There are several types of natural Vitamin K known, K1 and K2.
Wikipedia has a very nice article on that.
In general K1 regulates blood clothing and K2 has an important function in maintaining calcium density in the bones.
You probably die because vitamin k is important to have in human body.
provides Vitamin K and B-Complex
The bacteria absorb nutrients in the gut from digested food - the human benefits from the production of the vitamin.
The E. coli bacteria that reside in the human large intestine and produce vitamin K are commonly known as commensal bacteria. They have a mutually beneficial relationship with the human body, aiding in vitamin production while taking nourishment from the host.
it is stored in the blood and tissuses but not for very long because your body gets rid of it as soon as possible!
The main purpose of Vitamin K is to aid in the clotting process. Vitamin K is important as part of the blood clotting mechanism of the body.
vitamin D
Vitamin K is converted to active vitamin K in the body which helps to activate clotting factors in the liver. Coumadin (warfarin) prevents the body from activating vitamin K, therefore the clotting factors are never activated and your blood becomes thinner or more difficult to clot. When you eat vitamin K rich foods (green leafy vegitables, etc), the vitamin K competes with the Coumadin and can neutralize its effect.
With the help of sunlight the body produces Vitamin D.
Vitamin k is essential for blood clotting thus helping wounds to heal.
There are a selection of vitamins that are in the Vitamin K group. These are known as K1-K5. Vitamin K1 is not produced by the body but is absorbed from foods such as green leafy vegetables (spinach, cabbage, broccoli) and some fruits such as avocado and kiwi fruit. Vitamin K2 is produced by bacteria in the large intestine. Vitamins K3-K5 are synthetic and are not generally used for human consumption.
The chemical name for vitamin K is phylloquinone. It also is referred to as phytomenadione or phytonadione. This vitamin is important in the body for blood coagulation.