If a picky Golden Retriever hasn’t eaten for more than two days but has no vomiting or diarrhea, it means he has a poor appetite. The owner can try buying canned meat. If your dog is willing to eat, he is probably a picky eater. If the dog refuses to eat, it may be due to gastrointestinal dysfunction or loss of energy and appetite caused by cooler weather or seasonal changes. You can feed the dog with Guangwei Bao for a few days to regulate it.