Dear Doctor, My 3 years son since a month or 2 trying to eat Mud, painting from walls, shirt buttons, wood, cloths, papers etc. Also biting his teeth. I am assuming this might be because of any iron, vitamins or calcium deficiency. But not sure what to use to rectify this problem in him. Please suggest. From his daily diet fruits are almost none, i tried various ways to give him fruits but he rejects if i force he cries badly. I also give pediasure in milk morning and night. Thanks, Durga