Because the power of the sun in the winter half year in Germany is much weaker than in summer, it comes with many people at this time to a lack of vitamin D.
Vitamin D affects calcium metabolism
This vitamin, which is actually the precursor of a hormone, is made up to 90% by the body. This, however, the body needs sunlight, which is in our part of October to March usually not sufficiently available. The so-called "sunshine vitamin" has, among other things a significant impact on calcium metabolism and hence to the strengthening of bones and teeth.
Considerably less than half the limit
According to the German Society for Nutrition less than 57% of men and 58% of women the limit recommended for vitamin - D concentration in the blood. Children, seniors and women in menopause have a higher vitamin D requirement than the rest of the population that fluctuates naturally seasonal. In particular, women are particularly affected by severe under-supply: every third woman in a severe vitamin D deficiency lies in front of 10 ng / ml.
The problem: there is nothing on first
The problem is that this lack stakeholders not immediately noticeable, there are no direct symptoms and hence no suffering. Over time, however, by severe osteoporosis caused or amplified. Also, the risk of fractures from falls substantially improved. Quite apart from the negative impact that a vitamin D deficiency on the immune and cardiovascular system. Therefore, it is recommended that a bone density measurement to make, information about the therapy gives the necessity and monitoring is one.
Unfortunately it is not done with the daily winter walk, to submit to the threat of the defect and the winter vacation in the mountains is not enough for the vitamin D storage in fat cells to fill - that is the sun in central Europe in winter too weak . Even a short trip to the sun provides only limited redress the vitamin is only limited storage capacity. The best is a constant supply of this important vitamin.
What can you do?
But how can they be sure? On the diet but it is also only possible in cod liver oil, fish, some mushrooms, eggs and dairy products, although containing a certain proportion, but not enough to cover all the needs. The solarium is also no alternative, because the formation of vitamin D. UVB rays are required which are banned because of its carcinogenic properties of the most sunny banks. From the self-medication with vitamin D preparations is strongly discouraged. It is better to obtain a blood sample to a general practitioner clarity on the vitamin D levels to be useful and checked against a lack of effect.
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