Are There Reasons Why My Dog Eats Grass?
When it comes to peculiar pet behaviours, one of the most commonly observed in our furry friends is their penchant for munching on grass. Many dog owners have wondered about this: Why do dogs eat grass? Is it an innate dietary need, or is it a sign of something more troubling? In this article, we’ll delve into this behaviour, examining the reasons behind why dogs eat grass, whether it’s when they’re sick and why some end up vomiting afterward.
Why Do Dogs Eat Grass? The Basics
Historically, dogs in the wild often ate plant material as a part of their diet. This is because dogs, unlike cats, are not strict carnivores. Their dietary habits lean more toward being omnivores, meaning they can consume both meat and plant-based foods. It’s possible that the domesticated dogs of today have retained this ancestral behaviour.
Moreover, some theories suggest dogs might eat grass for the following reasons:
- Nutritional Needs: Grass contains essential nutrients that a dog might crave, especially if they’re missing from its regular diet. This includes fibre, which aids in digestion, and provides other minerals.
- Instinctual Behavior: Eating grass might help dogs purge their system if they’re feeling unwell or if they’ve eaten something that doesn’t sit well.
- Taste and Texture: Some dogs might simply enjoy the taste or texture of grass, much like humans enjoy certain foods for their texture or crunch.
Why Do Dogs Eat Grass When Sick?
One of the more widespread beliefs is that dogs eat grass when they’re feeling unwell. The thought is that this behaviour is a natural remedy that helps them induce vomiting. But is there any truth to this?
- Natural Emetic: The coarse texture of grass blades can irritate the dog’s throat and stomach lining, potentially leading to vomiting. If a dog has consumed something toxic or indigestible, this act of vomiting can be beneficial in expelling the harmful substance.
- Digestive Aid: For dogs that don’t vomit after eating grass, the added fibre might help with bowel movements, allowing them to pass anything uncomfortable.
Only 10% of dogs who eat grass were unwell at the time of grazing. It’s important to note that not all dogs vomit after eating grass, and not all dogs that eat grass are sick beforehand. This leads us to our next point.
Why Do Dogs Eat Grass and Vomit?
As mentioned earlier, not all dogs that munch on grass end up vomiting. In fact less than 25% of dogs vomit after eating grass. However, for those that do, here are some potential explanations:
- Irritation from Grass Blades: The rough texture of grass can irritate the lining of a dog’s stomach and throat, leading to vomiting.
- Rapid Consumption: If a dog gulps down large amounts of grass quickly, this sudden bulk of roughage can cause an upset stomach, leading to vomiting.
- Toxins or Pesticides: Some grass might be treated with chemicals harmful to dogs. If they consume such grass, it’s only natural they’d feel unwell and throw up.
- Underlying Medical Issues: If they repeatedly eats grass and vomits, it could be a sign of a more serious underlying issue, such as gastroenteritis, inflammatory bowel disease (IBD), or other digestive ailments.
While the act of a eating grass might seem odd to many pet owners, it’s a relatively common behaviour. (1) Whether it’s driven by instinct, dietary needs, or simple curiosity, it’s essential to observe your pet and ensure they’re not ingesting harmful chemicals or showing signs of distress.
If you notice your dog frequently eating grass and vomiting, or if they exhibit any other concerning behaviours, it’s always a good idea to consult with your veterinarian. They can provide guidance tailored to your pet’s specific needs and ensure they’re healthy and happy.
Remember, our canine companions might not always understand what’s best for them. It’s up to us, as their caretakers, to provide them with the best possible environment, care, and attention.
In short eating grass is not an abnormal behaviour for dogs and not indicative of an issue with their health. (2)
