What deficiency diseases are linked to a lack of Vitamin D?

A lack of Vitamin D is primarily associated with rickets and osteomalacia. Rickets is a condition that occurs in children and is characterized by the softening and weakening of bones, which can lead to deformities. This deficiency is due to the critical role that Vitamin D plays in the absorption of calcium and phosphorus, essential components for healthy bone development.

Osteomalacia, on the other hand, occurs in adults and involves the softening of bones, similarly due to insufficient Vitamin D levels, leading to bone pain and an increased risk of fractures. Both conditions highlight the importance of Vitamin D in maintaining proper bone health and mineralization.

The other choices listed correspond to deficiencies related to different vitamins or minerals that do not directly involve Vitamin D, illustrating that specific nutrients are linked to distinct deficiency diseases.