Exercise advice on food labels could help to tackle the obesity crisis

Saying how far consumers need to walk to burn off the calories could change eating habits

Labelling food and drinks with how much walking or running is needed to burn them off could help tackle the obesity crisis, researchers say.

While all packaged food must display certain nutritional information, such as calorie content, there is limited evidence that the approach changes what people buy or eat. Meanwhile, waistlines continue to expand.