Why is my dog eating grass?


Why is my dog eating grass?

While you may appreciate your dogs attempts to help keep the lawn tidy, you may worry about whether this delicacy is actually good for them, and why they seem so keen on it. A number of theories have been proposed to explain why dogs eat grass, but overall, experts consider it a perfectly normal canine behaviour.

If you are concerned about how much or how often your dog is eating grass, understanding some possible reasons behind it may help to put your mind at ease.


Dogs are naturally curious animals and love exploring their environment. Many owners notice that their pups seem to carefully select specific blades of grass, or are particularly interested in Spring when new shoots are fragrant and sweet. It is quite possible that your dog simply enjoys the taste and feel of certain grasses. If they’re only grazing in small amounts and are otherwise healthy, your pup may just be enjoying all the natural world has to offer.


Have you ever mindlessly reached for the chip packet simply because you’re bored? Dogs that spend extended periods of downtime outdoors may just be munching on a few blades to pass the time. If you notice your dog eating more grass on days that you’ve skipped a walk, think about ways you can help to keep them mentally stimulated – engage them in some new games, or provide a safe and sturdy chew toy to keep them occupied.


One theory on canine grass eating is based on the notion that dogs are naturally omnivorous and, in the wild, would have incorporated all kinds of plant matter into their diets. It’s quite possible that grass eating is simply an ancestral instinct that has persisted in dogs despite their domestication over time.


A common explanation passed around dog owners is that dogs intentionally eat grass in order to medicate themselves – to induce vomiting when they’re feeling ill, or to help with worms. While it isn’t uncommon for dogs to eat grass and subsequently vomit, studies have shown that more often than not, the grass does not come back up.

If you notice that your dog appears anxious to source grass to eat, seems to consume it whole without much chewing, and then vomits, your dog may be trying to settle an upset tummy. If your dog is constantly seeking grass and vomiting, it’s best to check in with your vet.


Another theory that can cause concern for dog owners is that eating grass is a sign of some deficiency in the dog’s diet. While it could be true for some dogs on meat-only diets seeking additional fibre, many dogs these days are enjoying well-balanced, purposefully formulated diets. These diets are unlikely to leave any nutritional deficit that would need to be filled by grass – and yet, dogs are often still grazing.

With CPK personalised meals, you know your dog is getting all the nutrition they need, in the right quantities and at the right times. If you think your dog may still be hungry, reach out to the CPK team for guidance.

But, is it safe?

Don’t worry, a small amount of grass in your dog’s diet shouldn’t do any harm. Just be sure to keep an eye on how much grass your dog is eating and where they’re sourcing it. Steer your dog away from roadside grasses that are likely to be contaminated by vehicle pollution, and be mindful of the weeds, fertilisers and pesticides that could be mistakenly ingested in your own garden.