Easy Guide to: Why is my Dog Eating Grass?

Why Is My Dog Eating Grass

Why is my Dog Eating Grass?

If you have seen your dog eating grass and asked yourself, why is my dog eating grass? Or maybe, should I let my dog eat grass? Then in this article, I will be going over some of the explanations of why dogs do this.

If you have discovered your dog eating grass, then you are by no means alone. Grass eating is very common for dogs, even wild dogs do it. Here are some of the reasons dogs may eat grass.

Feeling Unwell

One reason is, it is believed that dogs will consume grass to alleviate an upset stomach. The idea is that if a dog is feeling unwell, it will instinctively eat grass and then vomit shortly after. If this is the case, the dog will normally swallow the grass as quickly as they can, barely chewing it. The long grass is believed to tickle their throat, inducing vomiting quickly.                                 

However, studies have been carried out which show that only 25 percent of dogs consume grass, vomit afterward. And only 10 percent of dogs show some form of illness before eating grass.

Therefore, it is only a small percentage of dogs that show any sign of illness before eating grass and vomit after eating grass.

Dog eating grass

Aid Digestion

Another possible reason is thought to be to aid digestion. The grass is a source of fiber, and lacking fiber will negatively affect your pup’s ability to digest their food and therefore pass stools. Therefore, your dog may instinctively know that grass could possibly help their natural bodily functions.

Medical Issue

There are a few Gastrointestinal issues that dogs can suffer from, these include, pancreatitis, gastric reflux, and inflammatory bowel disease. If your dog has a reduced appetite, lack of energy, constipation or diarrhea or frequent vomiting up grass, then seek advice from your veterinarian straight away.


If left alone for long periods of time or if easily bored, dogs may eat grass just for something to do or to pass the time until their owners get home. Dogs that feel neglected by their owners may eat grass as a form of comfort, relieve anxiety, or even gain attention.

If boredom is the reason your dog eats grass, then this is a fairly easy fix. When leaving your dog alone, leave your dog with some food or treats in a puzzle toy, this will provide your pooch with some mental stimulation relieving boredom.

Also, try leaving your dog with a blanket or t-shirt with your sent on it, this may help comfort and reassure nervous or anxious dogs while you are away.

For owners of high-energy dogs, try taking your dog for longer and more frequent walks. As well as this try to make playtime more high energy.    

It’s Tasty

Why is my dog eating grass? There is a good chance that your dog will eat grass for no other reason than they like the taste or how the grass feels in their mouth. Particularly in the spring months when the grass is freshest. 

should I let my dog eat grass


Your dog may eat grass to make up for nutrition they are lacking in their daily meals. However, even dogs that are known to eat a complete balanced diet may still choose to munch on some of the green stuff from time to time.

If you think your dogs’ diet may be the cause of his/her grass-eating, consult with your veterinarian regarding whether they think switching to a high fiber diet would be a good idea.

If you want to add fiber to your dogs’ diet in the form of vegetables, check out the article below to find out which vegetables your dog can and can’t have.

What Vegetables Are Good for Dogs? Ultimate Guide!

Should I let my dog eat grass?

Grass eating for dogs is very common, and it shouldn’t be anything to worry about unless the behavior becomes excessive.

Make sure if your dog does eat grass, that it hasn’t been treated with any pesticides, fertilizers, herbicides, chemicals, or any other kinds of lawn treatments that may be harmful to your pooch. Lawn care products will normally state if they are unsafe for pets.


It may be worthwhile speaking with your vet about protecting your dog from lungworm. A lungworm is a form of parasitic worm which will move through a dog’s body and live in a dog’s heart and major blood vessels which supply their lungs.

These parasitic worms which are transmitted to dogs from eating slugs or snails will often cause the host dog serious health problems. Contact with a slug or snail’s slime trail on food, water, or even a toy can be enough for a dog to become infected.

Lungworm is likely to cause hemorrhages in the intestines, lungs, and liver to name just a few. It can be difficult to diagnose, and if untreated, lungworm can become fatal.

Symptoms of lungworm can include but are not limited to:

  • Difficulty Breathing
  • Coughing
  • Loss of Appetite
  • Tiredness
  • Weight loss
  • Excessive Bleeding
  • Diarrhea
  • Seizures

Save up to 33% with Bundle Deals -  Shop Now

When to contact your vet

  • The grass eating is excessive
  • Your Dog eats grass and not his/her normal food
  • Often eating grass and vomiting
  • Eating grass and appears unwell
  • Eaten grass which has been treated with pesticides or etc


Why is my dog eating grass?

These are the most common reasons why dogs eat grass. If your pooch likes to graze on your lawn, it shouldn’t be cause for concern unless for one of the reasons mentioned above, and as long as your dog has been protected from lungworm.

Remember, in most cases, dogs eating grass is nothing to worry about, and many vets believe that eating grass is normal behavior for a dog.  However, if you have concerns regarding your dog’s grass munching, speak with your veterinarian and have him/her checked over.

Thank you for reading this article on, why is my dog eating grass?

Please take the time to check out my recent articles below!

Recent Articles

Leave a Comment

Your email address will not be published.

Shopping Cart