What Happens If My Yorkie Eats Onions? (Solved!)

Eating onions can cause your Yorkie to become anaemic as a chemical in onions, called “N-propyl disulfide” breaks down their red blood cells. If ingested in large quantities, call your local veterinarian. 

In this article we will explore everything you need to know about giving your dog onions, including why it is bad for their health, how much onion is bad for them and how to treat your dog if they have consumed onion.

What happens if my Yorkie eats an onion?

If your Yorkie eats an onion you should first try to make them throw it back up. However, if this is not possible then you will need to keep a very close eye on them and take them to the vet if necessary.

The reason why onion is so dangerous for dogs is because it affects their red blood cells. Onion contains something called “N-propyl disulfide” which causes your dog’s red blood cells to break down.

The reason why their red blood cells break down is due to oxidization when the chemical attaches to the oxygen in your Yorkie’s red blood cells.

If untreated this breakdown of red blood cells can lead to anaemia and other health problems.

How much onion is bad for a dog?

Onion is possibly one of the worst foods that your dog can eat because it is toxic in such small quantities. 

For example, your dog will need to ingest only 0.5% of their total body weight in onion in order for it to become toxic. 

As an example, if your Yorkie weighs 7 pounds then this is only 0.5 ounces before the onion becomes highly toxic to them. 

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How do I treat my dog if they have eaten an onion?

If you notice that your dog has eaten some onion, and you are quick enough to catch them in the act, then the very first thing you should do is to try and make them be sick.

By making them be sick you are removing the onion from their system before their body has a chance to digest it, potentially stopping further health issues.

If enough time has passed, or you cannot make your dog throw up the onion, then you will need to call your local vet for advice on how to handle the situation.

In some cases, they may simply suggest that you keep watch over your dog to look out for any symptoms. But, if your dog has ingested a lot of onion then they may call them in for an inspection.

How long after eating an onion will my Yorkie get sick?

Dogs will not typically be sick straight away after eating an onion as their bodies will need time to digest the food. However, this process will normally take anywhere between 1 and 3 days.

Within 1 to 3 days you may notice that your Yorkie begins to have stomach problems and is vomiting. In this case, you should take them to the vets to get checked out and given the necessary medication. 

If you notice these symptoms but do not take them to the vet their condition can begin to deteriorate and in some cases can lead to death.

How do you make your Yorkie throw up after eating onions?

You should not try to make your Yorkie throw up yourself if they have eaten onions. The safest thing to do is to call your vet to inform them of what happened before making your way there with your dog.

As long as you get to the vet’s within a couple of hours from the incident then your vet should be able to make your dog sick so that they do not begin to digest the onions.

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Additionally, your vet may be able to give your dog activated charcoal which will help their body to absorb some of the toxins from the onion.

What are the signs of onion poisoning in dogs?

There are a number of symptoms to watch out for if you suspect that your dog has onion poisoning. These are:

  • Vomiting
  • Diarrohea 
  • Drooling
  • Loss of appetite
  • Stomach pain
  • Lethargy

If you notice any of these signs it may also be a cause for concern for a number of other health issues. Get in touch with your vet as soon as possible.

Can dogs eat onion powder?

No, dogs cannot eat onion powder. It does not matter how the onion is processed, whether it is fresh, dried or ground into a powder, it is still toxic for your dogs.

Onion powder is a particularly popular seasoning in food that is prepared for human consumption and so you should always be careful and check the ingredients before feeding anything to your dog.

Can dogs eat fried onion?

Not only are onions a bad food to give to your dog, as they are toxic, but any type of fried food is also extremely unhealthy for your dog.

When preparing any food for your dog you should always try to eliminate using added fats, such as butter or oil, as this offers no extra nutritional benefit to your dog.

For this reason, any fried food, especially fried onions, should be avoided.

Can onions kill dogs?

In extreme cases, yes, onions can kill dogs. The reason for this is that a chemical in the onion attacks your dog’s red blood cells, causing anaemia.

In cases where a lot of onion has been consumed, and the dog goes without treatment, it is very possible that the dog can die from eating onion. 

Are cooked onions bad for Yorkies?

Yes, cooked onions are bad for Yorkies. Even if you prepare the onion in a healthy way, e.g. roasting without oil, they are still bad (toxic) for dogs. 

Avoid giving your dog onion in any form.

When should I see a vet after my Yorkie ate an onion?

You should see a vet as soon as possible after your Yorkie has eaten an onion. This is because they will be able to help your dog be sick, ridding their body of the onion, or administer treatment as needed.