The present invention relates to an age tailored nutritional composition system comprising at least one nutritional composition A that is administered to an infant from birth and until 3-6 months of life of said infant at least one nutritional composition B that is administered to an infant from 3-6 months and until 1 year of life of said infant at least one nutritional composition C that is administered after the first year of life of the young child and wherein the amount of protein of the different nutritional compositions A, B, C decreases with the sequence of administration. The present invention furthermore relates to the uses of said nutritional composition system.