What is useful vitamin D?
The role of vitamin D is important in the life of every person. How is this connection in the body and the lack of vitamin D can be fraught?
Vitamin E is customary to call a rather complex organic matter, without which individual processes in the human body would be impossible.So, for example, he participates in the exchange of phosphorus and calcium, stimulates the growth of muscles and bones. Vitamin D is a fat solubular substance. It is his doctors who recommend giving all children from infant age and up to three to five years.
Who and when opened Vitamin D
At the beginning of the twentieth century, the American scientist e. McColaum managed to prove that to prevent the development of rickets and adjust the normal metabolism of bone tissue with a certain substance capable of dissolving in fats.
This useful substance was called vitamin D. A little later, namely in 1924, another scientist M.
Weinstoku and A. Gess was able to synthesize it from vegetable oil, to which ultraviolet radiation was influenced by 280-300 nm.
To date, there is a whole group of biologically active substances having a common name Vitamin D.
In medicine, the most widespread two of its forms were obtained:
- Ergocalciferol (D2);
- cholecalciferol (D3).
Vitamin D3 is synthesized in human skin from its inactive precursors under the direct impact of ultraviolet rays. Finding into the kidneys, this substance is activated and converted into a calcitriol molecule, which is inherent in a certain hormonal activity.
Human role
Probably, everyone knows that the main function of vitamin D is the adjustment of phosphorus-calcium exchange. That is, this substance contributes to the correct absorption of calcium and the absorption of phosphates in the intestine.
It is safe to say that Vitamin D is one of the most important elements, as it:
responsible for the normal development and growth of the bones of the human skeleton. It is known that with age under the influence of certain adverse factors, the bone structure of some people decreases by about 15%. Bones in this case become porous and hurt. This ailment is just treated with calcium with vitamin D;- In childhood, the development of Rakhita warns;
- prevents active breeding of cancer cells;
- Provides good blood clotting and the work of the thyroid gland;
- contributes to increasing general immunity;
- has a significant impact on metabolic processes in the human body;
- contributes to the rapid healing of bone fractures;
- Partially regulates muscle activity and prevents the weakness of the muscles;
- responsible for insulin activity and blood sugar;
- prevents chronic fatigue, which is often characteristic of the elderly;
- Helps to prevent the development of many serious diseases (scarm sclerosis, type 1 diabetes, rheumatic arthritis and t.D.);
- Promotes the cessation of inflammatory processes occurring in human body bodies.
Where in the body comes Vitamin D
As mentioned above, the most basic amount of this vitamin is formed in human skin under the action of ultraviolet rays. That is why the most active Vitamin D is formed in the warm season, when the sun shines on the street.
As for food, which contains vitamin D, as a rule, at all in small doses, it is possible to detect it in:
fish oil;- sea fish;
- egg yolks;
- cow’s milk;
- Liver and T.D.
It is worth noting that the quantity of this compound that can enroll in the body only with food is not able to cover the daily need of a person.
Speaking, for example, about a newborn baby, it can be argued that if his mother does not receive special vitaminized additives during breastfeeding, it is unlikely that you can expect a normal development of the kid.
How much do you need a person daily
The daily need of the body in this biologically active substance is determined by age, physiology and lifestyle of each particular person. So, on average children from birth and up to three years it is necessary to receive 10 μg of vitamin D per day.
To achieve a four-year-old age, the recommended dose is reduced to 2.5 μg. The same amount of vitamin is necessary daily to children of older and adults. Pregnant women and nursing mothers vitamins need a little more, so for them the daily dose is 10 μg.
That is, it turns out that most vitamin D must receive babies, as well as pregnant and nursing women. Children need this substance like no other, because their muscles and skeleton just begins to form and actively grow.
If it is too much
With too long treatment and reception of vitamin complexes, a person may have an overdose of vitamin D. As already mentioned, this substance is fat soluble and, accordingly, can accumulate in the body.
At the same time, a person can observe the following symptoms:
- general weakness;
- lack of appetite;
- feeling of nausea;
- labored breathing;
- high blood pressure;
- pain in the joints;
- convulsions;
- Head and Muscular Pain.
If we enter into the body a very large dose of vitamin D, then calcium will be deposited in the internal organs and penetrates the walls of the vessels, as a result of which atherosclerotic plaques are formed.
However, that this happens, it is necessary to obtain a dose of vitamin 2-3 times higher than therapeutic, so hypervitaminosis is almost not found.
Lack of vitamin D
Unlike overdose, the lack of vitamin D – the phenomenon is very common, which can cause various diseases.
A small deficit of it is usually manifested by the following signs:
lack of appetite;- loss of body weight;
- burning in the throat and in the oral cavity;
- insomnia;
- Increased sweating;
- constant fatigue;
- Violations of vision.
If the disadvantage of this substance is very significant, the development of osteoporosis, softening bones in adults, rickets and deformities of the spine in children.
As can be seen, Vitamin D is very important in a variety of human health aspects.
What is only the fact that this substance coming into the body in sufficient quantities is able to extend human life for 10-15 years, reduce the risk of developing malignant, endocrine and cardiovascular diseases.
