Obesity and nutrition: Edited by Caroline M. Apovian and Jeffrey I. MechanickSocial influence and obesityHammond, Ross AAuthor Information The Brookings Institution, Washington, District of Columbia, USA Correspondence to Ross A. Hammond, Senior Fellow, Economic Studies, The Brookings Institution, 1775 Massachusetts Avenue NW, Washington, DC 20036, USA Tel: +1 202 797 6000; e-mail: firstname.lastname@example.org Current Opinion in Endocrinology, Diabetes and Obesity: October 2010 - Volume 17 - Issue 5 - p 467-471 doi: 10.1097/MED.0b013e32833d4687 Buy Metrics Abstract Purpose of review To review a selection of research published in the last 12 months on the role of social influence in the obesity epidemic. Recent findings Recent papers add evidence to previous work linking social network structures and obesity. Social norms, both eating norms and body image norms, are identified as one major source of social influence through networks. Social capital and social stress are additional types of social influence. Summary There is increasing evidence that social influence and social network structures are significant factors in obesity. Deeper understanding of the mechanisms of action and dynamics of social influence, and its link with other factors involved in the obesity epidemic, is an important goal for further research. © 2010 Lippincott Williams & Wilkins, Inc.