An estimated 34% of American adults were obese, and an additional 34% were overweight in 2007–2008 [1]. Obesity is associated with diabetes, hypertension, hyperlipidemia, stroke, heart disease, respiratory problems, osteoarthritis, and several types of cancer [2]. Across all insurance sectors medical spending for an obese patient is approximately 42% higher annually compared to that for an individual with normal body weight [3].

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