The words of Dr. Naumov, the author of one of the methods described in this book: "A person does not need to be treated, he needs to be fed properly!" - can be made the motto of this publication!We are what we eat! With food, we get the necessary nutrients and trace elements. Food provides the source material from which the body synthesizes everything it needs in order not to get sick and live long.There are rules, features, secrets of proper nutrition. They must be known! But, unfortunately, there are no rules that would suit everyone without exception. What to do? The answer to that question is this book. It contains eleven main food systems that have a multi-million army of adherents around the world. The systems are described concisely, but very accessible. Explore these systems. You can choose from them what you consider important. And you can experiment with each method. The main thing is that you have valuable information in your hands! Use it for your health!