by Jane Thurnell Read This book will help you test for nutritional information in a clear, and systematic manner. This book does not set out to teach you a lot of nutrition knowledge and facts. It sets out to teach you how to use your skills to navigate your way through all the information available. Within its pages, you will find an easy to follow system that allows you to test quickly and easily the exact area you need to be working with. Then you can quickly turn to the relevant section of the book to find information that will help to remind you about important facts and issues to take into account before you start testing.