Hello mam my baby 13 month old she not gaining weight .what can I do for this

A. hi if a child weighs Around 7.5 to 9 kg you should not worry about your child weight gain. but if it is low ,give food like boiled potato , sweet potato, rice,sago which are Rich in starch . give fruits like apple, banana, papaya, avacado etc which can also help in Healthy weight gain.