2. Because salted duck eggs contain a lot of salt, it will slow down the blood circulation of human body, increase the burden of normal metabolism of human body, and easily lead to symptoms of hypertension and hyperlipidemia. Moreover, the combination of protein in duck eggs with high salt will affect the normal decomposition and nutrient absorption, increase the burden of gastrointestinal function, and the symptoms of gastroenteritis will appear for a long time.