Megan Fox's figure a single time arrived her the title of most fit figure: Megan Fox's figure once landed her the title of best body in Hollywood, but the actress now has the same waist size as her eight-year-old stepson Kassius after she put herself on an extremely strict 1,000 calorie-a-day diet.

Weighing just 7st 4lb and with her waist measuring a mere 23in, Megan's curves have vanished. ‘She's wearing tiny jeans,' a source tells Now. ‘Meg might like the way her body looks, but her legs are too thin and she won't listen to anyone who tries to tell her to put on weight.'

The 5ft 5in actress, who was recently seen wearing Kassius's T-shirt, has lost over a stone since her movie debut in Transformers in 2007 but sources close to Megan say she's reluctant to gain weight. ‘She's always been known for her curves, but she really likes her new waif image,' says our source.