Jenny McCarthy just turned 40 and is in the best shape of her life after daring to bare all in Playboy this year.

But the sexy blonde funny girl is serious about being as healthy as possible and cut out her bad habits like cigarettes and coffee and uses celebrity trainer Mark Harari three times a week to work up a sweat.

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But when Jenny needs to lose 5lbs quickly she turns to her favorite method which always works for her.

"My new favorite thing is my soup diet," she told the February issue of Shape magazine. "I make a ton of nutritious ones, like butternut squash and vegetable. When I want to drop 5 pounds quickly I eat them for every meal for about 10 days."

And although Jenny follows a mainly gluten and dairy free diet she of course sometimes allows herself to splurge.

"Chinese food and pizza!" she shared of her cheat food. "There's this place in Chicago called Giordano's which has the best deep-dish pizza in the world. It's my therapist, my best friend, and my boyfriend on Friday nights."

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And speaking of boyfriend, after splitting with her NFL lover Brian Urlacher back in August, Jenny has slowly been getting back on the dating horse.

"I've gone on some dates, but I'm really taking a time-out for me at the moment," she shared.

For more on Jenny's interview pick up the upcoming issue of Shape and click through the gallery to see her work out tips that keeps her body looking so amazing.

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