performance in endurance events. Many people find gels easiest though, and they are a more concentrated source of carbohydrate. Don't worry too much about your fat and protein content – you’ll only be using them for energy during the race.Q. I’m running

quarter should be fish or chicken and veg. A good portion size is simply a normal plate that looks full - not one that's overflowing.Q. I'm struggling to get my timing right when eating before a long run - will eating a late dinner the night before affect

Nick Morgan is Lead Sport Scientist at Lucozade Sport.Read the whole forum debateQ. Is there any benefit in doing my long runs without taking on any products? Would they then have an 'extra-bonus' effect on race day? MaracuyaA. There is school