PRotEin Provision in Critical IllneSs

Rapid skeletal muscle wasting during critical illness had a detrimental impact on both short and long term outcomes following ICU admission. Increased dietary protein delivery might attenuate skeletal muscle wasting and its subsequent effects on post-ICU function. The investigators will conduct a 935 patient, randomised controlled, quadruple blinded parallel group trial to determine whether enteral nutrition with increased protein content in mechanically ventilated, critically ill patients is able to improve functional recovery.