A 1 year old baby with poor appetite should be treated according to the possible causes of intervention, usually pay attention to the following aspects: 1, to pay attention to whether the baby has a micronutrient deficiency, such as zinc deficiency, the baby is prone to low appetite, should be supplemented with zinc, such as zinc sulfate syrup or lysine glucose zinc granules, etc., the time of zinc supplementation usually takes about 1-3 months. 2, to pay attention to whether there is a micronutrient deficiency iron deficiency, iron deficiency can cause nutritional iron deficiency anemia, affecting the baby’s appetite, usually should be supplemented with iron. The baby may have a weak spleen and stomach and poor digestive function, so you can take Si Mo Tang Oral Liquid or Infant Spleen Health San. 4. If the baby has an imbalance in the intestinal micro-ecological system and poor digestion, you can supplement micro-ecological preparations, such as bifidobacteria or Saccharomyces boulardii, etc. 5, pay attention to the influence of disease factors, such as intestinal viruses or bacterial infections can affect the baby’s appetite, it is necessary to treat the cause of the disease.