Iron and zinc are both trace elements in the body and play a vital role in human health and the growth and development of children. However, because iron and zinc are two different elements, the symptoms that are manifested when the body is deficient are not quite the same. I. Symptoms of iron deficiency: Iron is one of the important components of hemoglobin, and if the body is deficient in iron, it can lead to iron deficiency-related anemia symptoms. Patients may show general weakness, fatigue, irritability, forgetfulness, pale face, pale nail bed, dizziness, palpitations, dry hair, enlarged liver and spleen lymph nodes, etc. If iron deficiency leads to more serious anemia, patients may also have chest tightness, breathing difficulties, cardiac insufficiency, etc. Symptoms of zinc deficiency: 1, growth and development lag: the height and weight of the affected children are low, lagging behind normal children of the same age; the appearance of secondary sexual characteristics is delayed; zinc deficiency in pregnant women may affect the normal growth and development of the fetus, leading to miscarriage, premature birth, deformities, etc.; 2, heterophagia: zinc deficiency may lead to heterophagia, such as the preference to eat dirt, paper, dirt, etc., while the patient’s sense of taste is diminished, appetite reduced; 3 3. Infections: Due to the low immunity caused by zinc deficiency, children may often catch colds, pneumonia, diarrhea, etc.; 4. Skin lesions and hair loss: Zinc is closely related to many skin and mucous membrane diseases, so the human body is prone to oral inflammation, tongue inflammation, mouth ulcers, facial acne, hair loss, etc.; 5. Other: Zinc deficiency can lead to memory loss, abnormal thinking function, mental depression, inattention and Alzheimer’s disease.