One year old baby suddenly do not love to eat, may be caused by improper diet, lack of trace elements, indigestion and so on. 1. Improper diet: the baby is relatively small, the daily demand for food is not a lot, if you do not give the baby to develop good eating habits, so that the baby in the meal before eating too many snacks, will have an impact on the baby’s appetite, resulting in the baby does not love to eat. 2. Lack of micronutrients: For example, when a baby is deficient in zinc, it can easily lead to a decrease in appetite, picky eating, anorexia and other symptoms. 3. indigestion: the baby’s digestive system development is not perfect, if usually too much food or eat not easy to digest food, it is easy to lead to indigestion affect appetite. One year old baby suddenly do not love to eat, pay attention to timely adjustment of diet, if necessary, need to take the baby to the hospital to find out why.