Loss of appetite is mostly caused by zinc deficiency, because zinc is one of the components of taste in saliva. Zinc deficiency will lead to mucosal hyperplasia and poor keratinization, which will make a large number of exfoliated epithelial cells block the pores of taste buds, make food difficult to touch taste buds, and make taste insensitive, thus leading to partial eclipse, anorexia and even eating different phenomena.
To increase appetite, it is recommended to pay more attention to a balanced diet, and you can often eat some food such as egg yolk, lean meat, liver, black sesame, sticks, oysters and walnuts.