If you are trying to eat healthier food but feel you need a bit of help you might want to try mysupermarket.co.uk In addition to their price comparison service they have now launched a service that allows you see nutritional information about your shop including the calories and fat and salt content. It then asks you if you want to switch any of the foods that are high in calories for a lower calorie alternative. They claim that using the service could knock around 4,000 calories off a families consumption.