Why does my dog keep eating grass?

There are a variety of reasons a dog might be eating grass, plants, and dirt. Some people propose that dogs might turn to eating grass when they don’t feel well as a way to make themselves vomit, and then feel better. Others dispute this idea. Evidence suggests that most dogs that eat grass aren’t unwell beforehand, or at least they don’t seem so. In fact, fewer than 10% of dogs seem to be sick before eating grass, according to their owners. And grass-eating doesn’t usually lead to throwing up, as less than 25% of dogs that eat grass vomit regularly after grazing.

In my experience, it is usually due to the fact that they are not feeling well. Every dog I have taken care of or have owned that has eaten grass has usually vomited soon after or pooped it out. It's nothing to really be alaramed of as it is a natural thing they do, just keep and eye of them and make sure they are not extremely ill. If they get really sick, take them to a vet. Usually try not to let them eat the grass if possible as well because you don't know what kind of pesticides could have been sprayed