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Can Dogs Eat Green Onions? No, Here’s Why

If you’ve ever dropped a green onion and had to race your dog to pick it up unsure if dogs can eat green onions, then this helpful post is for you! Green onions are toxic to dogs and here’s why!

White, black, and brown speckled dog in front of many green onions.

Onions exist in a variety of types, and one of the most popular types of onions in our food is green onions.

Although you might be tempted to give your dog some of your human food with green onions in it, you might start asking yourself “can dogs eat green onions?”

In this article, we’ll walk you through a brief guide with everything you need to know about green onions for dogs, so you can know whether you should feed them to your pooch or not!

Is It Safe for Dogs to Eat Green Onions?

No, green onions are regarded as toxic to dogs and it’s quite unsafe to feed them to your dogs because they can quickly develop symptoms of toxicity after ingestion.

Unfortunately, this extends to all different parts of the green onion, including the bulb and the top.

For that reason, you need to avoid feeding your dog any food that contains traces of green onions.

Green onions on a white background.

Why Are Green Onions Bad for Dogs?

The reason behind the toxicity of green onion is the same reason why all other plants of the allium family are also toxic for dogs.

This means that all other bulb plants, such as red onions, garlic, shallots, chives, leeks, etc, are also considered toxic for your dog. And if you’re wondering about chives vs green onions, they are both toxic!

The problem with the allium family is that most of them contain an ingredient known as “N-propyl disulfide”.

The problem with this compound is that it’s unmetabolized by dogs and will quickly break down the red blood cells of all dog species.

If that happens, the symptoms may quickly develop into a series of major complications, such as organ failure.

A stack of green onions at a market.

What Are the Symptoms of Green Onion Toxicity in Dogs?

When dogs eat green onions, the signs of toxicity will start showing quickly. Luckily, if you’re able to identify the symptoms quickly and take your dog to the vet, you’ll be able to save them from the toxic effects.

Here’s a quick look at some of the most notable signs of green onion toxicity:

  • Increased heart rate with heavy panting
  • Vomiting
  • Lethargy and obvious weakness
  • Decreased appetite
  • Increased heart rate
  • Dark or reddish urination
  • Pale gums
Green onions growing in a field.

How Much Green Onions Can a Dog Eat Before Showing Symptoms of Toxicity?

The level of green onions toxicity depends on the amount of green onions consumed. Dogs require anywhere between 0.5% to 1% of their body weight of onions to develop noticeable symptoms of toxicity.

This means that a dog that weighs around 20 lbs will show serious signs of toxicity if he or she eats as little as 3.5 ounces of onion.

A small brown and white dog in a field of green onions.

Final Thoughts

This wraps it up for today’s guide that answers the question “can dogs eat green onions?”. As you can see, all plants from the allium family, including green onions, are regarded as toxic for dogs.

Not only that, but the plant can be extremely toxic even in small amounts and the toxicity extends to almost all parts of the plant.

If you suspect that your dog is suffering from onion toxicity, make sure that you contact the dog’s vet as soon as possible!

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