Why Dogs Eat Grass? The Answer Blows Your Mind! | PUPPYFAQS

Why Dogs Eat Grass? The Answer Blows Your Mind!

Why Do Dogs Eat Grass
(Last Updated On: December 15, 2022)

Have you wondered why dogs eat Grass? Dog owners may be surprised to learn that this behavior is widespread in canines.

The reasons for eating grass are varied, including being a natural source of nutrients and aiding digestion. Grass also contains many minerals, which are suitable for your pet’s overall health.

If you notice your dog eating grass often or recently started doing so, take him to the vet immediately to rule out any potential medical issues.

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What is Pica? 

Pica is a medical condition that causes dogs to eat non-food items. The scientific name for this behavior is pagophagia. Pica can be dangerous because some no items, like rocks or sticks, can be poisonous if eaten.

Dogs are meat-eaters (carnivores) and should only be eating grass every once in a while. It’s natural instinct for dogs to eat grass or garden plants. So the Pica caused by eating grass doesn’t come with too many problems.

What do veterinarians say about dogs eating grass?

People theorize that dogs eat grass when they have an upset stomach, but veterinarians disagree. What to do if your dog eats Grass: Veterinarians will tell you to let them eat it and then pick it up before they swallow it.

If your dog eats a lot of grass, you should take them to the vet because that could mean something is wrong.

What does it mean that my dog eats grass?

Dogs eat grass because they like the taste or because they’re trying to relieve an upset stomach. Dogs are carnivores, comprising primarily of meat. So why do dogs eat Grass?

What does it mean when your dog eats grass? Some people think that their dogs are trying to self-soothe or have an upset stomach. But there might be another reason for your dog’s grass-eating.

why dogs eat grass

Should you let your dog eat grass?

Grass-eating is typical behavior in many dogs, but it can cause concern for dogs owners. Understanding why your dog eats grass may help to bring an end to this habit.

Many experts believe that dogs ingest grass to make dogs vomit. This is because they have eaten something that makes them sick, or it could just be the grass they are eating isn’t agreeing with them. 

Some dogs may eat grass to help with an upset stomach, while others may use it as a method of catharsis after they have overeaten or when they are very nervous. According to many experts, the grass itself isn’t harmful to your dog. 

However, lawns covered by toxic pesticides and herbicides are another problem. Thus, to ensure the safety of your dog, the plants and grass in the place where your dog usually plays and has activities shouldn’t contain dangerous pesticides.

The ASPCA’s Animal Poison Control Center has a list of names of toxic and non-toxic plants. Eating grass contaminated with fertilizers or toxic chemicals could cause a severe health concern. Take your dog to the vet to induce vomiting and analyze the stomach contents if you are concerned.

What are the benefits of letting dogs eat grass?

The benefits of eating grass are not always evident unless you look at the long term. What happens is that most dogs eat grass to aid in digestion and to clean their teeth, which can reduce problems with bad breath or other health issues caused by dental disease.

What a lot of people don’t realize, however, is that dogs need to eat grass from time to time. What’s more is that you will probably notice your dog eating grass when they get an upset stomach, and it can help them feel better. 

What happens is that the digestive system in dogs works differently than it does in humans; we tend to eat a lot of processed foods that require more work from our bodies to digest, whereas dogs’ systems are better suited for grass and other items in nature. 

What’s more, dogs also need to ingest some intestinal flora from time to time, which can be done by eating grass or other plants. Better to let your pet eat the grass outside than to try and stop them.

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Why is my dog eating grass all of a sudden?

If your dog is eating grass out of the blue, you may wonder why. It could be your puppy ate grass that irritated your dog’s digestive tract and nibbled on grass clippings. Pet parents should pay attention to grass-eating just in case it’s caused by a dietary deficiency.

Why does my dog eat grass and weeds?

There are many reasons why your dog eats grass or weeds. Most of the time and you should not be concerned. However, it can range from boredom, nutritional deficiency, upset stomach to a severe illness. I’d recommend that if it continues, take your pet to your local vet.

Why do dogs eat grass?

  • Gastrointestinal Upset
  • Nutritional Deficiency
  • Illness (intestinal worms)
  • Boredom
Why Do Dogs Eat Grass

Do dogs eat grass when they are sick?

One of the most common dog behaviors is eating grass. Do dogs eat grass when they are sick? Usually, if your dog eats a bit of grass at the park, it doesn’t necessarily mean anything.

Some pet owners say that they notice their dogs eat more grass if they are experiencing nausea or vomiting. Dogs eat grass when their stomach is upset and may eat grass to make themselves throw up?

Reasons why your dog is eating grass

Some studies have shown that dogs with stomach issues prefer to chew on the blades, while others find it soothing and will do so until their owner or another animal interrupts them.

