Is eating grass normal or abnormal for your pet ??

We have had many dogs over the years and the only time I remember them eating grass was when they had an upset stomach. It usually starts with them throwing up in the house and then me rushing them outside. When their out there, they immediately start to eat grass. I have heard it soothes an upset stomach in dogs.

They are usually better when they come inside. Honestly though, I have no clue why grass would be something that could settle an upset stomach... hmmmm

Danyel