 Vitamin supplementation is important for children who are at risk of developing a vitamin deficiency due to restricted diets, poor absorption, or insufficient intake of certain foods. However, there is no consensus among healthcare professionals regarding the appropriate dosage and duration of supplementation. Furthermore, there is limited evidence to suggest that vitamin supplementation can be used as a primary form of treatment for any condition. Therefore, it is important to consult with a doctor before administering vitamin supplements to children. This article was authored by Lucia Martini, Luca Pecororo, Chiara Salvatini, and others.