Aptamil ready to feed follow on milk even once your baby starts weaning milk will continue to be their main source of nourishment aptamil follow on can be used as a main drink as part of a weaning diet from 6 months aptamil ready to feed follow on milk benefits from around 6 months of age your babys nutritional needs increase for example by the time theyre 7 months old your baby will need almost the same amount of iron per day as a 30 year old man many mums switch their babies ont