Alternative Substrates in the Critically Ill Subject

Dietician prescribed, and consisting of Betaquik® (from Vitaflo, Nutritional company) to provide medium chain triglycerides), Renapro Shot® (protein), Maxijul® (carbohydrate) and multivitamins according to nutritional need (energy and protein requirements) based on clinical status of the participant. Ketogenic feed to be given continuously via nasogastric tube for 10 days

Standard Enteral feed. Dietician prescribed based on clinical status of the participant, as per individual Trust protocols. Standard feed to be given continuously via nasogastric tube for 10 days