"The changes are driven partly by the trend of children getting bigger over the past two decades, Transport Canada said. Experts blame shifting lifestyles, including high-calorie food consumption, more time spent in front of the computer or television, and mothers switching earlier to feeding their babies formula rather than breast milk.
According to Statistics Canada, 26 per cent of children between the ages of 6 and 11 were overweight or obese in 2004, up from 13 per cent in 1978. Among two- to five-year-olds, 21 per cent were overweight or obese in both those periods."
Source: The Globe and Mail