MCQ Detailed View

Vitamins are essential nutrients required in small amounts for proper growth, development, and maintenance of the human body. Vitamin-D plays a crucial role in maintaining healthy bones and teeth because it helps regulate calcium and phosphorus absorption in the body. A deficiency of Vitamin-D leads to rickets, a disease primarily affecting children, causing soft, weak, and deformed bones.

Rickets is characterized by:

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  Bone pain and tenderness

  
  


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  Delayed growth in children

  
  


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  Bowed legs or skeletal deformities

  
  


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  Weak muscles and dental issues

  
  

This condition occurs because, without adequate Vitamin-D, the body cannot absorb enough calcium and phosphorus from the diet. As a result, bones fail to mineralize properly, becoming soft and prone to bending and fractures.

Vitamin-D is sometimes called the “sunshine vitamin” because the body can produce it naturally when the skin is exposed to sunlight. Other sources include:

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  Fatty fish (salmon, tuna, mackerel)

  
  


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  Egg yolks

  
  


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  Fortified milk and cereals

  
  


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  Vitamin-D supplements

  
  

The other options listed in the question are caused by deficiencies of different vitamins:

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  Night blindness: Caused by lack of Vitamin-A.

  
  


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  Scurvy: Caused by lack of Vitamin-C, leading to bleeding gums and poor wound healing.

  
  


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  Hair fall: Can result from multiple deficiencies (iron, protein, biotin) but not specifically Vitamin-D alone.

  
  

Preventing rickets requires adequate sunlight exposure, a balanced diet rich in Vitamin-D, and supplements if necessary, especially in children and individuals living in low-sunlight regions.Hence, the correct answer is Rickets, making option B the scientifically accurate choice for this MCQ.