Overweight is an important risk factor for noncommunicable diseases in general and diabetes in particular. There is presently a global epidemic of overweight. A recent large study found a 5.6% growth in obesity in the United States in 2001, and a massive 74% increase since 1991. Twenty one percent of American adults are obese. The prevalence of diabetes, which correlates with obesity has risen 61% in the US since 1990. Diabetes rose 8% over 2000-01 to nearly 8% of the population. The situation is not much better in many developing countries.