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 Among the groups
of fat-soluble vitamins appears the considerable and prominent Vitamin D aka calciferol
as called by many health workers. And this is exceptional vitamin since it
functions to be independently generated by the organism, first of all. However,
Vitamin D should still be consumed as the ingredient in the food diet. Second, Vitamin D has a significant impact onto
the endocrine activity when calciferol makes in the organism functions of the vitamin
and the hormone.
Nonetheless,
if you would like to deem the issue thoroughly, then you should know that
Vitamin D is not the hormone itself but it is the product of the vitamin
metabolism, dioxycholecalciferol that stimulates the reverse intake of calcium
ions by muscles and renal tubules. It also activates the synthesis of specific
transport proteins that make it easy to absorb calciferol into the bowels. And,
third, Vitamin D is presented as two organic compounds, namely cholecalciferol
and ergocalciferol. The biologic capacities of them are quite related though
the origin is different. Thus, if ergocalciferol comes into the organism with
the food, it is produced in the skin when it is exposed to the ultraviolet
spectrum, though there are cases when the «hypodermic» Vitamin D fully compensates
the daily need of the organism in calciferol.
We shall
better consider the impact of these vitamins onto the organism from the
biological point of view. First, the exchange of calcium ions works here, the
exchange of main mineral elements that allow the strength of the bone tissue of
the human skeleton. Insufficient intake or production of Vitamin D in the organism
results in demineralization of bone tissues, which is the elution of the
calcium ions from the bones. In its turn, low concentration of calcium in the organism
furthers osteomalacia and weakness of the skeletal muscular system, while
children with insufficient calcium show growth lagging and deformation of large
bones.
Therefore,
the insufficient amount of Vitamin D in the organism shows immediate adverse
effects onto the health. Rickets is the usual disease for children with low
calcium in the organism. The clinical finding of this diseases emphasize muscle
weakness, fragility and deformation of bones, asthenia, developmental lagging,
pathology in neural tissues and hemopoietic organs, and in severe cases the
lack of Vitamin D brings to acute impairment of functional activity of internal
organs and systems of the human organism. The lack of Vitamin D is not that
emphasized in adults, though such particular symptoms as muscle weakness, rapid
fatigability, pain in large bones, limping and sense shock are still the same
for both adults and infants.
In addition,
Vitamin D takes an active part in the metabolism of phosphorus and magnesium
which are essential for the proper functioning of the organism. Thus, phosphorus
is fundamentally required to ensure the harmonious and well-ordered work of all
the structures of the central nervous system. It is also a component of the well-known
adenosinetriphosphoric acid which is the main source of energy for the
appropriate functioning of all vital cells of the human body! Magnesium has its vital effect to support the cardiac
function, metabolism of a hundred of enzymes, yet, it is the component of such
significant cell structures as ribosomes being elements that takes a part in
the synthesis and transportation of protein.
And one
should be aware of the way to compensate the lack of calcium in the organism
and avoid the consequences of hypovitaminosis, yet, approximately 10 μg of
calciferol daily intake with the food is enough. And this is interesting that the
mentioned amount is not different for various ages. It is likely stipulated
with the fact that as we grow adults, the growth of bones significantly suspends
in spite of the increase in mass of bone tissues, and thus, leading to lowering
in need for the Vitamin D calculated for 1 kg of the body weight. However, from the age
of fifty the health status slightly changes when the bone tissue gets more
brittle and needs higher concentration of the Vitamin D.
Fish oil
contains the highest stock of Vitamin D. Also diary products and egg yolks have
plenty of calciferol. Among the vegetable kingdom «record breakers» are
mushrooms, parsley, nettle and others.
The same as
with medications and even herbs we should always consider the aspect of over
dosage. If you intake more calciferol than your organism needs, you will react
with polyuria (increased urination) and you definitely have problems with your
skin. Sometimes the signs of over dosage are like the symptoms of
hypovitaminosis D, and hence, the laboratory analyses are primarily essential
to diagnose the increased concentration of calcium in blood and urine, which
allows avoiding mistakes.
We are not
going to play around with our health. We should be careful and tender with what
we have to live.
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