Baby weight doesn’t gain

My baby was also taking around 120ml at 4 months, and my paediatrician said every baby is different. What's more important is the total milk intake over 24 hours, the number of wet diapers, and whether baby is active and meeting milestones. If your baby's weight hasn't increased at all for a while, it would be a good idea to consult your paediatrician to rule out any feeding or growth concerns