Alternative Substrates in the Critically Ill Subject

The over-arching aim of this study is to investigate the feasibility of administrating alternative substrates to intensive care unit (ICU) patients. This includes reconstituting and administering a modular ketone-inducing (ketogenic) enteral feeding regimen to ICU patients; to show that this feed does increase blood ketones; and that it is feasible to collect the desired outcomes. This will allow us to determine in a subsequent randomised controlled trial whether this intervention improves ICU outcomes (including ICU-related muscle loss).