Kelly Preston loses 39lbs: 'I didn't know if I could bounce back'

Kelly Preston has revealed that she recently lost 39lbs.

The actress welcomed son Benjamin with husband John Travolta in November 2010 but confessed that she was initially unsure that she would be able to shed the pounds gained during pregnancy.

"When I got pregnant at 48, I didn't know if my body would bounce back," she told People.

"I lost 39lbs, have more energy than I had 20 years ago - and I feel amazing. I'm going to be turning 50 next year - holy s**t! Hey, 50 is the new 30."

Preston also revealed that she shifted the weight by following long-time friend Kirstie Alley's weight loss programme, Organic Liason, of which she recently became the spokesperson.

"It's pretty much the most genius thing ever," she said of the system.

Earlier this year, Preston insisted that she was not concerned with regaining her former figure and had not exercised since giving birth.

> Kelly Preston: 'I always wanted to be a mother'
> Kelly Preston: 'Scientology helped me cope with Jett's death