This book is a comprehensive guide that will help you to undertake the 21 Day Metabolic Diet properly and successfully. To date, hundreds of thousands of People have done it with unprecedented success. The authors have made a conscious effort to keep their explanations simple and clear as to the method and Background behind it. They explain in an easily understandable way why so many people have had quick and lasting results without the dreaded "yo-yo" effect afterwards. Are high quality nutritional supplements useful and how should they be used? How do metabolic activators work and why are they so important, especially with this diet? Why do you not get those unpleasant hunger pains? These are just three of the main - legitimate - questions answered in this book. They have also detailed how you can best nourish your body. The expertise of the authors is based on a wealth of professional indepth knowledge, years of experience, together with the observations of numerous participants over the course of the diet. The 21 Day Metabolic Diet is intended to be long lasting because its goal is a longterm, sensible and healthy way of eating rather than short-term (unreasonable) results.