'Extreme Weight Loss' Premiere: Chris Powell Helps Twins David And Becca Lose Weight (VIDEO)

05/29/2013 09:40 am ET | Updated May 29, 2013

On the season premiere of “Extreme Makeover: Weight Loss Edition,” trainer Chris Powell met 22-year-old twins Becca and David, who had been struggling with their weight for years.

The twins blamed their weight problem -- Becca weighed 398 lbs. and David weighed 470 lbs. -- on their parents' divorce, which happened when the twins were teenagers. David said his lack of relationship with his father even led to a suicide attempt, but an unexpected call from his dad on the night of the attempt stopped him and he got the chance to thank his father on the show.

“You told me that you loved me and I hadn’t heard that in so long. But it was like all I needed at the time,” David told his dad Dan, who said he was proud of his son's strength.

Chris was able to whip the twins into shape, leading to a combined weight loss of 418 lbs. Afterward, they said they were headed back to college and felt happier and healthier than ever.

"Extreme Weight Loss" airs on Tuesdays at 8 p.m. ET on ABC.

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