Betteryou.com held a huge launch in Los Angeles to showcase its wellness concierge service website.

The company strives to find Angelenos the best experts in health and wellness, ranging from fitness trainers and nutritionists, to beauty specialists.

Some of the best celebrity trainers in the biz attended the event, including Cameron Diaz's trainer, Teddy Bass, Hilary Swank's trainer, Grant Roberts, and Grace Lazenby.

Watch the video and check out BetterYou.com to start your wellness transformation!

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"American Idol" alum Jordin Sparks stayed fit while in town for the 2012 Super Bowl, checking out Reebok's CrossFit workout with her dad Phillipi Sparks, a former NY Giants player.

It was Jordin's first time doing CrossFit and she loved the workout. It was a great way for her to maintain her recent weight loss.

Watch!

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"Extra's" AJ Calloway caught up with drop-dead gorgeous hot mama Jessica Alba, who credited her rockin' post-baby body to doing things differently the second time around. "I really sort of made healthier choices with my second pregnancy than my first. I did pre-natal yoga, then I would take walks."

Alba dished about her young daughters, Honor, 3, and Haven, 5 months, saying, "They're good. Honor is so cute, she's really sassy and funny and Haven is like a little cuddle bug. It's been the biggest blessing of my life."

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CNN Chief Medical Correspondent Dr. Sanjay Gupta told "Extra's" Renee Bargh he believes America definitely has a health problem. "We went from being one of the fittest nations on the planet to being one of the fattest, unfortunately. But it's a totally fixable problem."

The neurosurgeon has been helping to change the lives of seven lucky viewers chosen to train with him for the Annual Nautica Malibu Triathlon. The doc explained, "They're going to compete here in Malibu with us in September."

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From Mariah Carey to Kirstie Alley, here are five celebrities who slimmed down this year, sharing their diet secrets with "Extra"!

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Former "Dancing with the Stars" contestant Kirstie Alley is grooving her way into the New Year with her new get-fit initiative "100 Days of Dance." "100 Days of Dance" is a national grassroots campaign led by Kirstie Alley to promote an active lifestyle for all. Follow Kirstie's daily dance videos, and join her by dancing for at least 30 minutes each day for 100 consecutive days, starting January 1, 2012. Click here to start dancing!

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Plastic surgeon Dr. Garth Fisher has developed a new, non-invasive way to lose weight and contour your body -- by freezing your fat.

Check it out!

A Cool Sculpting procedure costs $1,200 for one treatment. To find out more, visit Dr. Fisher's official website!

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Dermatologist Dr. Nicholas Perricone is on a mission to fight aging from the inside out.

"Everybody wants to know how they can capture that fresh complexion they see only in very youthful people," said Dr. Perricone.

Find out what foods help reduce fine lines... and how to get rid of puffy dark circles under your eyes.

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