Vitamin K is a group of several substances. They distinguish Vitamin K1 (phylloquinone) and Vitamin K2. Biological role of Vitamin K is associated with participation in fibrillation. It is essential for synthesis of plasmozyme active forms and other factors of blood fibrillation while treatment with antibiotic and medication effecting intestinal tract microflora. Healthy organism produces Vitamin K itself. Vitamin K generates by intestinal tract microflora and comes in with food.

Lack or absence of this vitamin causes hemorrhagic disease development. As Vitamin K is liposoluble, its coming into an organism can be interrupted with interruption of fat absorption by an intestinal wall. It can cause hemorrhagic diathesis. Hemorrhagic diathesis is a disease appearing in increased bleeding; there are spontaneous and traumatic, difficult to stop bleeding (hypodermic, intramuscular, intravascular and others). Hemorrhagic diathesis with abruptly decreased fibrillation depends on ferment fall in blood necessary for fibrillation. This is prothrombin, its formation depends on Vitamin K.

Vitamin K is widely presents in plants. Especially in hairy medic, spinach, chestnut, nettle, milfoil leaves. There is a lot of the vitamin in dog rose, cabbage, carrots, tomatoes and strawberry.

Daily need in Vitamin K is not known exactly, about 70-140 mkg.

Vitamin K is broken with heating.

Vitamin K comes to an organism with food mostly/ it is partly formed by intestinal microflora. It is absorbed with the help of bile.