hi mam. my baby is 7 month. her birth weight is 3.3kg.now her weight is 6.1 kg. how to increase her weight

A. It is about 7 to 800 g less because if it was 3.3 then it was meant to be 6.6 by completing the time of six months and 500 g which is about 7100 g by completing the time of seven months so right now if you look at your child is little behind but that’s okay you can manage by starting with formula and food for your child