my baby's weight was 2.6kg when she was born. now when she is 2 months 17 days old, the weight is around 3.20kg. breast milk was not enough for her so we started formula milk 1 month ago.. she is quite weak. what should we do ?

A. Maam your child has gained 800 g till the child is 200 g behind they expected weight gain so it would be good if you want to change the brand of the milk that you are giving to the child and also consult your doctor for further assistance