If your dog is picky about food and still refuses to eat dog food after being hungry for 4 days, it may be a health problem. If you are feeling unwell, you should take it to a veterinarian for examination; it may also be a taste preference, so you can try changing dog food.

It may also be due to irregular eating habits or too many snacks. You need to eat regularly and stop supplying snacks. You can also increase the amount of exercise, try wet food, heated dog food, and add complementary foods. At the same time, keep the environment quiet and observe their emotions to ensure there is no stress or anxiety. If the problem persists, it is recommended to consult a veterinarian for professional advice.