can put into perspective as to how much of which type of chocolate a dog has to eat to cause toxicity. Theobromine is toxic to dogs and other pets at certain doses. Dog owners often ask how much chocolate can kill a dog. Chocolate is toxic to dogs because it contains substances known as methylxanthines, specifically caffeine and theobromine. On the flip side, a tiny toy breed may get very sick after eating just a bite of baking chocolate. With any poisoning or toxicity question, know your pet’s approximate weight and the best guess as to how much of the toxin your pet may have eaten. How much chocolate is toxic to dogs? Approximately one pound of milk chocolate is poisonous to a 20-pound dog; one-half pound for a 10-pound dog. The average chocolate bar contains 2 to 3 ounces of milk chocolate. Humans easily metabolize theobromine, but dogs process it much more slowly, allowing it to build up to toxic levels in their system. If your dog ingests an amount CLOSE to 20 mg or more of toxic ingredient per pound of dog, you need to call the vet right away. Early signs of poisoning include: The Effect of Chocolate Type on Toxicity: The Two Beagles and the Sampler Box The Case While their owner was at work, two beagles got into a sampler box containing different types of chocolate pieces. “If you suspect your dog may have eaten even a small amount of macadamia nuts, It would take 2-3 candy bars to poison a 10 pound dog. Many nuts are not good for dogs; however, macadamia nuts rank among the most toxic. As a responsible dog owner, it's important to understand what amount of chocolate is dangerous and proper treatment if your dog eats too much chocolate. Why Is Chocolate TOXIC For Dogs? This is equivalent to a large or king-sized candy bar. If you suspect your dog has eaten chocolate, first try to determine the type of chocolate and the amount eaten. If it's after hours, try to reach a 24-hour emergency vet in your area or call the ASPCA poison control hotline. The darker the chocolate, the higher the concentration of methylxanthines. 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