By the numbers Weight gain

10: Pounds by which the average weight of Americans increased in the past decade

350 million: Gallons of extra fuel needed to carry heavier passengers on jets

$275 million: Increased cost of fuel needed to tote the extra weight

3.9 million: Tons of extra carbon dioxide produced by jet fuel

65: Average percentage of adults estimated to be overweight or obese between 1999 to 2002

Source: Centers for Disease Control and Prevention; American Journal of Preventive Medicine

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