Why Do Dogs Eat Grass when Sick and Vomit?

Why do dogs eat grass and vomit?

Do dogs eat grass when they feel sick or do they feel sick after eating grass? Why do dogs eat grass and other plants? While dogs eat a lot of strange things, the question “why do dogs eat grass?” is quite common. Dogs graze for a wide variety of reasons. We explore these as well as why dogs vomit after eating grass, why they appear sick before and after as well as what to do to prevent the behavior.

Why Do Dogs Eat Grass

Why do dogs eat grass? Wonder no more. The reasons why dogs eat grass are different. Each dog may nibble on grass to suit their needs as may be necessary at the moment. The reason for grass consumption may not always be the same in a specific dog. Here are some pointers to help you decode the reason for their indulgence.


This is a condition in which dogs eat non-food items. Your dog could be eating grass simply because they can. They could be attracted to it by the taste or the texture. The condition could become obsessive with time and the dog may be seen nibbling on grass blades any time they are out in the yard.

Other strange things your dog may indulge in when they are suffering the condition may include general dirt, soil, other plants and paint chips as well as. In most cases, pica is driven by a dietary deficiency or boredom. You could alleviate this by exercising your dog more and leave him with toys whenever he is alone.

Upset Stomach

A general point of concern among dog owners usually is whether dogs eat grass to vomit or if they vomit because they have eaten grass. Experts claim that less than 25 percent of grass eating dogs vomit as a result while only less than 10 percent of those eating grass appear sick prior to engaging in the act.

Dogs that eat grass to induce vomiting may simply do so instinctively. The fact that they do not have the necessary enzymes meant to digest the grass means that a reasonable amount, when consumed, will result in puking.

Investigate Territorial Invasion

According to petful.com, some dogs will sniff and eat grass that has been marked so as to taste whom it is that has been invading their territory.


Just like humans have preferences, so do dogs. Some of them may simply crave the taste of grass and derive pleasure from grazing. Where this is the case, the dog does not just eat any type of grass. They will appear to only eat some blades that suit their taste while leaving those that are not out.

Nutritional Supplement

Dogs with nutritional deficiency may eat grass to get additional nutrients that they may be lacking. Grass has additional nutrients and a dog suffering mineral imbalance or nutritional deficiency could seek to supplement by eating grass. Where it is suspected that this could be the reason why your dog is eating grass, you could supplement the inadequate nutrients by giving them vegetables.

Potatoes, cauliflower, and carrots go well with dogs and are a source of much-needed nutrients. Add these to their regular diet and see if your dog stops eating grass. If you feed your dog a premium diet, you may have to consider changing to a higher quality food that has all the nutrients.

Why Do Dogs Eat Grass and Throw up, Puke or Vomit?

Do dogs eat grass to throw up or do they throw up because of eating grass? Unlike humans who have the ability to run to a drug store and get something to help with stomach upsets, dogs only have their instincts to trust. When they ingest inappropriate things that need to be eliminated, they may eat grass with the hope that it will help eliminate the unsettling elements found in their gastrointestinal system.

Why Do Dogs Eat Grass when Sick or their Stomach is Upset?

When a dog is hungry, the presence of bile in the stomach may be upsetting. Likewise, if they ingest things they are not meant to or when something does not auger well with their digestive system, they may be left feeling sick and nauseated. Their stomachs could also hurt. This could see them eating grass to help in eliminating whatever it is that is making them sick. As long as this is not done in excess and only happens once in a while, it should be considered normal dog behavior. If it is too frequent and you are concerned, seek the intervention of a veterinarian.

Why Do Dogs Eat Grass Sometimes

A dog that only eats grass sometimes should not be much of a concern to the owner as that one that does it frequently. If the consumption is not frequent, the problem is not nutritional deficiency and the habit is also not obsessive. The most probable cause is that the dog is feeling sick and needs to vomit. It could also be that they are bored and only engaging in the behavior to keep themselves occupied. It is also possible that they are doing it simply because they can.

Why Does My Dog Eat Grass Every Day

As indicated above, a dog that does not eat grass frequently should not cause much worry. However, you should be concerned if your dog eats grass every day. It could be they are engaging in the behavior out of obsession. Additionally, they could be suffering from significant dietary deficiency. Whether they vomit or not after eating the grass, see your veterinarian so they can find out why your pup is consuming grass every day and offer relevant solutions.

Is Dogs Eating Grass Harmful?

In most cases, dogs eating grass is considered normal behavior. This means it is typically safe for dogs to engage in the grazing routine once in a while. However, the same becomes dangerous if they do it quite frequently.

Additionally, grass that has been treated with pesticides, whether eaten regularly or a few times, is dangerous. Where there is a possibility for your dog to eat other plants such as mushrooms when grazing, keep your dog away. Wait for the recommended time as advised by product manufacturers to lapse before letting your pooch out.

How to Prevent Your Dog from Eating Grass

If you are concerned about your dog’s grass eating, there are a few things you can do to reduce the likelihood of the behavior. These include:

  • Eliminating an empty stomach and thus getting rid of bile by increasing the amount of fiber present in the dog’s diet. Pumpkins, carrots and green beans are some of the healthy choices available.
  • To ensure that your dog’s stomach does not get empty at any moment, offer them small meals throughout the day rather than feeding them once. You could also offer them before-bed snacks to prevent accumulation of bile through the night.
  • Stress and boredom are likely to trigger grass eating behavior. Whenever you are leaving your dog alone, ensure he has enough toys. In case your pooch suffers separation anxiety, learn different ways of dealing with it.
  • Remember to always talk to your veterinarian when you have any concern about the well being of your pet.


1 Comment

  1. My bad has been sick & is eating grass like a horse trying to
    Eat a lot of it to be sick again

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