- part of a series in our 2009 Flora London Marathon build-up. On Friday April 17, we'll be welcoming Olympic athlete - and Lucozade Sport Super Six mentor - Liz Yelling into the forums between 1pm and 2pm to answer your last-minute race-week questions

and to replace fluid you've lost trhough sweat. The guidelines are: 1g of carbohydate per kg of body weight as soon as possible after exercise, plus 10-20 g of protein. As for fluid, drink according to the amount of weight you've lost. Monitor your urine colour

energy? NoodlerA. For breakfast, the classic guidelines are 1-4 g of carbohydrate per kg of body weight - that's 70-280g for a 70kg person (a large bowl of cereal, two slices of toast and a banana). Add in orange juice or a sports drink along with water