LONDON: Family doctors in the UK have added the weight of their opinion to the obesity debate by demanding a ban on all 'junk food' advertising after a report claimed nutrition labelling systems on food products were failing to make the grade.

Insurer Norwich Union Healthcare says 62% of the 1,000 general practitioners surveyed believed steps to show fat, sugar and salt content on packaged foods had "little or no impact" on patients' eating habits.

And 81% said food manufacturers needed to take "more responsibility" for showing clear nutritional guidelines on their products.

Norwich Union also polled 2,000 consumers, 48% of whom thought current food labelling systems were confusing and difficult to understand, while 41% of adults said labelling had not changed their eating habits.

Data sourced from; additional content by WARC staff