A vitamin whose main source is visible when we look up, but which we almost all are lacking. Why is vitamin D necessary for the normal functioning of the immune system and how can we be sure that we have enough of it?

Few vitamins are as deficient in modern man as vitamin D. To give a more complete answer to the question why this is so, we must first know what vitamin D is.

What is and how is vitamin D formed?

Vitamin D differs greatly from other vitamins, mostly in that its primary source is not food. Naturally, this vitamin is synthesized in the skin, under the influence of the sun’s rays, and on average just some 10% of vitamin D is ingested from foods such as salmon, tuna, sardines, veal liver, eggs and enriched milk.

This vitamin has wide and various beneficial effects and positively affects many functions in the body. Although synthesized in the skin and to a lesser extent in the body, it is deficient in people of different ages across the world.

Why do we lack it so often?

One answer is offered by the fact that modern man is less and less exposed to the sun. For people living in parts of the world with less sunlight during the year, this is to be expected. However, the problem lies in the fact that even in sunnier regions, people spend most of the day indoors – in offices, in transport or in the shade of skyscrapers. When we combine the need to expose ourselves to the sun with dermatologists’ warnings to do so rarely and carefully, the situation becomes even more complicated.

Another, albeit minor part of problem lies in restrictive diets, poor eating habits and fast food – all once again characteristic of the modern lifestyle. The previously enumerated sources rich with vitamin D are not so present in the everyday diet. Now that we know why vitamin D is deficient in many people today, let’s see why it is important.

Why is vitamin D so important?

There are three basic functions of vitamin D: to maintain the health of bones and teeth, to enable the normal functioning of muscles, and third, but lately the most important – to contribute to the normal function of the immune system.

Numerous studies indicate that vitamin D supplementation and an increase of its concentration in the body are associated with a reduced risk of many chronic diseases. Vitamin D is primarily necessary for the absorption and proper use of calcium and phosphorus in the body, which is the basis for the proper formation of bones and teeth, but vitamin D is also important for the normal functioning of muscles and the immune system.

Vitamin D has a positive effect on the: musculoskeletal, endocrine, immune, cardiovascular, nervous and respiratory systems. It has a positive effect on inflammatory bowel diseases, and recent studies indicate an association between chronic vitamin D deficiency and certain autoimmune diseases.

The effects of vitamin D on the immune system is of special importance. Vitamin D is a powerful ally of our immune system. The seasonality of a large number of viral infections is associated with low concentrations of vitamin D, as a result of less sunlight during the winter and a reduced synthesis of vitamin D in the skin. Vitamin D helps our immune system stay balanced which is very important because it protects our body.

How do you know if you are vitamin D deficient?

You can check the level of vitamin D in your body with a blood test. 25-hydroxy vitamin D is the main circulating form of vitamin D which, in addition to being a reservoir of vitamin D, is used to examine the status of vitamin D in humans.

How to provide sufficient amounts of vitamin D?

Responsible sun exposure is the best way to provide an adequate amount of vitamin D. Food is just an alternative source of vitamin D in humans. The problem is that relatively larger amounts of vitamin D are found only in fish oils, thus in some countries various types of food are enriched in order to prevent vitamin D deficiencies

The use of dietary supplements is recommended for people who are at an increased risk of vitamin D deficiency, especially in winter when the synthesis of vitamin D in the skin is low.

With this in mind, we have developed SolD₃evit® and SolD₃evit® 1000 – the only vitamin D in our country that comes with a practical dosing pump. The dosing pump enables easy and precise dosing. A neutral taste has been specially developed, which makes the application of the product adaptable for people of different age groups. It is recommended as a dietary supplement to prevent a vitamin D deficiency.

SolD ₃ evit 1 drop / dose contains 400 IU of vitamin D (cholecalciferol) SolD ₃ evit 1000 1 drop / dose contains 1000 IU of vitamin D (cholecalciferol)

Choose good allies in healthy habits and strengthening the immune system.