Why do dogs eat grass?: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Nov. 11, 2026

Photos

A Bernese mountain dog with a black, white, and brown coat lies on green grass with its tongue out, trees visible in the background.

See All Images →

Topics

dog Feeding behaviour Calculating dog years Why do dogs wag their tails?What do squirrels eat?What do ducks eat?What Dog Breed Is Closest to a Dingo?What do whales eat?Why do small dogs live longer?What Is the Smartest Dog Breed?What do giraffes eat?What do ants eat?