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We all lead very busy lives and sometimes may miss a research paper that is important to our work. In continuation with our previous efforts, the editors here showcase a few recent papers from the European Journal of Clinical Nutrition that we believe would be of interest to the readership. In this focus you will find a historical review of energy metabolism, a perspective on whether obesity should be considered a disease, metabolic adaptation and flexibility and other original articles covering body composition techniques and its functional significance in disease states. We hope you find these of value to you.