outdoor
Grass
SAFE
Grass from an untreated lawn is generally safe for dogs to nibble. Avoid grass treated with chemicals.
What to do
Monitor for chemicals and excessive grazing.
When to contact a vet: Contact a vet if your dog eats grass obsessively or has ongoing vomiting.
Symptoms to look for
- vomiting
- diarrhoea if too much
Why
Many dogs eat grass occasionally. It is usually harmless if the grass has not been treated with pesticides, herbicides or fertilisers. Eating large amounts can cause vomiting or gut irritation. Some dogs eat grass when they feel nauseous.
- Safer parts
- {"untreated grass"}
- Parts to avoid
- {"grass treated with chemicals","grass with weedkiller","large amounts"}
- Preparation
- Ensure your lawn is untreated if your dog grazes.
- How much matters
- Small amounts are usually fine.
- Severity
- Mild
Sources
- American Kennel ClubVeterinary information — Nutrition
This answer rests on a single approved source and is queued for further review.
Information reviewed against recognised veterinary and animal-safety sources. Source organisations are independent of Is It For Dogs unless otherwise stated.
Last reviewed 6 September 2026 · next review due September 2027.
Safety classifications are based on available expert and veterinary information. Individual dogs may react differently, particularly dogs with allergies, existing health conditions or specific dietary requirements.
Important: Is It For Dogs provides general information about the safety of foods, plants, drinks, ingredients and other items around dogs. Our information is based on sources we consider reliable and is intended to help dog owners make informed decisions. It is not a substitute for advice from a qualified veterinary professional. Read more
Dogs can react differently depending on their size, age, health, allergies, medications, the amount consumed and other circumstances. An item classified as Safe is not necessarily suitable for every individual dog.
If your dog has eaten something potentially poisonous or dangerous, has eaten an unknown substance, or is showing concerning symptoms, contact your veterinarian or an emergency veterinary service immediately.
Do not induce vomiting or give your dog medication unless specifically instructed to do so by a veterinary professional.