Why do dogs eat grass?

Dogs usually eat grass because they like the taste of it. Grass actually acts as a stomach irritant and a binding agent. The grass will bind itself to certain toxins found in a dog's stomach. This is a way of ridding the toxin from your dog stomach when they expel the grass. You should be careful of the grass your dog is exposed to; fertilizers and pesticides on grass can make dogs very sick or even cause death if they ingest the grass.