Potentially Hazardous Foods
~Keeping Your Furry Friend Safe~
Ashley Peters
There are many dangerous foods out there that can make our pets sick, or even worse, cause death. While researching this topic I myself have learned many new harmful foods and I hope this article will enlighten some of you too. Enjoy…
Chocolate: This may be a tasty treat for you and me, but can be deadly to our furry friends. Why chocolate is so dangerous for dogs and cats is because it contains 2 types of toxins; one being caffeine and the other being theobromine. Caffeine causes the animal to become hyperactive and excited, much like a sugar rush. The theobromine is a diuretic (causing increased urination) and a cardiac stimulant (heart stimulant). Animals that have eaten chocolate will show sings of vomiting and diarrhea at first, followed 6-12 hours later by thirstiness and abnormally frequent urination which may be bloody. Some symptoms include restlessness, abdominal pain, fever, muscle tremors, panting and pacing. Next an elevated and sometimes irregular heart rate, seizures and blood pressure changes will occur. These symptoms can last for up to 3 days if left untreated and can prove fatal should your pets breathing and or heart give out. Pets may also fall into comas if left untreated.
Cooking chocolate and coco powders are the most deadly forms because they contain 10 times more theobromine than milk chocolate. Even an act as innocent as licking the chocolate frosting off a plate can sicken your pet. Next in line comes semi-sweet and dark chocolates, followed by milk chocolate. I’ve added this table to give you an idea of just how little chocolate your pet needs to eat to become sick:
Milk Chocolate |
1 oz. per pound of body weight |

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Semi-Sweet Chocolate |
1 oz. per 3 pounds of body weight |

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Baker’s Chocolate |
1 oz. per 9 pounds of body weight |

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Raw Salmon: Salmon Poisoning Disease (SPD) happens when dogs ingest infected raw salmon. It’s caused by a rickettsial organism called Neorickettsia helminthoeca. These organisms are carried by flatworms that first infect freshwater snails. Salmon then eat the infected snails and become a secondary host. When a dog eats an infect salmon the flatworm larva burst and become embedded in the dogs intestinal track. You will start noticing symptoms of anorexia and lethargy 5 to 7 days after the dog eats the fish. A temperature of about 104 to 107 generally occurs in the first couple of days and will then return to normal. Next you will notice vomiting by the 4 th day. Then within a few days of the vomiting you will notice bloody diarrhea that is often bright yellow in color. Enlarged lymph nodes will also be present.
Things can get a little tricky in sever cases because this disease resembles a few other diseases. The gastrointestinal symptoms will resemble canine parvo and the ocular and nasal symptoms will resemble canine distemper. Your vet can diagnose SPD threw fecal samples and if caught in time can be treated. Your vet will generally provide a wormer to kill the parasite, supportive hydration and an antibiotic to kill the rickettsial organism. You should see improvement in as little as 2 days. But if left untreated there is a mortality rate of 90%, so if you suspect your dog has eaten raw salmon contact your vet immediately! |
Bones:“Give a dog a bone?” Some people say yes, other say absolutely not! Bones are not necessarily “bad” for your pets, but can be dangerous for several reasons. Cooked bones and raw bones may splinter causing several ailments including choking and internal puncture wounds which will lead to sever illness and generally surgery to fix the problem. Raw bones, on occasion, will lead to salmonella or E. coli poisoning which has the same vomiting and diarrhea effect as in humans. Not all bones are bad and they do have helpful benefits such as removing plaque from your dog’s teeth. Here are a few bad bones and better bones to help you in your decision making, I also recommend that you talk to you vet about this because every dog is different: |
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Bad Bones: Chicken and turkey legs, ham, pork chops and veal |

