Grass can help to induce vomiting, which can help to get rid of any food or toxins that are causing an upset stomach.
Grass is a good source of fiber, which can help to keep the digestive system healthy.
Grass may contain nutrients that are missing from a dog's diet.
Some dogs simply like the taste of grass.
Eating grass can be a way for dogs to self-soothe.
If a dog knows that eating grass will get their owner's attention, they may do it for that reason.
You should be concerned about your dog's grass eating if: They are eating large amounts of grass.