Lisa Parsonage in the gym
Media playback is unsupported on your device

Diets causing more harm than good, says health psychologist

Diets are causing more harm than good, according to a health psychologist who says the Welsh government should stop advising people to lose weight.

It comes as a new poll, commissioned for BBC Wales' Live Longer Wales season, suggests two thirds of Welsh people have been on a diet - but more than half do not maintain their target weight.

Tim Rogers reports.

The full report will be on Week in Week Out on BBC One at 22:35 BST on Tuesday, 15 October.

  • 15 Oct 2013
Go to next video: 'Sugar is villain' in fat challenge