Which deficiency can lead to osteoporosis in adults?

• A. Vitamin C deficiency
• B. Vitamin D deficiency
• C. Vitamin B12 deficiency
• D. Calcium deficiency

Answer: (B)

Osteoporosis is a condition characterized by decreased bone density and an increased risk of fractures. One of the primary deficiencies that can lead to the development of osteoporosis in adults is vitamin D deficiency. Vitamin D plays a crucial role in calcium absorption in the intestines. Without adequate levels of vitamin D, the body becomes less efficient at absorbing calcium, which is essential for maintaining strong and healthy bones.

When calcium levels in the body become insufficient, the body may begin to draw on its bone reserves to maintain necessary calcium levels for bodily functions, thereby leading to a decrease in bone density over time. This process significantly contributes to the development of osteoporosis.

Further, vitamin D is essential for the regulation of bone remodeling, the ongoing process by which bone tissue is broken down and rebuilt. Insufficient vitamin D disrupts this balance, favoring bone resorption over formation, ultimately leading to weaker bones. This connection highlights the importance of vitamin D in bone health and its direct impact on preventing osteoporosis in adults.