The Body Flex X-Max Carbtrac is the ultimate device for making a low-carb diet work permanently. The Carbtrac contains over 10,000 foods stored in its database, including 200 fast food restaurants and hundreds of popular packaged foods. In just seconds, you can look up any food's calories and carb content and then make an informed decision about whether or not to eat it, or how much of it you can have. This unit keeps track of all your food and drink carbs and calories so you can add up your daily intake, and keep track of how much exercise you need. Included in the package is the 82-page book The Low Carb Diet: How to Do It Right by acclaimed nutritionist Dr. Gregory Ellis, which when followed properly guarantees weight loss. Also included is a video featuring doctor Ellis giving you a step-by-step summary of how to make the Carbtrac work for you as a permanent weight-loss-solution tool, and a tape measure that allows you to track your body composition and progress.