What happens if a dog eats too much grass?

Eating grass is a common behavior in dogs and usually is not a big problem. Some dogs eat grass to relieve indigestion or stomach discomfort; grass can stimulate vomiting and help clear the gastrointestinal tract. But if a dog eats too much grass, it may cause diarrhea, vomiting, intestinal blockage, and other digestive discomforts.

In addition, if the dog eats plants such as datura or periwinkle, it may be poisoned. Finally, some dogs with oral diseases such as tooth decay and gingivitis may chew grass more often, which can worsen the disease.