The 17 Day Diet plan was designed to change your eating habits significantly every 17 days. This will supposedly keep your metabolism revved up enough to burn fat and calories at a high rate. In the first 17 day segment it is claimed you can lose up to 15 pounds. On this diet, you will need to watch what you and eat specifically eat for the segment you are on. Having a blank cookbook journal to begin your diet with, will allow you to add meals that you like, that work for you and are specific to your diet segment.