Reasons Why Dogs Eat Grass

You’re taking a walk, and suddenly your dog starts devouring a patch of grass. It’s a little gross to watch, and you can’t help but wonder: Is this normal? Should I be worried? What gives? To get to the bottom of why dogs eat grass and what it might mean, we talked to experts.

They’re not feeling well.

If your dog has an upset stomach and is eating grass, it’s likely that he’s not feeling well. When dogs eat grass, they’re doing so because of a variety of causes. The most common reason for your dog to eat grass is if he has an upset stomach or diarrhea, in which case the grass may help settle his stomach and aid in digestion.

It’s a nutrient deficiency.

The most common reason dogs eat grass is to supplement their diet with nutrients that aren’t getting enough of in their regular food. Grass contains many vitamins and minerals, including vitamin C. It’s also a good source of fiber.

If your dog eats grass often, it could be a sign that he has a nutritional deficiency in his diet (especially if he eats only the green parts and leaves behind any roots or dirt). Some of the best ways to ensure your dog gets all the nutrients he needs are:

  • Feeding him fresh vegetables like carrots, broccoli and peppers as treats (use caution when giving vegetables)
  • Adding supplements to his food

They think they're supposed to eat it.

They think they’re supposed to eat it.

You might be surprised to learn that dogs are carnivores, meaning they need a higher protein diet than what is available in fruits and vegetables. Dogs eat grass for a number of reasons:

  • They may eat grass because it’s part of their natural diet. In the wild, dogs would eat grass to aid in digestion.
  • When your dog has eaten something they shouldn’t have (like chocolate), they may eat grass as an attempt to rid themselves of the toxins.
  • If you feed your dog dry kibble or canned food, eating some fresh grass might help him digest his food more easily.

It’s in their genes.

Dogs are descended from wolves, who graze on grass to help digest their food and aid in digestion. The same can be said for dogs—they are also carnivores and need fiber to aid in digestion as well. When a dog eats grass, it helps stimulate the gut, which allows for better absorption of nutrients needed for energy and bodily function. If you’ve ever seen your pup eating grass after he’s eaten a large meal, this is why!

If your dog has recently been constipated (or had an episode of diarrhea or vomiting), he may need some extra help breaking down his food so that it doesn’t get stuck inside him. Eating grass can aid with this process by stimulating his gut lining and helping him digest anything that may have gotten stuck along the way.

They're bored.

They’re bored.

Boredom is one of the most common reasons for dogs eating grass and other plants. If your dog has nothing else to do, he might be able to find some relief in munching on greenery.

Dogs that are bored often exhibit other signs of boredom as well, such as chewing on furniture or shoes. Dogs that eat their own poop may also be trying to find something fun to do—and not necessarily because they’re hungry!

To help your dog be less bored, consider giving him more toys or treats each day, increasing exercise time (which can also help with other behavioral issues), and providing interesting distractions like puzzle toys or games of hide-and-seek with treats.

It’s fun! It just tastes good!

Dogs eat grass for many reasons. First and foremost, it tastes good! Dogs have a much stronger sense of taste than humans do. They also have a stronger sense of smell, which makes eating grass an even more exciting experience for them. In addition to this, when dogs eat certain kinds of grasses they may be able to detect the presence of other animals (such as mice) who have passed through that area recently.

This is why your dog might eat grass in your backyard but not at the park: The soil at your home may be better-suited for growth than that at the park—and therefore more nutritious for your dog’s tummy!

Is It Harmful To Dogs To Eat Grass?

Is It Harmful To Dogs To Eat Grass?

It’s not typically harmful to dogs to eat grass, but if they eat a lot of it, it might upset their stomach. In addition, if your dog has been exposed to pesticides or other lawn care products, those could make him sick as well.

Although dogs don’t get worms from eating grass, they do become infected with them if they eat feces from other dogs. Some intestinal diseases, such as parvovirus, can be passed from dog to dog via the fecal-oral route. Parvoviral enteritis can be fatal. Dogs can die from this disease if they are not vaccinated.

