Whether you are a professional in the food industry, or someone with an interest in nutrition, GDA Calculator is a simple but effective tool for calculating the Guideline Daily Allowances of Food products.

Based on the UK Food Standards Agency's guidelines for food, this app also uses the 'Traffic Light' system for each of the relevant constituents.

Once you have entered all of the values you can then share the results by email, Twitter or Facebook. By adding a product name you can create your own reference library for as many foods as you like - simply share each one using your preferred method.