Too frequent feeding of onions, however, can affect your pet's health and vitality

Onions are toxic to canines because of the substance they contain known as thiosulfate. Since dogs do not have the enzyme used to digest this substance, onions become a harmful food for them. 

Although rarely any observable side effects can be seen if your pooch consumes just a minimal amount of onions.

For example, he sneaks a piece of pizza off the counter or steals a bite of your burger, most likely he will be just fine. Too frequent feeding of onions, however, can affect your pet’s health and vitality. 

Additionally, onions contain a compound called organosulfur that results in toxicosi, a condition brought about by poisoning which can be easily absorbed by the dog’s digestive tract.

Onions are a common ingredient found in many of the foods we eat — including foods you might not consider a danger to your pet. 

Make sure these foods do not contain any type of onion before you consider letting your pet indulge: Pizza, Tomato sauce

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