For patients with low cuprocyanin, the possibility of hepatomegaly or other hepatobiliary diseases is often considered. For the specific value of copper blue protein, if the copper blue protein is less than 80mg/L, it is considered that the patient has the possibility of hepatomegaly. The lower the value, the higher the diagnosis of hepatomegaly. For patients with low cuprocyanin, it is recommended that they eat less copper-rich foods, such as animal offal and animal fats, and less nutty foods and egg-related foods. For patients with low copper protein, if patients eat the above foods, it will further cause copper metabolism disorders, resulting in copper deposition in the body, which affects liver function, kidney function, and neurological development.