Hi ..my girl is 3 yrs 2 months old...she is not gaining weight, her weight is still 11 kgs. She is very active and sharp in understanding the things .. please tell me what to do

A. dear mum, for healthy weight gain of your child, you should give protein rich foods such as eggs, non veg foods, pulses, legumes, curd, paneer, cheese, nuts such as almonds, walnuts.