why do dogs eat grass when sick

Dogs eat grass when they are sick for several reasons, but the behavior is not exclusively linked to illness. Some dogs eat grass to help induce vomiting and relieve nausea or stomach discomfort, though fewer than 25% of dogs actually vomit after eating grass. It is a common belief that dogs eat grass to settle their stomachs, but research shows most dogs do not show signs of illness beforehand, and many do not vomit afterward. Additionally, dogs might eat grass because they need more fiber in their diet, as fiber aids digestion and helps with bowel movements. Some suggest that eating grass could help flush out parasites from the intestines, though this is less certain. Other reasons include boredom, liking the taste and texture of grass, or fulfilling an innate omnivorous tendency to consume both plants and meat. In summary, dogs may eat grass when sick to help soothe an upset stomach or induce vomiting, but it is often a normal behavior unrelated to illness, serving other dietary or psychological functions.