No don't add water they need the fat content to gain weight adding water will dilute it not good for them talk to ur dr about it probably sugest prune juice mixed in with there formula or breast milk
Hi Benny
my baby was 6 weeks prem (now 7 wks old) and he gets a bit constipated...I was told to add a bit of extra water if bottle fed.
Also I have read that preemie babies grunt alot and it is normal...so your baby may not be constipated after all.
If they Are constipated they would probably cry rather than grunt
hope this helps