Boost the nutritional quality of your diet – as well as your running performance – with these easy food swaps. SWAP: Apple FOR: Orange Oranges contain nine times more immune-boosting vitamin C than apples – each has more than 100 per cent

food you’re already eating even better. Now, will it be mushrooms, fried onion rings...If you're a Runner's World UK magazine subscriber, you can see a full 10 sets of good-better-bests right here, including pre- and post-run nutrition. Otherwise, enjoy

grilled steak. Pre-workoutGood RaisinsBetter Banana cakeBest Low-fat strawberry yoghurtWhy? Snack on slow-burning carbs 30 to 60 minutes before your run to cut the risk of hypoglycaemia and boost your endurance. A handful of raisins has a fairly high GI

.Beware Of The Gas Avoid gas-forming foods such as baked beans and other pulses, cruciferous vegetables (broccoli, Brussels sprouts, cauliflower), bran cereals and spicy foods.Take To The Bottle Keep a water bottle handy so you remember to drink regularly throughout

of these chewy and moist bars in a flavour you'll like. They're nutritionally excellent, but some tasters felt they were an effort to eat on the run. Contact www.scienceinsport.com; 01254 246 060

: your calorie and carbohydrate intake needs to match your training energy output. However, as your training volume increases and then tapers, so should your food intake. Planning your pre-race diet needn't be a nutritional nightmare: here are 25 handy

to match your training energy output. However, as your training volume increases and then tapers, so should your food intake. Planning your pre-race diet needn't be a nutritional nightmare: here are 25 handy do's and don'ts to help get you started