Which vitamin is necessary for the proper clotting of blood?

Vitamin D, commonly found in dairy products, is necessary for bone growth and immune system defense. Vitamin C is critical for maintaining a healthy immune system, but it does not play a role in blood clotting. Similarly, Vitamin A is essential for maintaining healthy vision and skin, but it is not involved in blood clotting. Vitamin K is the necessary nutrient for proper blood clotting and is often found in leafy green vegetables.