Iwan Thomas on carb loading for the London Marathon

I'm Ewan Thomas and I'm a former Olympic athlete. I was a European and Commonwealth 400 metre champion, not quite as fast anymore, but very lucky. I now work in television talking about the sport. I love so much. I still try and keep a healthy lifestyle going, eat healthily and train at least three or four times a week. It's all very easy to go to the supermarket and buy ready-made pasta. But if you get a chance, try and make fresh pasta it’s quite satisfying. I actually was on holiday once in Tuscany and I actually went to a cookery class and I learned how to roll it through the machine and it actually tasted quite nice. And for me being an athlete, it's a great source of carbohydrates. I've done the London marathon five times and the week before London, I carb load. That means that I eat loads and loads of pasta to give myself the energy to get round that long course. My general rule of thumb is eat healthy during the week. Try and train at least three or four times. And if you've managed to do that and you want a little cheeky naughty day, then you can afford a little bit of junk food on a Sunday, but only if you've been good, the rest of the week. Drink lots of water, exercise regularly and as I say, if you feel the need for a little bit of a treat, you're allowed one day a week.