Malnutrition is prevalent in the spectrum of liver diseases. A recent published guideline by ESPEN is recommending specific methods of nutritional management for patients with different liver diseases in different stages (Plauth, et al., 2019). Some examples are given below to describe the situation in the different patients. In liver cirrhosis, the prevalence and severity of mixed type protein energy malnutrition is related to the clinical stage of chronic liver disease, ranging from 20% in patients with well compensated disease to more than 60% in patients with advanced cirrhosis (Plauth, et al., 2019). It is also associated with higher mortality.