GETTY IMAGESWe all know that a healthy diet is a balancing act of carbs, proteins and fats. But there's one factor runners often neglect, warns sports nutritionist Becky Stevenson (proactivate.co.uk): "Whether you've done an easy 20 minutes or been

.Ditch: Takeaway cheese and tomato pizzaSwitch: Muscle-repairing veg and chicken pizzaPrepared chicken breast strips have a stellar 11:1 protein-to-fat ratio to help build muscle. And pesto, which is full of pine nuts, parmesan and olive oil, provides a tasty shot

out your 'eating identity' and learn how to tweak your diet so it meets your nutritional and running needs.Reactive eater"Reactive eaters listen to their bodies," says clinical nutritionist Tara Coleman (taracoleman.com). This stops them consuming too