With a slew of high-profile films under her belt, an A-list boyfriend in Leonardo DiCaprio and a smokin’ hot body, it’s safe to say 23-year-old Blake Lively is one of Hollywood’s most talked-about actresses. Her Green Lantern trainer, Bobby Strom, reveals the fitness and diet secrets he used to whip the Gossip Girl star into the best shape of her life in just under three weeks – and how you can do it too!

TRAIN HARD FOUR TIMES A WEEK
Before working with Bobby, Blake hadn’t done much training other than some occasional exercise in New York, but that all changed when she started working with him. ‘Blake trained for 60-90 minutes, four days out of seven,’ Bobby says. ‘We’d start off with a light jog or step-ups on the Bosu ball to get the blood flowing. Then we did circuits so that she was continuously in the fat-burning zone.’

CHANGE IT UP OFTEN
To make sure Blake was always working at her peak, Bobby says, ‘I added new [exercises] in all the time to keep her interested and challenged. We did 10 different exercises in a row or sometimes clumps of them, three or four times, but never the same sequences.’

FORGET THE SCALES
It’s about how much body fat you have, not how much you weigh, Bobby insists. ‘What you want to get is low body fat and more lean muscle. I used fat callipers to measure [Blake’s] body fat percentage and never weighed her,’ Bobby says. ‘[After three weeks], we changed her BMI and reduced her body fat to about three to four per cent, so we built lean muscle which gave her the defined look she has now. Her stamina, strength and physical appearance changed, too.’

ASPIRE TO LOOK ATHLETIC, NOT SKINNY
‘I wanted Blake to build lean muscle and, with my training and her hard work, she became much more toned and athletic rather than just thin,’ Bobby says. ‘Three weeks after we’d started training together, she did a photo shoot, and her hairdresser came back later and told me that she looked different!’

MAKE FITNESS A LIFESTYLE
‘My philosophy is that exercise and proper nutrition are a lifestyle – not a movie role or a training period,’ Bobby says. ‘Exercise and nutrition should never finish! My top tip for training well and getting results is that commitment and consistency teamed with intensity equals success.’

ENJOY YOURSELF!
‘We had so much fun!’ Bobby says. ‘Blake would often come up with names for some of the circuits we created and try to remember them. There were so many – she loved it! The time went by so quickly because we laughed but still worked hard.’

Following Bobby’s diet dos and don’ts – combined with his training – Blake saw some serious results seriously fast. ‘It was great to see someone who hadn’t trained and eaten like this before really appreciate what I had taught her,’ Bobby says. ‘That’s what was so nice and endearing about training Blake. She was appreciative, and she sure looks absolutely awesome!’

EAT…Regular, small meals which include lean proteins in the form of eggs, fish and turkey and lots of vegetables. Blake loved foods like tabouli salads and quinoa dishes.

DRINK… Plenty of water every day.

INCLUDE… Healthy fats from virgin olive oil, almonds and avocado and low GI carbs like quinoa, which is a ‘superfood’.

REDUCE…Salt, sugar and high GI carbs like flour, pasta and white bread.

OVERINDULGE… Allow yourself to have a treat, like cheese or chocolate, but only once a week.

CONSUME… Cream sauce and creamy dishes.