My baby is 2 months old now, he weighs 3.5 kg only. He takes milk well and sleeps well. Kindly advise how to gain his weight.

A. hello if the baby is gaining a minimum of 600 GM's to 800 gms o'er month is a good weight gain and is absolutely nothing to worry about.. make sure theb baby is getting sufficient breast milk and you can check on the same by expressing the milk using Babyhug breastpump