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Why is obesity so common in Scotland?

15 August 2013 Last updated at 14:19 BST

A BBC investigation will question how seriously hospitals are taking the government's healthy living campaign.

Health boards have been under pressure to improve the healthy choices available for both patients and visitors.

Yet secret filming has shown the message in some hospitals is not getting through.

BBC Scotland Samantha Poling's exclusive report contains some images of surgical procedures.

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