My baby is 2 months 8 days old...his weight has increased but not body mass..Is this normal or should I eat something else and hhe is completely on breastfeeding.. Kindly suggest!!

A. hello baby gaining a minimum of 600 gram to 800 gram per month is a good weight gain and absolutely nothing to worry about and make sure the baby is getting sufficient BM otherwise you can give infant formula milk using the bpa free bottle like babyhug