my 4 month old baby is 4.4 kg while her birth weight was 2.8 kg is her weight normal according to her age

A. Mam I’ll tell you the basic method of calculating the weight and that is about 500 g in a month so if you calculate this your child less on the current weight by 400 g so 80% of your period working very well for the child that is not helping gain weight you have to work upon that so I think it would be good for you to start giving formula 2 or three times in the day and rest of the times you should give breastfeeding