Currently there is no LITTLE STEPS Growing-up Milk. Should you wish to move on to a Growing-up milk once your baby reaches 1 year of age, SMA PRO Growing-up Milk is a fortified milk drink, suitable for young children from 1-3 years, as part of a healthy balanced diet.We believe that it is important to ensure that parents have choices in the formula that they give to their baby. Which is why we have a variety of milks to suit the different needs of parents and babies.