Proteins are one of the pillars of nutrition. The body needs to be facilitated through food because it can not generate them by itself. The quantity to be supplied varies according to the needs of each organism. Children in the growth phase, pregnant women or athletes are among the groups with the greatest need for them, although they are also necessary in cases like our elders, since it is an essential element for a good general functioning of our organism, at any age and in any situation.