The diet's working, kiddies. American children and teenagers may not be getting fatter, according to a new study that shows the proportion of kids classified as obese has held steadily at 18 percent between 2003 and 2012. "Kids are not getting fatter," researcher Lyn Steffen said of her study published in Pediatrics, attributing it to healthier school meals and vending machines. Abdominal obesity within that time fell among children aged 2 to 5, but maintained in kids 6 to 18, one-third of whom are obese.
