What is vitamin K
Vitamin K belongs to the group of fat-soluble, or as they say, lipophilic vitamins. The property of lipophilicity means chemical affinity with organic substances and suggests the possibility of vitamin K dissolved in fats. A large amount of this vitamin is contained mainly in fruits and vegetables (lettuce, spinach, cabbage, cucumbers, pumpkin, tomatoes, asparagus, potatoes, bananas, avocados, carrots), as well as oatmeal, green tea, wild rose, in olive and soybean oils.
The name of the vitamin K is associated with one of its main functions, namely, with its participation in the process of blood coagulation. The process of blood coagulation is also called coagulation, and the vitamin itself - vitamin koagulations. Hence its origin.
The existence of this vitamin was first discovered in the early 20th century. This happened in the framework of the experiment of the Danish scientist Henrik Dame on chickens in 1929. The essence of the experiment was that the chickens were placed in the conditions of a diet suggesting the absence of cholesterol.For several weeks, a researcher observed changes in cholesterol-free chickens, and compared the results with data obtained from a control group of chickens that received good nutrition.
Unfortunately, the results of the experiment can not always be predicted in advance: in the last weeks of the experiment, chickens that did not receive cholesterol had a hemorrhage in the body tissue, which in the medical literature is defined as hemorrhage. In an attempt to eliminate the unexpected effects of such a diet, Henrik Dam began to add purified cholesterol to the chicks. But it had no effect, the symptoms of hemorrhage did not pass. Grains of cereals and other plant products that were promptly introduced into the diet could significantly affect the elimination of pathological symptoms. In addition to cholesterol, substances were isolated from these products, which also had a positive effect on the blood coagulation process. This group of substances received the name of vitamins K.
Further study of vitamin K allowed us to identify a number of related and no less significant functions that this vitamin performs in the regulation of the body's activity.Participating in the absorption of calcium and ensuring the interaction of calcium and vitamin D, vitamin K provides metabolism in bones and connective tissues, and also has a positive effect on the healthy functioning of the kidneys.