Victoria and David Beckham's children are hooked on expensive sushi.The fashion designer - who has four children, Brooklyn, 14, Romeo, 10, Cruz, eight, and 19-month-old Harper with her football star husband David - has revealed her family like tucking into raw seafood from upmarket London eatery Nobu.The former Spice Girls star opened up about her strict diet and told Harper's BAZAAR magazine that she eats fruit for breakfast with peppermint tea and a double espresso, and enjoys "something quite healthy" like sushi and green juice for lunch with peppermint tea and sparkling water.She said: "David and I like to go out for dinner, either just the two of us or with the kids. We'll go anywhere--Italian, French; the kids love sushi as well. That's their favourite food. Nobu's really great."The 38-year-old star also shared details of her daily routine and revealed she usually gets around six hours of sleep a night.She said: "I don't make Victoria Beckham nighties, so I'll leave it to everybody's imagination what I sleep in. I always use Dr. Lancer skin products."Victoria relies on a number of other affordable beauty products to keep her feeling fresh, including Elizabeth Arden Eight Hour Cream.She said: "The body cream I use is a really simple, inexpensive body moisturizer by Weleda. It's really, really thick, and I slather it on."I also really like those Stila lip glosses, the ones that you twist and they click. They smell and taste nice."