The Role of Diet is not one of your typical diet books. In fact, it's not a diet book at all. It is the culmination of more than 5 years of research about everything from Vitamins and Minerals to the nutritional values of individual foods in every food group. There is a massive amount of information in books and on the internet relating to diet and food. Many of them claim to provide the best diet tips and strategies for eating healthy. Most don't provide essential information about diet and health, they simply tell you how it's going to miraculously save your life when you buy into their program. Diet and the foods you eat are critical to your well being. They should not be painful or rigorous to adhere to. If they are, the honeymoon is over as soon as you deviate from the program. None of these programs provide you with the key information that you really need. You get an impossible to follow protocol with a disclaimer which pretty much states that if it doesn't work, it's entirely your fault. By the time you realize it's not working and never will, they have another load of crock to shove in your face claiming that this is the one that will change your life....for about 3 months in reality. The Role of Diet doesn't work that way. It is a thoroughly fact checked manuscript that provides you with the dietary information that you really need. It is fully intended to be a reference manual that educates you on all aspects of nutrition and the specific biology associated with it in a format that you can understand. Part 2 digs deeper into the biology of many natural foods and their properties. There are no specific recommendations, no protocols, and no programs to join. It's just the facts. You're the one making the informed decisions, The Role of Diet simply provides you with the tools and information to make educated decisions about your diet and your health.