Question
| A. | Fresh dark green vegetables |
| B. |
Exposure of body to sunlight |
| C. |
Citrus fruits |
| D. |
Foods rich in polyunsaturated fatty acids |
|
Correct Answer � A Explanation |
 |
Vitamin K is a fat-soluble vitamin that plays a crucial role in blood clotting, bone metabolism, and vascular health. It exists in two primary forms:
- Vitamin K1 (Phylloquinone) – Found mainly in plant-based sources, especially dark green leafy vegetables such as spinach, kale, broccoli, and cabbage. This is the primary dietary source of Vitamin K.
- Vitamin K2 (Menaquinone) – Produced by gut bacteria and found in fermented foods like natto, cheese, and animal-based products.
Since Vitamin K1 is primarily obtained from fresh dark green vegetables, the correct answer is option (a).
Reasons to Rule Out Other Options:
B. Exposure of body to sunlight
Vitamin K is not synthesized in the skin through sunlight exposure. Sunlight is essential for Vitamin D synthesis, but not for Vitamin K production.
C. Citrus fruits
Citrus fruits like oranges, lemons, and limes are rich in Vitamin C, not Vitamin K1. They are essential for immune function and collagen synthesis but do not significantly contribute to Vitamin K intake.
D. Foods rich in polyunsaturated fatty acids (PUFAs)
Foods high in PUFAs (such as fish, nuts, and seeds) do not provide a major source of Vitamin K1. However, since Vitamin K is fat-soluble, dietary fats help in its absorption but are not a direct source.
