Question

What is necessary for the absorption of calcium in the body?

• A. Vitamin 'D'
• B. Protein
• C. Fat
• D. Vitamin 'A'

Hint:

Remember the partnership: Calcium builds strong bones, and Vitamin D is the key that unlocks the door for calcium to enter the body from the gut. You need both for good bone health.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The absorption of nutrients from food into the bloodstream can be influenced by the presence of other nutrients. The question asks which substance is crucial for the body to absorb calcium effectively.

Step 2: Detailed Explanation:
- Calcium is a vital mineral for bone health. However, the body cannot absorb it efficiently from the intestines on its own.
- Vitamin D plays an essential role in this process. It promotes the synthesis of a hormone called calcitriol, which in turn stimulates the intestines to absorb calcium from the food we eat.
- Without sufficient Vitamin D, the body can only absorb about 10-15% of dietary calcium. With adequate Vitamin D, this absorption can increase to 30-40%.
- Protein, fat, and Vitamin A do not play this primary role in calcium absorption.

Step 3: Final Answer:
Vitamin D is necessary for the absorption of calcium in the body.