America's Most Obese Cities - Forbes.com

Once considered an affliction of the lazy and indulgent, obesity now affects about one-third of Americans. The epidemic has swept up the wealthy, middle class and the poor; city dwellers, suburbanites and those in rural areas; and people of all races and ethnicities.

The causes, researchers say, are numerous. These include a diet of calorie-dense but nutrient-deficient food found in grocery and convenience stores, public planning strategies that favor motorists over walkers and cyclists, and simply bad habits....