Jennifer Aniston Smart Water ad workout wear abs leggings

Clearly, water does a body good. Jennifer Aniston's body, in particular. Photo: Splash News/SmartWater

Take that, Angelina!

Baring killer abs in her new workout-inspired Smart Water ad, Jennifer Aniston proves she doesn't have to sweat it when it comes to looking hotter than her archrival.

In the steamy black-and-white shot, currently running in magazines, 41-year-old Aniston defines fit in dark workout wear that highlights her sinewy muscle tone.

"My workout partner," reads the copy. "Working out feels great... afterwards. That's why I drink Smart. It's hydration I can feel. (And it's one part of my routine I never sweat.)"

Besides the beverage, Aniston -- whose latest round of Smart Water promos also show her in bed and in the kitchen -- credits yoga with keeping her in top form.

"It completely changed my life," says the star, who combines her poses with a mix of cardio and toning exercises. One thing she does not do is adhere to a baby food diet -- a popular rumor that's been making the rounds.

"Sorry, but the last time I had baby food, I believe I was 1," Aniston told People magazine. "I've been on solids for about 40 years now."

In fact, Aniston says, she doesn't deprive herself at all. "Look I eat really well and I work out, but I also indulge when I want to," she told Harper's Bazzar UK.

"I don't starve myself in an extremist way. You're not taking away my coffee or my dairy or my glass of wine because I'd be devastated.

"My advice: Just stop eating s--t every day."

In related news, see which Hollywood legend Angelina Jolie recently channeled in Italy.

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