Peter Reali / Corbis

People from Mississippi are fat. With an adult obesity rate of 33%, Mississippi has gobbled its way to the "chubbiest state" crown for the fifth year in a row, according to a new joint report by Trust for America's Health and the Robert Wood Johnson Foundation. Alabama, West Virginia and Tennessee aren't far behind, with obesity rates over 30%. In fact, eight of the 10 fattest states are in the South. The region famous for its biscuits, barbecue and pecan pies has been struggling with its weight for years — but then again, so has the rest of the country. Wisconsin loves cheese, New Yorkers scarf pizza, and New Englanders have been known to enjoy a crab cake or two. So why is the South so portly?