What do onions do to dogs?

Normally, in dogs with onion toxicity a moderate number of red blood cells may contain Heinz bodies. As a result, the onion-eater becomes anemic. If a large amount of onions is eaten at one time, the pet may develop a sudden anemia several days following the onion feast. read more

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. read more

While onion toxicity is not a common cause of these signs, consider onion toxicosis if you see these signs and know your pet has gotten into onions recently. If by some freak occurrence, your dog or cat does engage in an onion feast, take him to your veterinarian immediately. read more

No they can't, but learn why dogs can’t eat onions and what you need to do immediately if your dog accidentally eats some. read more