These maps show the dramatic increase in obesity and diabetes in the United States from 1990 to 2001.
This increase is important because obesity is a major risk factor for type 2 diabetes and because about 55% of adults in the U.S. who have diabetes are also obese (CDC).
Reference
BRFSS, CDC 1990 – 2001.
Centers for Disease Control and Prevention. Prevalence of overweight and obesity among adults with diagnosed diabetes--United States, 1988-1994 and 1999-2002. MMWR. 2004;53:1066-1068.