Liver transplantation (LT) is an effective treatment for patients with acute liver failure, end-stage liver disease, and non-resectable hepatocellular carcinoma (HCC) [1]. Early after surgery, LT recipients often gain weight and develop metabolic disorders, due to both an increase in caloric intake and unfavorable metabolic effects of immunosuppressive drugs [2-4]. Weight gain is already evident six months after transplantation in most patients [5] and one third of transplanted patients are obese after 3 years [5].
