The present invention relates to infant/young child nutrition. A set of nutritional compositions having beneficial effects to infants/young children is disclosed. The set of nutritional compositions comprises at least two compositions with varying amounts of components which impart a beneficial effect to the infants young/children. A nutrition kit for infants/young children comprising the set of nutritional compositions is also disclosed as well as a method for manufacturing the set of nutritional components. A dosage regimen is also disclosed.