The majority of vitamins act in organism with food. Some vitamins can be synthesized by various microorganisms, which thrive in the intestines of humans. There are vitamins, which are synthesized by various bodies of humans under certain conditions. However, rather frequently the process of one vitamin synthesis is closely connected to receipt of other vitamins. Thus, shortage of one vitamin can cause infringement of other vitamins synthesis.

More than 50 % of vitamins act in a human body in composition of food. However, modern people more often use fried, cooked, refined food, in which the maintenance of natural vitamins as a result of culinary processing is reduced in 3-4 times. It is established, that 80 % of Europeans daily use in 1 peep no more than 100 g of fresh vegetables or fruit. Thus, in a daily ration the majority of people shortage of the basic vitamins is observed. At shortage of vitamins there are such diseases as hypovitaminosis. Besides hypovitaminosis can provoke development of such serious pathologies as infringement of metabolism, dysfunction thyroid and pancreas, infringement of sight, ulcer of stomach, colitis and infertility.

For restoration of normal balances of vitamins in organism doctors recommend to use on a regular basis natural vitamin supplements. Natural vitamin supplements are developed in view of necessary daily doze of vitamins for the adult person. In composition of natural vitamin supplements natural vitamins taken from vegetative or animal raw material by the method of extraction or sedimentation are included. As against manufacture of synthetic vitamins, natural vitamin producing is quite an expensive process. Therefore, the cost of natural vitamin supplements frequently exceeds the cost of vitamin preparations into the structure of which synthetic-made vitamins include. According to some medical data, comprehensibility of natural vitamins is higher in 1.5-2 times than comprehensibility of synthetic.

For an increase of efficiency of natural vitamin supplements application in the structure of these products include the balanced quantity of necessary for organism amino acids, enzymes, glycosides and other biologically-active substances. At regular application of natural vitamin supplements these preparations are rather effective. However, for increase of natural vitamin benefits it is desirable to use vitamin preparations in a complex with other medicines products.

Besides the prevention of hypovitaminosis it is desirable to use daily fresh vegetables and fruit, cereals, juices, eggs and not refined vegetable oil. Fresh vegetables and fruit contain practically a full complex of necessary vitamins. It is necessary to note also that vegetables and fruit contain a significant amount of cellulose which normalizes work of intestines and creates in thin intestines the favorable environment for development of useful microorganisms which synthesize more than 5 % of vitamins necessary for the human's body.