The algorithms for the enteral nutrition support also called protocols had been developed and implemented in the intensive care units (ICU) across the world to enhance the provision of calories and proteins via enteral nutrition (EN), increasing the proportion of patients that received an optimal amount (80-85% of their energy and protein requirements), and decreasing the caloric and protein debt. The algorithm includes different designs and interventions, the variability of the design is because the algorithm is adapted to the local necessities.