Kate Upton reveals she prepares for shoots with a 48-hour juice cleanse

She has one of the most coveted physiques in the world but Kate Upton kept it under wraps in London on Monday. 

She left her hotel in the English capital, wearing a pair of black skinny jeans, matching top and a grey coat, accessorising the look with heels, sunglasses and a large tote bag.

Kate pulled her blonde hair back off her face and added a dash of pink lipstick. 

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While Kate may have one of the best bodies in the world, the model, who wears a US size 8 (UK size 12), recently revealed she is on an extremely strict diet and exercise regime to achieve that look. 

Kate, who appeared on the cover of the 2012 Sports Illustrated Swimsuit Issue, lives by the ABC rule: No alcohol, bread or processed carbohydrates, and goes through a 48-hour juice cleanse before every big film scene of photo shoot.

n a new interview with the Evening Standard magazine, Kate reveals that she eats lean and green meals every day, with only the occasional 'cheat day', where she indulges in salty fried food. 

According to the publication, the star eats a combination of one whole egg and one white egg scrambled on a bed of spinach for breakfast, followed by a green juice and handful of almonds mid morning.

For lunch, she has grilled chicken, grilled vegetables and quinoa and then tops up with a protein bar late afternoon.

Then for dinner she prepares a meal of sashimi of grilled chicken with a kale and cashew salad.

Fans of red meat will also be disappointed - Kate lives by the rule 'if it flies or swims, it's good,' meaning bacon, steak and sausages are out of the question.

She told the paper: 'For me it's about being strong, having the strength to work ten-hour days and eating healthily.'

Even within the realms of healthy food, Kate has her limits - although most people would consider themselves virtuous for snacking on fruit, she only eats specific types, including blueberries, blackberries, strawberries, kiwis and apples.  

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