Appropriate Controlled Feeding: a Single Blinded Prospective Randomised Study

During patients' stay in the hospital, some of the patients may require artificial feeding for various reasons either through a vein or through a tube going directly to the gut. However, the amount of feeding that can be considered 'adequate' is unclear due to lack of research data. The current evidence the investigators have suggests that doctors might be giving patients more than they require, which might carry some risks. This hasn't been proven until now and there is no evidence as yet to show investigators exactly how much the doctors should feed patients. The aim of the study is to see whether feeding patients less than what they are currently been feed is associated with better outcome. The patients will be randomly (like tossing a coin) allocated into 2 groups. One group will get 100% of the current amount; the second group will get 60%. The investigators will then compare the groups to decide if feeding patients less than the current practice is associated with better outcomes.