Sources of vitamin D
Sources of vitamin D Formed in the skin under the influence of sunlight Previously, the role of vitamin D was mainly reduced to the passive regulation of calcium metabolism in the blood and was considered the only syndrome of its deficiency in the blood development of specific deformation of bone tissue, called rachitis. Currently, the role of the vitamin is greatly revised. Ergocalciferol appears in the human body from two sources. The first source is the synthesis of the vitamin in the skin with solar insolation. But given the fact that a pronounced deficit is observed even among African peoples, scientists concluded that staying in the sun by itself is not capable of closing the body's need for this substance. Synthesis of ergocalciferol practically does not occur in the swarthy tanned skin, and the amount produced can, except that, have an anti-rachitic effect. Comes into the body with food and additives The second source of vitamin D is its intake from the outside with ...