The reason why a golden retriever would rather go hungry than eat dog food may be because the dog food does not suit its taste, or the dog is a picky eater, which needs to be corrected in time to prevent the dog from developing a picky eating habit. At the beginning, you can prepare some of the food it likes to eat and mix it with the dog food, so that it will eat them all together, and then slowly reduce other foods and increase the amount of dog food. You can also mix some canned food or other meats, vegetables and other foods into dog food to make it more nutritious.