Sadly, there are several household items which we tend to take for granted that are potentially very hazardous to your dog's health. It is especially important to be aware of this because as you know, dogs are very much scavengers and will often eat whatever they can sink their fangs into. I would say that may own dog is more like a mobile garbage disposal. It is also very important to be aware of these items since their sense of smell is so well developed that your pooch will be able to find what you may think is well hidden.
One of these dangerous household items, it turns out, is simple chocolate. While chocolate has been reported recently to be high in human-friendly antioxidants, it appears to be potentially lethal for our pets, and particularly for our dogs. Cats are mostly unaffected since they do not care for the taste of chocolate, but dogs tend to be crazy about it. Certain breeds of dogs react indifferently to chocolate. The root of the problem is that chocolate contains various chemicals which are called methylxanthine alkaloids(sometypes have more of these chemicals than others)
Sadly, relatively miniscule amounts of these chemicals are capable of causing such serious problems as constriction of the arteries and an increased heart rate. Large amounts may cause even more dire symptoms and a pound of milk chocolate could possibly kill a sixteen pound dog. If you find that your dog has eaten chocolate then by all means take note of the it's type and try to estimate the amount eaten. Then get on the phone with a veternarian or an emergency facility. Be sure that your children know how important it is to keep chocolate out of your dog