Worldwide , 42 million children under the age of 5 are overweight or obese . Comment: Weight loss expert Dr Sally Norton backed calls for ban on TV ads . And criticised Coca Cola 's sponsorship of the London Eye attraction .
Worldwide , 42 million children under the age of 5 are overweight or obese . British Heart Foundation survey shows two thirds of parents feel badgered by their children each week to buy junk food after seeing it advertised . Weight loss expert Dr Sally Norton backed calls for ban on TV ads . And criticised Coca Cola 's sponsorship of the London Eye attraction .