Jennifer Aniston shows off fab abs in new Smart Water advert

Jennifer Aniston has shown off her well-toned body in a new ad for Smart Water wearing nothing but a sports bra and some tight pants

The 41-year-old actress sizzles in the new black-and-white ad that features her perfectly toned abs.

“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.),” the New York Daily News quoted the ad as saying.

The former ‘Friends’ star, who runs and practices yoga to stay in shape, recently denied using a so-called baby food diet to lose weight for her new movie.

The diet, which calls for lots of pureed food, has become popular on the celebrity circuit.

Aniston also denies having used Botox to fight the wrinkles (though she hasn”t ruled out using the beauty regimen).

She says she eats healthy diet but won”t give up her coffee, wine or dairy products.

“My advice: just stop eating s**t every day,” she said.