My 3.5 month old baby gained only 400gm weight in a month. He is taking breast milk and 2-3 times in a day formula milk. His birth weight was 2.5 kg and now his weight is 5.5 kg. Please suggest what should I do to increase his weight.

A. Hey mommy the first 3 montsh the baby will gain 150-200 grams per week and in the next three months it will drop to 100-150 per week so accordingly he is gaining the right amount of weight do not worry. additionally the birth weight doubles at 5-6 months and triples at one year