Growing up milk is a fortified goat milk drink suitable for children from 1 year old onwards. Source of Vitamin D, and Vitamins A and C which contribute to the normal function of the immune system. Nanny care Growing up milk should be used as part of a normal, varied and healthy weaning diet. Nannycare Growing up milk should only be used as part of a mixed diet and not as a breast milk substitute. Please note that results may vary.