14/08/2014 16:42 BST | Updated 20/05/2015 10:12 BST

Scarlett Johansson's Beauty Secret? Eat Loads Of Kale!

Scarlett Johansson will forever be a Hollywood siren. She's just got gorgeous and glowy down to a tee.

Not only is the 29-year-old American actress engaged to Romain Dauriac but she's also expecting her first child AND promoting her latest flick Captain America: The Winter Soldier.

Seriously, how does she do it all? The day job, the behind the camera stunts (the majority of which she does herself - in a catsuit), the red carpet scene... and then there's maintaining that signature, svelte Scarlett bod. It's all down to that leafy green superfood kale.

Johansson revealed exactly how she pulls off those figure-flaunting ensembles. "By sticking to a kale-rich diet and being nice and patient when I'm being dressed for the day in wardrobe," reports The Daily Mail.

LONDON, ENGLAND - MARCH 20:  Scarlett Johansson attends the UK Film Premiere of

Kale is the vegetable du jour right now, and A-listers like ScarJo are proving that the results are INCREDIBLE.

So - was that her secret to looking amazing in another of her new films, Under The Skin? ( It's the one where she does a few nude scenes.)

"Once you become a recognisable person, someone who is no longer anonymous, I think you have to accept your fate," Scarlett said about her role.

"I live in New York and try to lead as normal a life there as I possibly can. I go to shops, I meet people, I go to movies, I go to the gym."

So shopping, cinemas, working out and kale - if that's what works for Scarlett, we're jumping on the bandwagon. Immediately.

LOVE SCARLETT'S EVERY LOOK? Take a swoon through this gallery to see more gorgeous looks from the yummy mummy to be...