Grass contains folic acid, vitamin K, may provide supplemental nutrition for dogs.
Nutrients
The fiber in grass may aid digestion, relieve constipation or gastrointestinal issues.
Fiber
Eating grass triggers vomiting allowing dogs to clear stomach contents making them feel better.
Vomit
Grazing provides distraction when dogs are bored and need mental stimulation.
Boredom
In the wild, dogs foraged on grasses and plants so this may be instinctual scavenging.
Instinct
Some dogs simply enjoy and play with the textures and tastes of grass.
Fun
Pesticides and fertilizers can pose risks so supervise lawn grazing.
Risks