Dogs will often eat grass for dietary reasons. Grass contains nutrients that may be lacking in their everyday diet, so they are drawn to it. 

Some studies have shown that dogs with stomach issues prefer to chew on the blades, while others find it soothing and will do so until their owner or another animal interrupts them. Other dogs chew grass out of boredom. A healthy dog seldom needs to nibble grass.

Gastrointestinal upset

Your dog eats grass while suffering the digestive upset to try to make it throw up. It’s almost frantic to perform this behavior. It will immediately run outside and eat grass uncontrollably.

It can happen about two times per year, although, for humans, this is a sign of illness. After consuming a small amount of grass, your puppy may vomit. Vomiting is quite normal and expected. 

Eating grass also helps your dog decrease gastrointestinal upset such as bloating, gas, and nausea. It could also be a sign of inflammatory bowel disease.

Nutritional Deficiency

Dogs tend to eat anything that has nutritional value. And the grass is a rich source of fiber or roughage. Besides, there are others such as phytonutrients, potassium, chlorophyll, and digestive enzymes, which a dog needs.

So it’s not strange when your dog eats grass. Dogs choose a few specific types of grass without eating desperately.

Intestinal worms

It’s natural for dogs to consume grass. Still, if your dog is experiencing unusual symptoms such as diarrhea or aggressiveness, grass-eating might be an indication of an underlying illness like intestinal worms.


Some dogs chew grass out of boredom. Dogs and wild dogs, including dingoes, coyotes, and wolves, consider eating grass as normal behavior when bored.

Such boredom might arise when the animal is on a walk, park, or hanging out in the backyard. If your dog is not experiencing any problem, boredom is a good reason for eating grass.

How to stop your dog from eating grass?

As I mentioned, dogs eating grass is normal behavior. You have to determine the cause to be boredom. Below are a few things you can do. If the cause is the tired feeling, perhaps it doesn’t have enough exercise or the outside activities.

Then, you can organize a small event for your dog with your little boys and girls at the weekend. It both provides energy and has a lot of fun memories. It would be best if you took your dog out walking or tossing a Frisbee.

In general, any interactive game can add energy, or a sturdy chew dog toy is also helpful to keep it away from the monotonous feeling.

When it comes to the daily eating routine, you have to reevaluate its diet. You should know that the regular gastrointestinal upset may signify you are feeding your dog the wrong foods. Even the high-quality dog foods you give your dog may be the cause. 

Therefore, it’s imperative to look at all possible reasons. If your dog has a nutritional deficiency, try changing to a new healthy diet high in fiber and either high-protein dog food or low-protein dog food.

It’s best to change entirely from kibble and canned foods to raw dog food. However, if you can’t plan a new diet for your dog, why don’t you ask the help of your holistic veterinarian? 

You can try adding digestive enzymes and probiotics to your dog food. While probiotics take responsibility for reseeding and fortifying the beneficial bacteria in the gut, the digestive enzymes offer your dog what its entrails or the guts should have. 

These are a high source of protease, lipase, and amylase used to process food efficiently. If it’s only a behavior, there is no need to stop your dog from consuming grass. However, you must ensure that your lawn is free of chemicals, herbicides, and pesticides.

Summary: Why Dogs Eat Grass?

Dogs can eat grass without toxic pesticides and herbicides, and that’s only a normal behavior excepting some individual cases.

That can be a sign of suffering the gastrointestinal upset or when your dog wants to remove the intestinal worms. When feeling bored, dogs can consume grass, or their body requires the nutritional value of grass. 

Each case has a different solution. For instance, to get rid of the dull feeling, give it more exercise and physical activities. If you feed it the wrong foods, plan a new diet with more fiber content. I hope you have the answer to the question, “why dogs eat grass?” 

Please let me know what you are thinking in the comment section below. Most dog’s grass-eating behavior is entirely natural to relieve stomach discomfort or gastric reflux. Your dog’s diet should consist of high-quality food and plenty of water.


I'm a self-employed blogger, life-long pet parent, and lover of dogs. I have always loved animals, especially puppies. So when my family got our first dog 15 years ago, it was love at first sight. We named her Sassy because she was so small, cute, and had a sassy personality! Once we got her home, I wanted to know everything about caring for her, so I researched online. Eventually, this led me to create the PUPPYFAQS website, where I write about nutrition, health, and care of puppies and the latest news in the world of puppies. In my spare time, I volunteer at my local shelter, which is run by volunteers who are passionate about helping homeless dogs find their forever homes. If I'm not working or volunteering for dogs, you can find me spending time with my family, friends, and my puppy. I have been writing professionally online since 2009. In addition to PUPPYFAQS, I also write for several other pet-related publications.

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