For more information about this message, please visit this page: About CDC. Adult obesity prevalence by state and territory using self-reported information from the Behavioral Risk Factor Surveillance System. Obesity is common, serious and costly The prevalence of obesity was 39. Obesity-related conditions include heart disease, stroke, type 2 diabetes and certain types of cancer, some of the leading causes of preventable death. The estimated annual medical cost of obesity in the U. 1,429 higher than those of normal weight. The prevalence of obesity was 35.