If the dog does not eat dog food, the dog owner should first check whether the food he prepared does not meet the dog's appetite, or the dog food is too low-quality, contains few meaty ingredients, has poor palatability, and the dog is not interested.

When a dog’s gastrointestinal absorption ability is poor and the body lacks digestive enzymes to break down food, the food it eats cannot be digested well, and it will become thinner and have a poor appetite.

For unvaccinated dogs, the main concerns are parvovirus, canine coronavirus infection, etc., which will generally cause severe vomiting and diarrhea, and the dog will not eat. For older dogs, it may be due to liver and kidney failure or uterine diseases that the dog does not eat.