What it means when your dog eats grass
Spoiler — usually nothing to worry about.
Nov 14, 2025 · 4 min read · Dr. Maya Hart, DVM
Dogs eat grass. It's one of the most common pet behaviors and one of the most searched questions I get.
The short answer: most of the time, it's totally fine. Dogs eat grass for a few reasons.
1. They like it. Yes, really. Some dogs just enjoy grazing. There's no nutritional deficit, no missing nutrient, no hidden illness. They just like the texture.
2. They're bored. Puppies and adolescent dogs in particular will chew grass and dirt and sticks if their world feels too quiet. Walks, sniff time, and chew toys all help.
3. They're trying to vomit. If your dog eats grass frantically and then vomits, that's a signal — they may have a mild stomach ache and are trying to bring it up. After they vomit, they're usually fine within an hour.
The four times to call us:
· If they're eating grass and refusing food for more than 24 hours.
· If they're vomiting more than twice in 12 hours.
· If you see blood in the vomit or stool.
· If they're eating grass treated with pesticides or herbicides — rinse their mouth and call us.
Otherwise: relax. They're being a dog.
