Can Dogs Eat Onions

My Dog Ate Onion – What Now?

There are many kinds of food that humans eat which are unsafe for dogs. Onions are not an exception. Feeding your pooch onions can make him seriously ill, whether they are raw, cooked, or in powdered form.

What you Need to Know

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.

Onion ingestion commonly leads to liver damage, asthmatic attacks, allergic reactions, weakness, diarrhea, discolored urine, anemia, vomiting, and even dermatitis.

Onions and Heinz Body Anemia

One of the most critical problems that arises from onion toxicity is canine Heinz Body Anemia, also referred to as Hemolytic anemia. It is a condition that is brought about by the destruction of the dog’s red blood cells that leads to a decrease in red blood cell count; thus, causing anemia.

Symptoms vary depending on the amount of onions the dog has consumed, his size, and the time period for which they have been ingested. It is notable that consuming a large amount of onion in a single sitting is less dangerous that consuming a very small amount over a length of time. Remember this if you’re someone that feeds your dog from the table. Many of the foods we eat contain at least a small amount of onion or onion powder. Read your labels carefully and avoid feeding these foods to your dog.

Common warning signs for Heinz Body Anemia include pale mucous membranes like the gums, brownish or reddish urine color, rapid heart and/or respiratory rate, weakness, and depression. Vomiting, diarrhea, and loss of appetite may also be observed.

What to Do when Your Dog Ingests Onions

It is important that you immediately consult your vet if symptoms occur as a result of onion ingestion. Treatment normally involves inducement of vomiting, carrying out gastric lavage or flushing out the stomach, and making use of activated charcoal to treat not just poisoning but allergic reactions as well. Bathing and drying your dog may also be necessary in cases of skin infection.

Other treatment options include maintaining the dog’s hydration by providing fluid in his bloodstream, applying therapy for liver damage, and calling for blood transfusions if necessary.

Can Dogs Eat Onions?

Onions can cause more damage to your dog than just bad breath. This pungent culinary favorite might add flavor to your dishes, but it contains a toxin that can cause serious complications for dogs.

Are onions toxic to dogs?

Onions contain a toxic principle known as N-propyl disulfide. This compound causes a breakdown of red blood cells, leading to anemia in dogs.

The toxin causes oxidative damage to your dog's red blood cells by attaching to the oxygen molecules in your dog's red blood cells. This reduces the ability of the red blood cells to carry oxygen, and also tricks your dog's body into thinking that the blood cell is an invader. The red blood cell is destroyed in a process known as hemolysis, resulting in hemolytic anemia.

What parts of onions are toxic to dogs?

All parts of the onion plant are toxic to dogs, including the flesh, leaves, juice, and processed powders. Raw or cooked, fried or powdered, onions and the rest of the allium family (garlic, shallots, leeks, and chives) are harmful to dogs.

Onion powder is in a surprisingly wide range of foods, from soups to baby food. It only takes 100 grams of onion (about the size of a medium onion) per 20 kilograms of a dog's weight to cause toxic effects, which means that a 45-pound dog would only have to eat one medium-to-large-size onion to experience dangerous toxicity levels. Since most dogs would happily devour a bag of unattended onion rings or an onion casserole, given the opportunity, this is a serious concern.

Onion and garlic powders are even more potent than fresh onions. It is always a good idea to check the label of any human food we feed to our dogs, and onion powder should be in your list of "don'ts." As a word of warning to those with multi-species households, onions are even more toxic to cats than they are to dogs, so keep both feline and canine tummies free of onion treats.

Symptoms of onion toxicity in dogs

If you think your dog may have eaten onions, there are a few symptoms of anemia to look out for:

• Lethargy


• Weakness


• Decreased appetite


• Pale gums


• Fainting


• Reddish urine

The ASPCA also lists vomiting, elevated heart rate, and panting as signs of onion toxicity.

If your dog is exhibiting any of these symptoms, the best thing you can do to help him is to get him to a veterinarian as soon as possible. Your veterinarian will diagnose your dog's condition based on his symptoms and blood work. If your vet detects hemolytic anemia or the formation of Heinz bodies on a blood smear, and that is combined with a recent history of onion exposure, then all signs point toward onion toxicity.

Other conditions can also cause hemolytic anemia, so it is important to get an accurate diagnosis to ensure your dog gets the best care.

Treating onion toxicity in dogs

The most important thing you can do, as a dog owner, to treat and prevent onion toxicity is to never allow your dog to eat onions. If your dog is suffering from toxic effects, she will probably require veterinary attention. Your veterinarian may induce vomiting, depending on how recently your dog ate the onions, and will offer supportive care until your dog's body can produce enough healthy red blood cells to replace the damaged ones. In severe cases, your dog may require a blood transfusion.

Onion toxicity can be fatal. The faster you get your dog to the veterinarian, the better her chances, and you can prevent onion poisoning from recurring in the future by keeping onion dishes out of the reach of inquisitive noses.

Healthy vegetables for dogs

Onions might be a no go, but there are lots of healthy vegetables that are perfectly safe for dogs that you can feed them instead. Try offering your dog carrots, cucumbers, or green beans as a healthy treat, and check out more of the fruits and vegetables dogs can and can't eat here.