Milk 6-12mos

Hi mommies any suggest po prefer milk for my baby this coming 15 his turning 6mos and I ask the pedia to change his milk ngsswa na cgro SIYA sa lasa milk nia nan optipro hw milk nia now.. And his Dr gve me try of similac gain... My ngyri na dn po snio ayw inum milk baby ng gcng cia pg tulog cia dun ko lng nppnainum ung mik nia.. Thank you po