Childhood obesity

UK surveys have shown that more than one in five children are overweight or obese by the time they start school. “Little research has looked at how best to protect the health of bottle-fed babies, who gain weight rapidly and tend to be at higher risk of childhood obesity,” said Wareham. It turns out that many mothers lack information about how best to bottle-feed their babies and mistakes in feed preparation are common. 
http://www.cam.ac.uk/research/features/unhealthy-diet-and-physical-inactivity-understanding-these-silent-killers/