sir my girl is 7 years old and her weight is 17 kg.... how can i increase her weight.... her body is too weak

A. Hello mom most important is how active she is for her age .. as some kids inspite if having a good diet they get to not gain weight very easily . So not worry . Though you can give him fresh fruit milk shakes. , dry fruits and nuts , eggs , lentils and legumes c seasonal fruits and vegetables vegetables