 Childhood obesity is an urgent public health issue. Roughly one-quarter of Canadian children are overweight, putting them at risk for chronic diseases. Because most families access health services in primary care, it is an ideal venue for obesity prevention. Specifically, programs in primary care can prevent unhealthy weight gain in healthy weight children primary prevention AND reduce unhealthy weight gain in children who are already overweight secondary prevention. Parents play a key role in childrens health, so it is vital to include parents in strategies to prevent childhood obesity. 