Omnivory is caused by a deficiency of micronutrients such as iron and zinc. Omnivory refers to a pathological process in which the patient consumes things that are routinely inedible, such as hair, sand, and plastic. In addition to deficiencies of micronutrients such as iron and zinc, patients with xenophagia may also be comorbid with psychological disorders, especially children who lack motherly love, or patients with severe psychological disorders, who may also develop strange behaviors such as xenophagia. The management of xerophagia can be improved by supplementation of trace elements, such as iron and zinc, etc. If no improvement can be made, the patient should also be further examined for the presence of psychological disorders, and can go to the relevant psychiatric clinic for further examination and consultation. Ectophagia may only exist for a short period of time, may not be combined with other clinical symptoms of zinc and iron deficiency, and does not have obvious anemia or anorexia or picky eating symptoms. If there are no obvious signs of iron deficiency, dietary supplements containing iron and zinc can be taken to improve the symptoms of anorexia nervosa.