Generally, adult dogs need to deprive themselves of food and water for 5-6 hours, and puppies need 3-4 hours. Dogs suffering from gastroenteritis will have symptoms such as vomiting and diarrhea. After fasting and water deprivation, they can feed some Clear water and white porridge help dogs regulate their gastrointestinal tract and are conducive to their physical recovery. Pay attention to adjusting your dog's diet and try to feed them some light and easy-to-digest food.