Hello my son is 3 years old but not getting healthy at all even I feed him properly and give him proper food he is too thin and now his legs start bending from inside . What should I do or gave him to make him healthy .

A. Hello mom some indivudual their metabolism and body stucture is such , give him well balanced diet comparising of various food groups , make sure their is exposure to morning sunlight for vitmain D , calcium rich foods