#asktheexperts My baby aspirates quite frequently if I feed milk by mouth but puree he is taking fine. I want to switch completely to semi solids to avoid aspirations. he is currently on OG tube. I offer two puree meals with mouth and all other formula feeds through tube. how soon can I switch to all semi solid feeds? does semi solid cause constipation? My baby developed constipation from 6.5months soon after we changed his formula feed from stage 1 to stage 2. He passes stool every 2-3 days which is very dry and hard with lots of effort. I sometimes give him duphlac 2.5 ml once or twice a day. He is currently taking 120 ml 3 hourly where I put only 2.5 scoop of formula to make it runny so that he can get some water. Should I offer water separately? How much water to offer. water he is unable to take from mouth as he aspirates it. he has a genetic condition leading to developmental delays.