There are many different cases to look at when defining bad foods for dogs but there are guidelines that can be followed to prevent dog pests, dog diarrhea, and many other illnesses that can affect your dog. Routing through trash is another bad idea for your dog and if you discover this is a problem then it should be strictly disciplined.

So what should you avoid to maintain your dog's immune system and keep their digestive system intact? Here are some bad ideas and health effecting foods that may harm your dogs health if you're not careful. Please note that some dog food quality standards may have changed since the writing of this article.

Processed foods

These canned processed foods are nothing but bad news for your dog, after all the processing they are left with not much nutrients for your dog, the quality of meat is poor and other chemicals used in this food make for a bad dog diet and although some rare cases may exist it is generally best avoided.

Chicken Bones

Chicken bones, although you may suspect that it is ok to feed you dog on these leftover bits of meat can be harmful to your dog and when your dog chews the bone it can break and cause a choking hazard and mouth damage.

Chocolate

Chocolate contains caffeine which is considered bad for your dog's nervous system and heart. And also contains sugar and sweetness that is not good for your dog.

Other Bad Foods

Citrus oil extracts, grapes and raisins, rotten foods and mushrooms amongst others.

Be sure to check labels and research anything you are thinking of feeding your dog before hand.