In addition to worms, puppies may be infected by tapeworms and roundworms. These intestinal parasites cause serious health problems in puppies and adult dogs. Anemic puppies are more prone to dying from tapeworm infection. Infected adults are less likely to die than non-infected adults.

If your dog eats grass but keeps it down, there are probably no harmful effects. You just have to keep an eye on him in case he experiences any of the symptoms described above.

However, if you notice that your dog keeps throwing up after eating grass or if he stops eating for more than a day or so, take him to the vet. He may have a gastrointestinal problem that requires treatment.

How To Stop Your Dog From Eating Grass

How To Stop Your Dog From Eating Grass

If your dog is eating grass in order to get something out of his system, ease their stomach pain, or help with pregnancy, you should be able to safely let them eat some grass without worrying too much about the side effects.

If your dog is eating grass because he’s getting bored or thirsty, providing him with some toys or a bone to chew on should solve the problem.

If your dog is eating grass because he’s had too much energy all day and now needs some way to release it, you can try taking him for a walk or playing with him so that he burns off some of his excess energy. If this doesn’t work, try some obedience training to tire him out.

Owners should take their pets for regular exercise and grooming. Dogs that need mental stimulation should get toys with puzzles and games.

If your dog is eating grass because he’s not getting enough nutrients from his diet, you should try feeding him a better quality food that’s better suited to his nutritional needs. If this doesn’t work, consider giving him a multivitamin or mineral supplement to make up for the nutrients he’s missing.

For instance, if your dog was eating grass because he was bored, then he wouldn’t need any extra vitamins or minerals. However, if your dog was consuming grass as part of his regular diet, then he probably does need more nutrition.

If your dog is eating grass because he’s been left outside too much or fed table scraps, make sure to do something about it. Keeping your dog chained in the yard with no access to water makes it hard for them to stop when they’re thirsty or bored.

Giving your dog table scraps contributes to a poor diet, which can lead to side effects such as grass-eating. If you need help training your dog or dealing with any behavioral problems, you might want to consider hiring a professional dog trainer or animal behaviorist who can help you work through the issue and come up with a training plan that works for both of you. A balanced diet, plenty of exercise, and good socialization will also go a long way toward keeping your dog healthy and happy.

If you can’t determine the cause of your dog’s grass-eating, take him to the vet for a check-up. While it’s normal for dogs to eat grass occasionally, if your dog is eating grass frequently and it doesn’t seem to be a problem for him, you should find out if something else might be going on.

If your dog is eating grass, there may be an underlying cause that you should look into.

If your dog is eating grass in large amounts, it’s important to have him checked out by a veterinarian. Eating grass can indicate illness or a serious nutritional deficiency if it’s not being done as part of normal chewing behavior.


If your dog eats grass, don’t be alarmed. Many dogs do and as long as they’re not vomiting too much or having stomach problems, it’s probably fine. You may want to talk with a vet about what it could mean for your dog’s health. Maybe they are lacking something in their diet or just trying to entertain themselves while you’re away at work all day. Whatever the reason, there are plenty of ways to help curb this behavior so you don’t have to constantly worry about cleaning up after it!


Why do dogs eat grass?

Dogs may eat grass for a variety of reasons, such as boredom, thirst, hunger, or to get something out of their system. If your dog is eating a lot of grass and you’re not sure why to take him to the vet for a check-up.

Is it okay for dogs to eat grass?

Dogs should avoid eating grass, as it may cause them harm, but if they do eat it, they shouldn’t suffer much damage. Lawn care products such as pesticides and herbicides can lead to signs of illness or injure themselves.

What are the dangers of dogs eating grass?

If your dog eats too much grass, he may become sick or injure himself. Excessive amounts of fertilizer and herbicide in the grass can cause dogs to get very ill or even kill them. Dogs who eat too much grass might throw up or suffer from diarrhea.

How can I stop my dog from eating grass?

There are a few things you can do to stop your dog from eating grass, such as providing him with toys or bones to chew on, taking him for regular walks and exercise, or obedience training. If you can’t determine the cause of your dog’s grass-eating, take him to the vet for a check-up.