-Emil Zatopek, 1952 Olympic Gold Medallist 5,000metres, 10,000metres and marathon.
A diet rich in a variety of carbohydrates, (potatoes, rice, pasta) with some lean meat or vegetarian protein (eg Tofu) and plenty of fruit and vegetables is what is needed. The greater the range of colour in the fruit and vegetables the greater the range of vitamins and minerals. The more natural the food the better it is for you, the smaller the list of ingredients the better it is for you; ready meals often contain staggering amounts of salt, fat and preservatives.
And a little of what you fancy does you good. A couple of glasses of red wine a few days a week are thought to be good for you and dark chocolate contains lots of good stuff, but do not eat too much.
Do not eat just before exercising as this is likely to make you sluggish and possibly give you a stitch. Keep yourself well hydrated by drinking plenty of water or diluted unsweetened fruit juice. Save fizzy drinks for treats or leave them out all together.
If you want some simple basic advice on eating healthily then read Ed & Phil's Fit Food, available from some running shops and online at
www.edandphil.co.uk