Vitamin K – jest to również grupa związków, which in more significant quantities occur only in plant products (np. In lettuce leaves, walnuts, soybean oil). Vitamin K2 produce human gastrointestinal bacteria (large intestine).
Vitamin K is necessary for the synthesis of prothrombin and probably other blood coagulation factors.
Blood clotting disorders are the only well -documented symptom of a shortage of this vitamin.
A whole group of compounds called vitamin K (so -called. kerosene-chinons) has a similar biological effect.
There are no deficiencies of this vitamin with a vegetarian diet. Only during antibiotics treatment, vitamin K can it be necessary, Due to the occurring in , such cases inhibiting the growth of intestinal bacteria.