Careful nutritional strategy is an essential component in the management of critically ill patients. Evidence-based clinical practice guidelines can be an effective solution to improving the process and structure of nutritional strategy for critically ill patients. The 2015 Canadian clinical practice guidelines (CPGs) summarized the evidence from approximately 354 randomized controlled trials in the area of critical care nutrition since 1980. The Canadian CPGs were first developed in 2003 and have been updated every 2 years. It is important for the acquisition of new evidence-based knowledge. This paper includes a brief summary on changes in 2015 CPGs compared with 2013 CPGs.