In the feeding clinic this week with Dr Christian Jessen are two women at opposite ends of the weight spectrum but with one thing in common: they both want to look wonderful in their wedding dresses.

Wafer-thin Jenette Nolan from Lancashire refuses to marry her husband until she can fill her wedding dress but she's got a long way to go. Weighing just 6 stone 8lbs, she's two stone underweight.

Meanwhile Rosemarie Palmer, who lives on the Isle of Man, is hoping that a week's food swap will kick start her weight-loss plan to get from over 21 stone to a size 14 in time for her wedding this summer.

Meanwhile, journalist Anna Richardson looks into the dark world of extreme dieting. She meets Lisa Bond who became partially blind by taking the radical decision to stop taking insulin in order to lose weight. Anna also talks to ex-Big Brother housemate Nikki Graham about the extremes she has gone to in order to stay thin.

And when it comes to reducing the size of the nation's rears, Gillian McKeith is cleaning up the act of a group of Brummie bottoms with a device that promises to vacuum away the fat.

And after dealing with the ladies of Birmingham Gillian's off to test some ten-pin bowlers on what they know about the calories in some typical party food.