A first period of follow-up on the 400 patients was designed to survey and evaluate current nutrition administration policy. The second period of follow-up on the 400 patients was designed to evaluate the impacts of adding milky food to the breakfast and of educating health care professionals on the early detection of undernutrition. Efficacy will be evaluated based on increase in transthyretin concentrations, with special focus given to length of stay as a secondary end-point.