Practising what she preaches: Rosie Huntington-Whiteley continues her water drinking regime as she steps out in gym gear

She recently revealed the secret to her stunning supermodel body - drinking eight glasses of water a day.
And it seems Rosie Huntington-Whiteley is intent on keeping up the healthy routine as she was spotted carrying a bottle of water while out and about in Los Angeles on Monday.
The 25-year-old star credited Dr Batmanghelidj's book You're Not Sick, You're Thirsty! Water For Health, For Healing, For Life for helping maintain her slim shape, as well as her clear and radiant complexion just last week.

Looking after herself: Rosie Huntington-Whiteley stocks up on water after revealing her inspiration to keep her supermodel figure is to drink eight glasses a day

And she seemed to be keeping up with what the book taught her as she popped out in the LA sunshine.
Rosie had obviously added some exercise to her healthy day out as well as she appeared in her dressed down gym gear.
She wore black cropped jogging bottoms with a zip up top with trainers brightening up the ensemble thanks to the turquoise laces.

Recognisable pout: Rosie looked like she'd been working out as she stepped out in Los Angeles in her gym gear

The catwalk star covered her eyes with dark shades, while completing her healthy look with her hair tied up in a bun.
Although a far cry from her usual glamorous looks, Rosie gave away her usual preened look with her perfectly manicured red nails.
Last week she tweeted a picture of the publication, Rosie wrote: 'A brilliant book I'm reading. We always knew water was good for us. Now discover why. Have you had your 8 glasses today??! #naturesmedicine #getdrinking #8aday #water #simple #safe #free #effective.'

Rehydrating: Rosie revealed last week she's been taking tips from You're Not Sick, You're Thirsty! Water For Health, For Healing, For Life to maintain her looks

Home time: She carried her bottle of water before sitting down in her car ready to get back home

And the effects of the plan are clearly paying off for the British model, who has been showing off her immaculate physique over recent days.
The svelte star clearly does all she can to keep herself in tip top condition and gave away another one of her health kicks earlier this week.
She was spotted sipping on a healthy-looking green vitamin drink in Malibu on Sunday.
Looking almost unrecognisable with her dark blonde hair scraped back into a ponytail and going make-up free, the model enjoyed a dressed down day with a pal after a gym session.

On a health kick: Rosie Huntington-Whiteley stopped by a health food shop to grab a green vitamin smoothie after a work out session in Malibu on Sunday

The 25-year-old looked a far cry from her glamorous red carpet image as she wandered around town in casual gym attire.
She showed off her tiny frame in a pair of skintight black leggings as she made her way from her car into the health shop, pairing them with gold metallic flip-flops.
Rosie threw a loose-fitting white hoodie over the top of a black T-shirt and added blue and white baseball cap over her hair, having clearly just been for a work-out.

Fitness fanatic: The British model  sipped on the healthy-looking drink as she went dressed down and make-up free for her day out

Almost unrecognisable: Rosie looked a far cry from her usually glamorous red carpet image as she scraped her hair back into a ponytail and added a baseball cap

And instead of treating herself to something indulgent after her session, it seems that the dedicated star stuck to her health regime by having just the large juice drink.
Heading into the shop while her friend waited outside, the Mad Max actress later emerged carrying two of the bright green drinks, and couldn't resist having a sip of hers straight away.
She also carried a huge brown paper bag on one arm, having obviously stocked up on some healthy food while inside.
Later that evening Rosie settled in for a quiet night, tweeting that she was watching the finale of smash hit show Girls, writing: 'My night. #girlshbo @lenadunham.'

Super svelte figure: The actress and model showed off her tiny frame in a pair of skintight black leggings as she wandered around town