Question:

Which of the following vitamin is helpful in delaying the blood clotting?

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Vitamin K is the vitamin associated with the blood clotting mechanism (its deficiency prolongs clotting time); it is the key answer for this question.
Updated On: Nov 4, 2026
  • Vitamin K
  • Vitamin C
  • Vitamin E
  • Vitamin B
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The Correct Option is A

Solution and Explanation

Vitamin K (phylloquinone) is needed for synthesis of the clotting factors (prothrombin, factors VII, IX and X) in the liver; its deficiency increases clotting time and causes haemorrhage.
Vitamin C deficiency causes scurvy, vitamin B-group deficiencies cause beri-beri, pellagra etc., and vitamin E deficiency causes muscular weakness and fragility of red blood cells. None of these is the main vitamin of the clotting process.
The vitamin related to the blood clotting process (the key option) is vitamin K.
Answer: (1) Vitamin K
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