Most dogs will eat anything and everything without a moment’s hesitation. On the other hand, there are a few dogs who just don’t show that much enthusiasm for food when it’s put in front of them. It can be concerning when your dog doesn’t show interest in his food, turns his nose up, and walks away.
Stop feeding extra foods and treats and stick to a daily scheduled feeding routine. Put down the proper amount of food at a regular time each day and wait. If your dog won’t eat the food, try again the next day. It won’t hurt for a day or two to go by without him eating, as long as he’s in good health and not a very young animal (or diabetic). This will help encourage his appetite for his dog food, and after a short while he should learn that this food is the only food he will be getting every day.