she is becoming lean after going to school...to become fat and healthy I want to know the good food for her(6yrs)

A. hi yes ,as kids grow their activity level is increased and along with their weight , height also increase. so if a child looks happy and active, gains enough weight (16 to 18 kg) , Achieve age appropriate milestones then no need to worry about your child physical appearance. for a child it is not necessary to look Chubby .