Better Bones: Raw chicken necks and beef knuckles
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Dairy Products: Did you know some dogs and cats are lactose-intolerant? Just like in humans, lactose-intolerant pets can develop excessive gas and a nasty case of diarrhea. A little milk in a saucer for Kitty is okay and a little cheese for Fido will do, just remember that less is better! |
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Liver: Liver can be a healthy threat for your pet, but too much can be harmful leading to Vitamin A Toxicity, or hypervitaminosis A. Animals with hypervitaminosis A will show signs of weight loss, excessive bone growth on the spine and elbows, deformed bones and anorexia. If this condition is left untreated it can cause death. This can happen if an animal is eating at least 3 servings of cooked liver per week, or any raw liver. Animal’s taking vitamin A supplements and eating liver are at a higher risk of overdose. |
Raw Eggs: Cooked eggs are perfectly safe, but think about why we don’t eat raw eggs. Feeding raw eggs can have a couple of downfalls including biotin depletion, which is one of the B vitamins. They’re also often crawling with bacteria such as, but not limited to, salmonella which can poison your pet. The symptoms of biotin depletion include skeleton deformities, weakness, hair loss and growth retardation. If your pet has these symptoms consult your vet immediately! |
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Tobacco Products: Chewing and pipe tobacco, cigarettes and there butts, cigars, nicotine patches and gum are all fatal if ingested. The first signs may appear in the first hour and include hyperactivity, diarrhea, panting, salivation and vomiting. These are then followed by twitching, increased heart rate, muscle weakness, collapse and cardiac arrest. |
Onions & Garlic: These veggies can cause your pet to have a disease called Heinz body anemia. Disulphides damage the surface of the red blood cells causing them to burst. Onions and garlic are loaded with disulphides! Your pet will become breathless, weak and tire easily and severely effected pets may require blood transfusions. Your pet can be poisoned by all forms of onions including table scraps, raw, cooked and dehydrated onions. Garlic is much less toxic, but large amounts can be harmful. Poisoning may occur a few days after the pet has ingested these veggies and here are some of the signs to watch for:
- Vomiting & diarrhea
- Lack of interest in food
- Red pigment in the urine from the red blood cells bursting
- Shortness of breath because the reduced number of red blood cells can not carry oxygen through your pets system
Also look for increased heart rate, fever and confusion. If your pet is experiencing these symptoms you must get to the vet immediately! |
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Bread Dough: After being eaten bread dough expands, or rises, from your pet’s body heat. This can cause bloating, vomiting, depression, abdominal pain, and disorientation. Not necessarily deadly, but very uncomfortable. |
Mushrooms: There are so many different types of mushrooms and so many different symptoms that occur from intoxication that treatment and prognosis are very uncertain. There is a very large range of things that can happen from eating poisonous mushrooms such as hallucinations, tearing, defecation, drooling, seizures, abdominal pain, urination, heart damage, neurological disorders, kidney and liver failure, delirium, vomiting, diarrhea, hyperactivity, coma and death. You may start seeing symptoms as soon as 20 minuets or as long as 8 hours after your pet ingests a bad mushroom. The most dangerous type of mushroom seems to belong to the amanita family, which can grow wild or appear in your kitchen. |
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Deadly Drinks: Never allow your pet to drink any type of alcohol because it can cause disorientation, urinary problems, bodily injury, sickness, coma and even death from alcohol poisoning. Pets are often attracted to the yeast in alcohol so be careful where you leave your drink. Caffeinated drinks such as teas and coffee can be dangerous too. The smaller the pet the more poisonous caffeine becomes because the toxicity level depends on weight |
Grapes and Raisins: These are so new to the poisons foods list that the toxin hasn’t even been identified. It is unknown how much your pet needs to eat in order to become sick, but in known cases the amount of grapes eaten varied between 9oz. and 2lbs. The symptoms include vomiting, diarrhea, abdominal pain, kidney failure, lethargy and anorexia. These symptoms have been appearing as early as 24 hours after the fruit has been eaten and can last for weeks. Aggressive treatment that includes stomach pumping and fluid therapy will be administered by your vet; most outcomes are uncertain. |
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Fruit pits/seeds: Plum, peach, pear, apple, apricot and cherry pits/seeds all contain cacogenic which can cause cyanide poisoning and this leads to respiratory problems. |
Raw Avocados: Avocados contain a toxin called persin which damages the heart, lungs and other tissue in the body. They are also very high in fat which can lead to vomiting and diarrhea. While a beneficial ingredient in processed pet foods, raw avacados could be too much of a good thing. |
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Macadamia Nuts and Macadamia Butter: Scientists don’t know exactly what the toxic element is in macadamia nuts, but there are cases on file that show eating as little as 6 nuts without their shells can cause paralysis or weakness in the hindquarters, tremors in the skeletal muscles and elevated body temperature. Some dogs are distressed, confused, have difficulty getting up, have swollen limbs and often pant heavily. The dogs in these cases did recover from the pain and muscle weakness. It is unsure if there have been any fatal overdoses from eating macadamias. |
After reading this I hope you feel a little more informed about the potentially hazardous foods that are lurking around our pets everyday. My advice is to know your pet so you will notice if they do start acting strangle. Also have your vet’s number in a handy place just in case an emergency might arise.
More information at the following websites:
Greyhound Friends of NJ, Inc.
"The Bad Foods For Dogs List"
http://www.greyhoundfriendsnj.org/info/display?PageID=2724
Pet Shed
"All about toxic foods for dogs"
http://www.petshed.com/articles/all-about-toxic-foods-for-dogs.html
HealthyPets.com
"Toxic Foods and Plants for Cats"
http://www.healthypets.com/toxiccat.html
and
"Toxic Foods and Plants for Dogs"
http://www.healthypets.com/toxicdog.html
Creatures & Country
"Pets & Poisons"
http://www.feednfarm.com/petsandpoison.html
Earth Clinic
"List Poisonous foods for cats and dogs"
http://www.earthclinic.com/Pets/poisonous_foods.html
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