A child’s partiality and picky eating may be caused by zinc deficiency, iron deficiency, etc., but it may also be caused by bad eating habits. 1. Bad eating habits: When children do not develop good eating habits from childhood, parents add complementary foods too early or too late, do not focus on eating, feeding, etc., children are prone to picky eating, partiality. 2. Zinc deficiency: children with zinc deficiency have abnormal development of taste buds, poor appetite, and are prone to picky eating and partiality. 3. Iron deficiency: Iron deficiency may cause the child to like to eat some strange things, appear omnivorous, also easy to picky eating and partiality. The child’s partiality and picky eating is not only caused by the lack of something, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment!