Gwyneth Paltrow reveals her 'Iron Man 2' diet

London, May 7 : American actress Gwyneth Paltrow has revealed her meagre diet regime that she adopted to be able to wear tiny shorts for the premiere of her upcoming movie 'Iron Man 2'.

The 37-year-old Academy Award winner actress lived on protein bars, vegetable juice and "super-low calorie" recipes. She also stuck to the exhausting workouts devised by her trainer, Tracy Anderson.

"I have just traversed the globe during promotion for Ironman 2, getting asked the same question repeatedly: how did I get in shape for the movie? Well, I am not going to lie, the process was an arduous one," Paltrow's Goop website said.

"Also, to really get in line, I followed her strict diet for 5 days to lose my extra winter weight. Now, I am not a good dieter and I cannot ever do it for long, only when there is a goal in sight, which there was in this case.

"This regime got me into the shape of my life and I continue to return to it when I have a specific event so that I can do ridiculous things like be a 37 year old mother of two and wear shorts," she added.

According to her Goop website, Paltrow has a cup of green tea at 7 AM. A 'Think Thin' protein bar or a 'Clean Shake' made of almond milk and powder supplements for breakfast, reports The Telegraph.

It is followed by a 90-minute work out with a glass of kale juice in the end.

'Super low carb, low calorie tortilla wraps for lunch.

She has an afternoon snack of almonds or organic fermented tea followed by Anderson''s 'super-low calorie' turkey kale soup for dinner.