ABSTRACT: Evolutionary Bariatrics is an approach combining evolutionary and ecological concepts through an integrated healthcare team to treat morbidly obese patient populations. This presentation will emphasize how to assist patients in adopting an evolutionary lifestyle to achieve weight loss and to improve health and fitness. Using this model, patients and healthcare providers will be able to identify and assess roadblocks and psychological triggers to problematic eating and to better design interventions to facilitate the necessary lifestyle changes. This presentation will also discuss the role of the psychologist working with obese patient populations and in a multidisciplinary healthcare team.