The investigators propose an algorithm for the EN support based on evidence, in order to avoid the variability in the prescription that include a prediction equation according to the BMI to calculate the energy and protein requirements. The algorithm propose the range for the initial infusion for the gastric and post-pyloric feeding in continuous infusion and evaluated the tolerability, if there is no signs and symptoms of intolerance then the infusion can be increased. If the subject present intolerability to the EN (diarrhea, abdominal distention), an action in the algorithm indicate options rather than the suspension. Moreover when the EN is interrupt for a reason that is not intolerance and only if the patient already reach the goal rate the compensatory feed table can be use it. As a part of the intervention, several educational sessions for the medical, nutritionist and nurse staff were performed during the period of the study.