my son birth wt 2.300 kg now 6 year old now wt 16kg this weight ok va

A. Child six years old child should be somewhere around 20 kgs as of now your child is little behind the expected weight so you should give more of proteins both veg and nonveg in the diet along with all the family foods and also check if your child is having an issue with digestion constipation or maybe nutritional deficiency so you need to clear that also