Isla Fisher doesn't weigh herself regularly because she wants to set a good example for her daughters. The Australian actress - who has two daughters Olive, five, and Elula, two, with her 41-year-old husband Sacha Baron Cohen - relies on yoga to keep her figure trim but tries not to be too strict with her diet as she wants her daughters to grow up with a positive body image. She told the new issue of Fitness magazine that she was happy to gain weight for her role in 'The Great Gatsby', saying: 'I gained 15 pounds. It mainly manifested itself in my boobs, which was very exciting. Sadly, that's gone now.'
