Chocolate, tea, coffee & cola Nuts Onions Potatoes Turkey Skin Chocolate, tea, coffee, cola: It is not chocolate itself that is poisonous to dogs, it is the theobromine, a naturally occurring compound found in chocolate. Theobromine causes different reactions to different dogs: dogs with health problems, especially epilepsy, are more affected by theobromine than healthy dogs. Theobromine can trigger epileptic seizures in dogs prone to or at risk of epilepsy. The size of the dog will also be a major factor: the smaller the dog, the more affected it is by the same amount than a larger dog. Therefore, toxicity is described on a mg/Kg basis. Furthermore, theobromine can cause cardiac irregularity, especially if the dog becomes excited. Cardiac arrhythmia can precipitate a myocardial infarct which can kill the dog. Theobromine also irritates the GI tract and in some dogs can cause internal bleeding which in some cases kills them a day or so later. Theobromine is also present in differing amounts in different kinds of chocolate. Milk chocolate has 44-66 mg/oz, dark chocolate 450 mg/oz and baking/bitter chocolate or cocoa powder varies as much as 150-600 mg/oz. How much chocolate a dog can survive depends on its weight (and other unknown circumstances). Under 200 mg theobromine per kg body weight no deaths have been observed. Theobromine will stay in the bloodstream between 14 and 20 hours. It goes back into the bloodstream through the stomach lining and takes a long time for the liver to filter out. Within two hours of ingestion, try inducing vomiting unless your dog is markedly stimulated, comatose, or has lost the gag reflex. If your dog has eaten a considerable amount of chocolate, or displays any of the above symptoms, take it to the vet without delay. In the absence of major symptoms, administer activated charcoal. The unabsorbed theobromine will chemically bond to this and be eliminated in the feces. In pinch, burnt (as in thoroughly burnt, crumbling in hand) toast will do. Nuts: Walnuts are poisonous to dogs and should be avoided. In particular, there is a type of fungus common to walnuts (especially wet deadfall walnuts) that will cause severe episodes of seizuring. Many nuts are not good for dogs in general, their high phosphorous content is said to possibly lead to bladder stones. 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.) Also: "Six Cases of Heinz Body Haemolytic Anaemia Induced by Onion and/or Garlic Ingestion" - CM Edwards and CJ Belford Aust.Vet.Prac. 26 (1) March 1996, 18-22. Potatoes: Potato poisonings among people and dogs have occurred. Solanum alkaloids can be found in in green sprouts and green potato skins, which occurs when the tubers are exposed to sunlight during growth or after harvest. The relatively rare occurrence of actual poisoning is due to several factors: solanine is poorly absorbed; it is mostly hydrolyzed into less toxic solanidinel; and the metabolites are quickly eliminated. Note that cooked, mashed potatoes are fine for dogs, actually quite nutritious and digestible. Turkey Skin: Turkey skin is currently thought to cause acute pancreatis in dogs. |
Poisonous Foods
| Chocolate Tea Coffee onions Turkey Skin |