How to Keep Your Pet Healthy. You can choose and plan your own diet, but your pet doesn’t have that luxury, and it eats whatever you’re giving it. Even if you only want the best for your pet, you’re likely to make some common mistakes and feed it some foods that are dangerous for its health and can even kill it. How to avoid food poisoning in your pet? Onion and garlic, for example, have a chemical in them that destroys an animal’s red blood cells, causing anemia, which, in severe cases, can do serious damage to the internal organs. Bones are a great source of minerals and nutrients for your canine companion, but poultry bones, like chicken or turkey, as well as pork bones and any cooked bones are strictly forbidden. The same goes for coffee, chocolate, ice cream, and tomatoes.