Children who do not eat complementary foods may not be appetizing or during teething, or may be caused by digestive disorders. Relief measures should be decided according to the specific causes, such as paying attention to adjusting the structure of complementary foods, strengthening oral care, or giving probiotic medication as prescribed by the doctor. 1. Unappetizing supplemental food: Parents should pay attention to diversification when preparing supplemental food for children, mixing meat and vegetables, avoiding too much of a single cause of children’s loss of appetite, showing the above symptoms, focusing on ensuring a balanced intake of nutrients to enhance the child’s appetite and increase the amount of food. 2. Children’s teething: children’s teething during the gum area will be swollen discomfort, affecting the normal eating, parents are advised to choose liquid or semi-fluid food for children to eat, to ensure that easy to digest, and at the same time, to keep light, to avoid adverse stimulation of the oral cavity, the teeth affect appetite. 3. Digestive disorders: Parents are advised to consult a doctor and give the child probiotics (e.g. Bacillus subtilis bacillus granules) to regulate gastrointestinal function, improve appetite and alleviate the above symptoms under the doctor’s guidance. There may be other reasons why children do not take complementary foods, so it is recommended that they go to the hospital in time for a complete examination to determine the cause of the disease and then give targeted treatment or therapy. The use of medication should follow the doctor’s instructions.