Why Do Dogs Eat Grass? Should You Be Worried?

If you’ve ever watched your dog suddenly stop during a walk and start eating grass, you’re certainly not alone.

Grass eating is a common behaviour among dogs, and there isn’t always one simple explanation for why they do it.

Sometimes it’s completely harmless. Other times, a change in eating behaviour can be worth discussing with your veterinarian.

Why do dogs eat grass?

There are several possible reasons.

Some dogs simply seem to enjoy the taste or texture of grass.

Others may eat grass because they are curious, bored or looking for something interesting to do.

Dogs also explore the world with their mouths, so eating grass can simply be part of normal exploratory behaviour.

Does eating grass mean my dog is sick?

Not necessarily.

One common belief is that dogs eat grass specifically because they have an upset stomach and want to make themselves vomit.

However, this isn’t necessarily the case for every dog.

If your dog occasionally eats grass but otherwise appears healthy, eats normally and behaves normally, it may not be something to worry about.

When should you be concerned?

Pay attention if your dog’s grass eating is accompanied by other changes, such as:

If you notice these symptoms, contact your veterinarian.

Be careful where your dog eats grass

One of the biggest concerns isn’t necessarily the grass itself.

Outdoor areas may contain pesticides, herbicides, fertilisers or other substances that could be harmful to pets.

Dogs may also encounter contaminated soil or animal waste.

Try to prevent your dog from eating grass in areas that may have been treated with chemicals.

Could boredom be involved?

Sometimes dogs simply need more things to do.

If your dog spends a lot of time searching for things to chew, investigate or eat, consider whether they’re getting enough mental stimulation.

Training, games, walks and safe enrichment activities can help provide more appropriate outlets.

Should you stop your dog from eating grass?

There’s no universal answer.

If your dog occasionally nibbles grass and remains completely healthy, it may simply be a normal behaviour.

However, if they are eating large amounts, doing it obsessively or showing other symptoms, it’s worth speaking with a veterinarian.

Understanding your dog’s behaviour

Dogs do plenty of things that seem strange to us.

The important thing is to look at the bigger picture.

A single unusual behaviour doesn’t necessarily mean something is wrong, but a sudden or persistent change in behaviour deserves attention.

Knowing what is normal for your individual dog makes it much easier to notice when something genuinely changes.