It is not recommended to put baby cereals in your baby’s bottle unless advised by your pediatrician. The reason pediatricians sometimes advise this is to help with reflux, or a speech pathologist may recommend it if baby needs thicker liquids to help with swallowing. It used to be a common practice to help with fussy babies and to help them sleep longer throughout the night but is no longer recommended for most babies. It can increase the risk of choking and cause your baby to gain too much weight too fast.