How do dogs show sadness?

Ask yourself if you're giving your dog frequent human treats during the day. If so, this may be part of the problem. If your dog has been given bites of filet mignon during the day, he's going to be less than enthusiastic when you put a bowl of dry dog food in front of him. Question family members to make sure they aren't contributing to the problem by giving your dog treats. Could your dog be stealing food or raiding your garbage can? This can cause digestive upsets which can reduce a dog's appetite for his regular food. Plus, it can be downright dangerous if your dog ingests the wrong food. Be sure to keep garbage cans out of reach of your dog