Does the child bite nails because they lack zinc?

Patient's question:

Eats fingernails, not very serious about thinking in class

Doctor's answer:

Children biting their fingernails may not necessarily be due to zinc deficiency; it is more likely a psychological abnormal reaction or a habit. It is recommended to frequently tell the child about the disadvantages of nail-biting, and it will gradually be corrected. As for zinc supplementation, oral protein zinc can be taken, and it is advisable to consume more vegetables, fruits, and legumes.
Child health issues have always troubled parents. When treating this condition, it is best to consider general treatment. Only by using professional methods can family members help children recover from the illness as soon as possible, avoiding any impact on their growth and development. Therefore, after a child falls ill, parents should prioritize helping them recover promptly.