Which of the following vitamins is essential for normal blood clotting in humans?

💡 Solution & Explanation

Vitamin K is a group of fat-soluble vitamins required by the human body for the post-translational modification of specific proteins necessary for blood coagulation and bone metabolism. A deficiency in this vitamin can lead to prolonged bleeding times and impaired wound healing. Dietary sources include green leafy vegetables, vegetable oils, and fermented foods, alongside synthesis by gut commensal bacteria. This micronutrient is vital for producing prothrombin and other coagulation factors in the liver.