2. Duck meat is rich in protein, amino acids, fat and various vitamins and minerals. Adding vegetables to stew can play a balanced role in nutrition, making the combination of meat and vegetables more conducive to health. Moreover, there will be a lot of duck oil in duck soup, which floats on the noodle soup, and it is easy to get bored if you drink too much. Adding vegetables can absorb the oil in the soup and reduce the greasy feeling.