Michelle McManus
'The Lifeplan' (2006)
The promise: On release of the DVD the 'Pop Idol' star dropped from 23 stone to 13 stone with help from Gillian McKeith. Michelle said: "It works! I'm 10 stone lighter and I feel fantastic!" It claimed to be "the ultimate weight loss tool kit for anyone looking to change their life - forever!"
Now: Two years since its release, when she was without the help the famous dietician, Michelle has failed to keep her weight down.