The importance of nutrition in health and fitness maintainance is well known. A rational and balanced diet allows a good development of sportsmen and their performances. The diet has to be organized taking in account the metabolic processes in various sporting events. It is also determined by the particularities of substance exchange and the varied intensity of physical effort. Sportsmen’s diet has to be qualitative and sufficient enough to fulfill all the plastic and energetic loses of the organism. Energetical loses vary in different types of sport depending on the intensity and the duration of the effort done.