Finding a healthy lunch when you're on the run isn't always easy. So follow a few basic rules. Start with a meal that contains carbs to give you energy for the afternoon ahead. If you can, choose one that contains high-fibre carbs such as wholemeal bread or wholewheat pasta. The extra fibre will help to keep your digestive system working properly. Always check the nutrition panel on shop bought sarnies and salads as they can be loaded with salt and fat. Make sure you buy some fruit or veg to go with it, carrot sticks and cherry tomatoes make a change from fruit salad all the time, but are still good sources of fibre, for a healthy tum. Then add a pot of low-fat or fat-free yogurt to finish off your lunch.