и нфо рма ц и я E A S O Prevalence, Pathophysiology, Health Consequences and Treatment Options of Obesity in the Elderly: A Guideline E.M.H. Mathus-Vliegen1 for the Study of Obesity (EASO); members: Arnaud Basdevant2 Dragan Micic6 Volkan Yumuk12 , Maximo Maislos7 , Gabriela Roman8 , Barbara Zahorska-Markiewicz13 1Department of Gastroenterology and Hepatology, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands; 2 Department of Endocrinology, Pitie Salpetriere Hospital; Pierre and Marie Curie-Paris 6 University, Paris, France; 3University College London Hospitals, London, UK; 4Obesity Management Centre, Institute of Endocrinology, Prague, Czech Republic; 5Else Kroner-Fresenius-Centre for Nutrition Medicine, Technical University, Munich, Germany; 6Department for Obesity, Metabolic and Reproductive Disorders, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia; 7 Atherosclerosis and Metabolism Unit, Soroka UMC, Ben-Gurion University SHC, Beer Sheva, Israel; 8Clinical Centre of Diabetes, Nutrition, Metabolic diseases, 'Iuliu Hatieganu' University, Cluj-Napoca, Romania; 9Department of Physiology, University of Lausanne, Lausanne, Switzerland; 10Department of Endocrinology, HYGEIA Hospital, Athens, Greece; 11Department of Medicine, Medical University, Graz, Austria; 12Department of Medicine, Division of Endocrinology and Metabolism, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey; 13 Department of Pathophysiology, Medical University of Silesia, Katowice, Poland The prevalence of obesity is rising progressively, even among older age groups. <...> The predicted prevalence of obesity in Americans, 60 years and older was 37% in 2010. <...> The predicted prevalence of obesity in Europe in 2015 varies between 20 and 30% dependent on the model used. <...> Although cut-off values of BMI, waist circumference and percentages of fat mass have not been defined for the elderly (nor for the elderly of different ethnicity), it is clear from several meta-analyses that mortality and morbidity associated with overweight and obesity only increases at a BMI above 30 kg/m2. <...> Thus, treatment should only be offered to patients who are obese rather than overweight and who also have functional impairments, metabolic complications or obesity-related diseases, that can benefit from weight loss. <...> The weight loss therapy should aim to minimize muscle <...>