The centenary of the Harris–Benedict equations: How to assess energy requirements best? Recommendations from the ESPEN expert group

Background & aimsThe year 2019 marked the centenary of publication Harris and Benedict equations for estimation energy expenditure. In October a Scientific Symposium was organized by European Society Clinical Nutrition Metabolism (ESPEN) in Vienna, Austria, to celebrate this historical landmark, looking at what is currently known about measurement expenditure.MethodsCurrent evidence discussed during symposium, including scientific basis clinical knowledge, summarized here assist with requirements that later translate into prescription.ResultsIn most settings, majority predictive have low moderate performance, best generally reaching an accuracy no more than 70%, often lead large errors estimating true needs patients. Generally speaking, addition body composition measurements did not add equations. Indirect calorimetry reliable method measure expenditure guide prescription, but carries inherent limitations, greatly restricting its use real life practice.ConclusionsWhile limitations are clear, their still mainstay practice. It imperative recognize specific patient populations whom equation should be preferred. When available, indirect advised variety aiming avoid under-as well as overfeeding. The Current prescription. While