Sooner or later, everyone finds himself in a situation where he seriously has to think about his diet. There may be a great many reasons for this. The main one is deviations in well-being. In this case, a person interested in his health must clearly understand what, when and how to eat. However, anyone who, trying to solve the issue of individual nutrition, delves into the study of literature on nutrition, becomes uncomfortable with the abundance of contradictory information.