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HomeDog FoodWhy Dogs Throw Up and Eat Grass? The Ultimate Guide

Why Dogs Throw Up and Eat Grass? The Ultimate Guide

Last Updated on June 21, 2023 by Dogs Vets

Why Dogs Throw Up and Eat Grass? Unraveling the Canine Conundrum


Is your furry friend exhibiting peculiar behavior by ingesting a mouthful of grass and then vomiting?

If so, it’s natural to question: why does my dog throw up and eat grass? It’s a common dilemma that pet owners worldwide grapple with.

This comprehensive guide will delve into the why’s and how’s of this perplexing canine behavior.


Why Dogs Eat Grass?

The first step in understanding this behavior is to understand why dogs eat grass.

As bewildering as it may seem, this is a relatively common occurrence among canines and has a term associated with it: ‘Pica,’ which refers to eating things that aren’t typically considered food.


What’s the Benefits of Dogs Eating Grass?

While it may seem peculiar to us, eating grass comes with several benefits for dogs.

Some theories suggest that dogs eat grass to induce vomiting when they’re feeling unwell, possibly to help remove toxins or unwanted substances from their bodies.

Eating grass can also provide a source of fiber, which can aid in their digestion.

why dogs eat grass
Why dogs eat grass

Additionally, dogs might eat grass out of boredom or because they like the taste. Some believe that this behavior might be inherited from their wild ancestors, who ate grass to rid their bodies of internal parasites.

However, it’s important to note that excessive grass eating can lead to problems, particularly if the grass is treated with pesticides or fertilizers.

Therefore, it’s always a good idea to supervise your dog while they’re outdoors and to consult with a vet if you notice any changes in your dog’s behavior or health.


The Vomiting Conundrum: Should I Be Worried?

Seeing your dog vomit can indeed be a distressing sight. But how long after eating grass will a dog vomit? This varies from dog to dog and is dependent on several factors, including the dog’s health and the type of grass consumed.

Some dogs may vomit immediately after eating grass, while others may not vomit at all.


Should I Let My Dog Eat Grass to Throw Up?

As unsettling as it may seem, sometimes allowing your dog to eat grass could be beneficial. If your dog eats grass and vomits every morning, this could be their way of maintaining their digestive health.

However, this behavior should not be encouraged without consulting a vet, especially in cases involving an elderly dog eating grass and vomiting.


Signs and Symptoms: When to Seek Help

It’s important to monitor your dog closely if they’re eating grass and throwing up foam, as this could be indicative of a more serious underlying issue.

Similarly, if you notice your dog eating grass excessively and vomiting frequently, it’s time to consult with a veterinarian.


Does a Dog Eating Grass Mean Anything?

While it’s common for dogs to eat grass occasionally, it can sometimes indicate other health issues. Dogs may eat grass when they have worms, as the grass helps them expel the parasites.

Similarly, some dogs might eat grass to settle their stomach when they’re feeling nauseous or unwell.


What Should I Do If My Dog Eats Grass?

Now that we’ve explored the reasons behind this behavior, the question remains: how do I stop my dog from throwing up and eating grass?

It’s crucial to consult with a vet to rule out any health issues that could be causing this behavior.

Your vet might recommend dietary changes or certain medications to help manage this behavior.

Feeding Your Dog Post-Vomiting

After a vomiting episode, it’s essential to know what to feed a dog. Providing your dog with a bland diet, such as boiled chicken and rice, can help soothe their stomach and prevent further episodes of vomiting.



While the sight of your dog eating grass and then vomiting might be alarming, it’s important to remember that this behavior can be quite common among canines.

However, if you notice any unusual behavior or symptoms, such as your dog eating grass and vomiting frequently, it’s always best to consult with a vet.

Frequently Asked Questions



Does a dog eating grass mean they are sick?

No, not always. While it can sometimes indicate an underlying issue, many healthy dogs eat grass out of habit or because they like the taste. However, if you notice any other symptoms or changes in behavior, it’s best to consult a veterinarian.


Should I let my vomiting dog eat grass?

If your dog is vomiting and then eating grass, it may be their way of trying to soothe their stomach. However, it’s always a good idea to consult with a vet before allowing this behavior to continue.


What do you feed a dog after vomiting?

After a vomiting episode, it’s recommended to wait a few hours before feeding your dog to let their stomach settle. When you do feed them, offer a bland diet like boiled chicken and rice.


Do dogs eat grass to settle their stomach?

This is one theory, but it’s not entirely proven. Some dogs may eat grass when they’re feeling unwell, possibly to induce vomiting and remove whatever is causing their discomfort.


How do I stop my dog from throwing up and eating grass?

If your dog frequently eats grass and vomits, it’s best to consult with a vet. They may suggest dietary changes or treatments to help manage this behavior.






  1. “Why Does My Dog Eat Grass?” American Kennel Club, www.akc.org/expert-advice/health/why-does-my-dog-eat-grass/
  2. “Why Dogs Eat Grass—a Myth Debunked.” Psychology Today, www.psychologytoday.com/us/blog/canine-corner/201609/why-dogs-eat-grass-myth-debunked
  3. “Dog Eating Grass? Here’s Why.” Purina, www.purina.com.au/dogs/behaviour/dog-eating-grass
  4. “Why Is My Dog Eating Grass?” VCA Hospitals, www.vcahospitals.com/know-your-pet/why-is-my-dog-eating-grass
  5. “Dog Vomiting: What to Know and What to Do When Your Dog Throws Up.” PetMD, www.petmd.com/dog/conditions/digestive/c_multi_Gastritis_Acute_Vomiting.



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