Why Does My Dog Eat Grass?
The most googled dog behavior question — finally answered
About 79% of dogs eat grass regularly. Most of them are perfectly fine — but the reasons are more interesting than "they just do."
Key Facts:
- Only about 25% of dogs vomit after eating grass — meaning nausea-induced grass eating is less common than assumed
- Wild canid ancestors ate herbivore prey stomach contents (pre-digested plant matter) regularly
- Grass contains fiber, folic acid, and minerals that can supplement gaps in commercial diets
- Grazing behavior spikes when dogs are bored or under-stimulated
The vomiting theory (dogs eat grass to make themselves sick) is only true for a minority. Most grass-eating is casual, selective, and uneventful. The dog is grazing — not medicating.
The one concern: pesticides and herbicides on grass can be toxic. If your dog eats grass frequently, ensure the lawn (and any parks they visit) haven't been treated with chemicals. Organic grass is fine. Chemically treated grass is not.
💡 Did You Know? Dogs preferentially choose certain types of grass — particularly young, tender shoots — rather than eating whatever's in front of them. This selective grazing suggests purpose, not accident.