First Look: PEOPLE's Weight-Loss Challenge

09/26/2008 AT 08:00 AM EDT

In January, PEOPLE challenged eight residents of Mississippi – the most obese state in the nation – to lose weight. The catch? They wouldn't live in a special facility or try a new diet – they had to lose the pounds the old-fashioned way, with diet and exercise.

Their struggle was documented for PEOPLE's upcoming prime-time special, Half their Size: The PEOPLE Magazine Weight-Loss Challenge, airing Sept. 30 on ABC at 10 p.m. ET. (For more information, go to ABC.com.) Watch this exclusive preview of the special – and don't forget to see their amazing weight loss in the new issue of PEOPLE, on stands now!

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