Watch our programme on US food deserts on Tuesday, October 1 at 19:30 GMT.



Sources:

US Department of Agriculture - Economic Research Service
US Department of Agriculture - Food Environment Atlas
US Census Bureau - Chicago, Illinois
Chicago prime location for studying diabetes - Chicago Tribune
The unhealthy truth: Obesity in the black population of Chicago - The Chicago Urban League
Overweight and obesity among Chicago Public Schools Students, 2010-11 - City of Chicago
The Chicago 2011 food desert drilldown - Mari Gallagher