
Over the past few decades, a steady and dramatic increase in obesity has occurred throughout the entire U.S. population, particularly among children and youth. Currently, one third of American children and youth are either obese or at risk of becoming obese. Over the past 30 years, the obesity rate has nearly tripled for children ages 2–5 years (from 5 to 14 percent) and youth ages 12–19 years (from 5 to 17 percent), and quadrupled for children ages 6–11 years (from 4 to 19 percent). The country is beginning to recognize childhood obesity as a major public health epidemic that will incur substantial costs to the nation. However, the current level of investment by the public and private sectors still does not match the extent of the problem. There is a substantial underinvestment of resources to adequately address the scope of the obesity crisis when compared to the expressed concern for and commitment to possible infectious disease outbreaks or bioterrorism events.