Why Do Dogs Eat Grass? Facts for UK Dog Owners

It can look unusual when your dog stops during a walk to nibble on the grass. Many dog owners in the UK ask why this happens. According to animal welfare charities, eating grass is usually nothing to worry about but there are important points every owner should know. (thekennelclub.org.uk)

Normal Dog Behaviour

Many dogs eat grass occasionally. Surveys in the UK indicate that this is widespread and not necessarily a sign of illness. Dogs are omnivores which means they naturally eat both meat and plant matter. Wild canines such as wolves also eat grass, which suggests it is instinctive. (britannica.com)

Possible Reasons

Here are the main explanations for why dogs eat grass:

• Taste and texture: Some dogs enjoy the flavour or feel of grass. (bluecross.org.uk)

• Instinctive behaviour: Eating grass is observed even in wild canines. (britannica.com)

• Seeking fibre: Some dogs may eat grass to increase fibre intake. Diet changes that improve fibre can reduce this behaviour. (petmd.com)

• Boredom or lack of stimulation: Dogs may chew grass when they are bored. (dogstrust.org.uk)

• Upset stomach: It is sometimes thought dogs eat grass to induce vomiting but research shows fewer than 10 per cent of dogs vomit because of this habit. (thekennelclub.org.uk)

When Eating Grass is Harmless

If your dog eats grass occasionally, is otherwise healthy, and the grass is free from chemicals, the behaviour is generally harmless. Dogs Trust confirms that most dogs who eat grass are not in danger. (dogstrust.org.uk)

When to Seek Advice

Contact a vet if you notice:

• Eating large amounts of grass frequently. (thekennelclub.org.uk)

• Vomiting often after eating grass. (akc.org)

• Loss of appetite, lethargy, or digestive upset. (dogstrust.org.uk)

• Grass that has been treated with herbicides, pesticides, or other chemicals. (bluecross.org.uk)

Tips to Support Your Dog

• Provide a balanced, high-quality diet to ensure fibre needs are met.

• Offer mental and physical stimulation such as walks, puzzle toys, and varied environments.

• Supervise your dog outdoors and avoid areas treated with chemicals.

• Offer safe alternatives for chewing or foraging, such as dog-friendly herbs or enrichment games.

Conclusion

Eating grass is usually a normal behaviour for dogs. Occasional grass eating is harmless. If it becomes frequent or is accompanied by other health issues, consult a vet. Understanding your dog’s behaviour and providing proper nutrition will support a healthy and happy life. Chef Woof recommends observing your dog, keeping their environment safe, and feeding them a balanced diet.