Vitamin D3

Vitamin D3, long known as a vitamin used to treat rickets in children and as a supplement in the prevention and therapy of osteoporosis in adults, according to the latest research, has much wider field of action:
– improves immunity condition and reduces the possibility of infection formation,
– protects against malignant diseases, especially breast, prostate andbowel diseases,
– reduces the autoimmune diseases frequency of formation and improves their course (rheumatoid arthritis, multiple sclerosis, etc.),
– improves diabetic condition,
– improves the course of skin diseases (psoriasis and eczema),
– beneficially affects neurological diseases and depression,
-beneficially affects hypertension and congestive heart failure,
– reduces muscle weakness.


Vitamin D3 (cholecalciferol) is a vitamin that is, due to its effect on almost all vital processes in the body, considered a prohormone. It is formed from its provitamin – dehidroholester. It belongs to the group of liposoluble compounds, which means that fats are necessary for its solution and resorption. In the kidneys, it turns into its active form – calcitriol.
What is its physiological function in the body?
The main physiological function of vitamin D in the body is the regulation of calcium and phosphate concentration in the blood. It enhances their resorption when it comes to the digestive tract and reduces their loss when it comes to the kidneys. It increases calcium insertion in the bone material, and therefore, it is considered necessary for the growth and calcification of bones and teeth.Since calcium is responsible for the growth of almost every cell in our body, we can conclude that vitamin D is also necessary for all vital cell functions: growth, division, differentiation and apoptosis. For that reason, vitamin D also mediates in both immune andhormone regulation.

What are the main natural sources of vitamin D?

The most significant natural source of vitamin D is our skin, where the vitamin is formed from itsprovitaminunder the influence of UV sunlight. As a provitamin, it can be found in yeast and fungi, and rich sources of the vitamin itself are fish oil,fish, milk, dairy products and eggs, especially yolk.

What causes vitamin D3 deficiencyin the body?

In case the body is deficient in vitamin D, food intake of calcium cannot be reabsorbed, that leads to the mobilization of this element from the largest depot in the body – bones. Rickets in children, and osteomalacia (bone softening) and osteoporosis (bone mass loss) are the consequences of that action.

Bone changes are mainly considered a consequence of vitamin D3 deficiency. However, itsdeficiency negatively affects the insulin excretion bypancreas beta cells. There could be a disorder in division, differentionand programmed cell death, which increases the risk of malignant and autoimmune disease formation, skin diseases, as well as low immune system and the proness to frequent infections. The deficiency can cause constant tiredness, insomnia, nervousness and muscle weakness feeling.

As opposed to the deficiency, the increased content of vitamin D in the body rarely occurs and is a consequence of irrational dietary preparation use.The main reason is its liposoluble property and the fact that it is accumulated in our body fats and gradually released from them. The possible result of hypervitaminosis is the accumulation of calcium in the kidneys, and therefore, caution is advised in vitamin D use to all persons suffering from kidney stones or any parathyroid gland, lymph and sarcoidosis diseases.

Why is the vitamin D3 dietary preparation use advised and what is the best way for that?

A half of the world population is considered to suffer from vitamin Ddeficiency. . There are numerous reasons for that. We all know that vitamin D if formed in the skin under the influence of UV sunlight. However, the polluted air in our environment blocks the proper function of UV light to our skin.On the other hand, due to the changes in ozone layer, the use of cosmetic preparations with UV filters is advised, and they can reduce the production of vitamin D in our skin up to 95%!If we also list frequently improper and irregular diet, we can conclude that the vitamin D3 supplementation for the people of modern ages is almost necessary.

It has already been proved that vitamin D3 intake since the earliest age until the advanced old age is a certain path of the protection against rickets in children, and osteoporosis, especially in menopausal women. Regular intake, with the consultation with a doctor or pharmacist, can improve the immunity, provide the protection against infections and malignant diseases. In that way we protects our skin and pancreas, reduce the possibility of, let say, psoriasis, diabetes or rheumatoid arthritis being formed someday, and significantly improve the existing diseases and control their condition.
It is best to take vitamin D3 in a liquid form (drops), in which it is dissolved in a natural oil that ensures the best resorption and tolerance. The emphasis is on the natural oil, since it has been proved that mineral oils reduce the efficiency of this vitamin. The natural oil, as a medium for vitamin D3, should be stabilized by natural antioxidants which results in the most natural intake.The daily requirement for vitamin D3 is 400 i.j, that is 5-10 mcg (mikrograms).

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