The evolution of the nutrition concept is described until arriving to the concept of three-dimensionality, analyzing it from at the world level, in Latin America and México. Nutrition used to be considered an exclusively biological process; nevertheless, now it involves social and ecological aspects. The convergence between the health concept and nutrition from the biosocial conception of the individual is analyzed, emphasizing the importance of education as a promotional tool, which includes not only includes the informative aspect but also the modification of behavior to change the individual's lifestyle.