my baby's birth weight was 2.2 kg. now she is 2.5 month old and weight is 4 kg. she is completely on formula milk as she is adopted. what can I do to increase her weight?

A. Dear mum, considering a birth weight of 2.2 kg, current weight of 4 kg is absolutely normal for 2.5 months old baby. Baby should gain at least 500 grams per month. You should continue with formula feed till 6 months and thereafter introduce other top foods.