Why Does My Dog Eat Grass? (Vet’s Advice)

This is one of the most commonly asked questions by dog owners and the truth of the matter is that there is no straightforward answer. It is a well-known fact that lots of dogs eat grass and veterinarians often consider it to be normal behavior.

Why does my dog eat grass and dirt?

There are several possible reasons why your dog is eating grass. Some people think that dogs eat grass to make themselves sick.  Another common question is ‘does my dog eat grass for fiber?’ It’s true that grass provides indigestible fiber, but if your dog’s stools are fine then they are probably getting enough fiber in their diet.

It is possible that when some dogs eat grass it is simply out of boredom so always make sure your dog has plenty of enrichment in the form of exercise or human interaction. Many dogs likely eat grass simply because they like the taste!

Does it mean that my dog is ill?

No, not necessarily. Several studies have shown that very few dogs are actually ill before they eat grass. There are also plenty of dogs out there who regularly eat grass without ever vomiting afterward.

So why does my dog eat grass and throw up?

This may be a sign that your dog is eating excessive amounts of grass, either out of habit or because he has a medical condition. Talk to your veterinarian to check that your dog does not have an underlying illness.

Should I stop my dog from eating grass?

If your dog occasionally eats a small amount of grass, and it does not make him sick, then do not worry about trying to stop him. Ensure that the grass he is munching on has not been treated with any pesticides or herbicides. It is also important to check that he is up to date with his parasite control, as grass can be contaminated with various worms, including lungworm.

If your dog’s grass-eating habit becomes excessive, or it is causing him to vomit, then you may want to try and stop him. One way to do this is by offering him a distraction, leading him away from where he was nibbling, and then rewarding him. Never punish your dog for eating grass.

Does my dog need more fiber?

It’s unlikely that your dog is eating grass for the fiber content. However, if your dog’s stools are regularly too soft or too hard, they may need more fiber in their diet. You can talk to your vet about a fiber supplement or changing your dog’s diet to a high-fiber alternative.


So why do dogs eat grass? The reason there is no definitive answer is that no one knows for sure! Whether it is instinct, for enjoyment, out of boredom, or to try and meet a nutritional deficiency, one thing is for sure – it’s a very common dog behavior and not always one to worry about.

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