Researchers say most excess weight is gained by kids before they reach school age.

Telling teenage would-be smokers that lighting up may make them fat
down the road may be a more effective deterrent than harping on the
risks of heart disease and cancer from smoking, hints research
published in the latest issue of the American Journal of Public
Health.

Findings could produce treatments to reduce cravings, expand
calorie burn

The pill appeared to work twice as well as Acomplia or Meridia.