I have used Novalac whn my daughter was a baby and Alhamdulliah shes doing fine (shes 3+ now)...i stopped it 2 years ago because she needed a formula which cud help her in weight gain so we stwitched to Pediasure....but i never had any problems with novalac, infact my baby didnt have problems like constipation which u almost get with most of the formula milk...btw whts the bad thing u heard abt it?