The vitamins required to maintain bone density

Options

A. Vitamin A and C
B. Vitamin D
C. Vitamin B and C
D. Vitamin A and E

Answer

To determine the vitamins required to maintain bone density, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification of Vitamins**:
- Vitamins are categorized into two main groups: water-soluble vitamins (like B and C) and fat-soluble vitamins (like A, D, E, and K).

2. **Identify the Role of Fat-Soluble Vitamins**:
- Among the fat-soluble vitamins, we need to focus on their specific functions related to bone health.

3. **Focus on Vitamin D (Calciferol)**:
- Vitamin D, also known as calciferol, plays a crucial role in the absorption of calcium from the gut. Calcium is essential for maintaining bone density.

4. **Consequences of Vitamin D Deficiency**:
- A deficiency in vitamin D leads to decreased calcium absorption, which results in lower calcium levels in the blood. This can cause various disorders, including decreased bone density and conditions like tetany.

5. **Conclusion**:
- Since vitamin D is directly associated with calcium absorption and maintaining bone density, it is the vitamin required for this purpose.

### Final Answer:
The vitamin required to maintain bone density is **Vitamin D** (Calciferol).

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