MCQ Detailed View

Vitamin K is essential for normal blood circulation because it plays a key role in blood clotting. Without enough vitamin K, the blood cannot clot properly, which can lead to excessive bleeding even from minor injuries.

Vitamin K is used by the liver to make clotting factors, which are proteins that help stop bleeding. This process is vital for maintaining normal circulation and preventing blood loss. People who lack vitamin K may experience bruising, bleeding gums, or nosebleeds.

Other vitamins listed in the options have different functions:

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  Vitamin A is important for vision, skin, and immune health.

  
  


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  Vitamin D helps with calcium absorption and bone health.

  
  


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  Vitamin E is an antioxidant that protects cells from damage but does not directly help in blood clotting.

  
  

Vitamin K can be obtained from green leafy vegetables like spinach, kale, broccoli, and from certain oils and dairy products. The human gut also produces some vitamin K naturally.

Maintaining normal blood circulation is critical for overall health. Vitamin K ensures that the body can respond to injuries, heal properly, and maintain a healthy cardiovascular system.

So the correct answer is Vitamin K, as it is directly required for blood clotting and normal blood circulation.