Clacium absorption in intestine is the function of

Options

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D

Answer

To solve the question regarding calcium absorption in the intestine, we need to identify which vitamin is responsible for this process. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the Role of Vitamins in Calcium Absorption
Calcium absorption in the intestine is influenced by various factors, including the presence of certain vitamins.

**Hint:** Think about which vitamins are known to influence calcium metabolism.

### Step 2: Focus on Vitamin D
Among the vitamins, Vitamin D is well-known for its crucial role in promoting calcium absorption in the gut. It helps the body utilize calcium effectively, which is essential for maintaining healthy bones and teeth.

**Hint:** Recall the functions of Vitamin D in relation to calcium and bone health.

### Step 3: Understand the Mechanism
Vitamin D enhances the intestinal absorption of calcium and phosphate, which are vital for bone mineralization. It also helps maintain serum calcium levels, preventing conditions like hypocalcemia (low calcium levels in the blood).

**Hint:** Consider how Vitamin D interacts with calcium and phosphate in the body.

### Step 4: Conclusion
Based on the information gathered, we can conclude that the function of calcium absorption in the intestine is primarily attributed to Vitamin D.

**Final Answer:** Vitamin D is the vitamin responsible for promoting calcium absorption in the intestine.

### Summary of Steps:
1. Identify the role of vitamins in calcium absorption.
2. Focus on Vitamin D as a key vitamin.
3. Understand how Vitamin D promotes calcium and phosphate absorption.
4. Conclude that Vitamin D is essential for calcium absorption in the intestine.