A century -old topic about vitamin D: Do you really want to make up?

The Spanish "National Daily" website recently reported that people usually say "sunbath of vitamin D". But in fact, it is not a vitamin, nor a single material, but a set of hormone systems that the human body uses sunlight. In the past 10 years, people's lack of research and interest in vitamin D has doubled. Focusing on the vitamin D we call, the expert's explanation is certain, and some have obtained consensus, but there are controversy on more issues.

It is reported that this system is essential to metabolism of bone health and calcium and phosphate. Lack of vitamin D is a global health problem, which is mainly caused by insufficient light -we obtain 90%of the vitamin D of the human body from the sun. The remaining 10%are mainly provided by oily fish such as tuna, salmon and catfish, and eggs and mushrooms can also be provided.

It is estimated that vitamin D deficiency affects more than 1 billion people, of which the elderly are more serious. In fact, some people call it a big popularity.

"If we live like a thousand years ago, the level of (vitamin D) is sufficient if we live like a thousand years ago, but since we are no longer sunrise, we have wearing it. The clothes have reduced outdoor activities. Diet alone is almost impossible to meet the needs. "

In order to obtain sufficient sunshine, Hodal suggested that "15 minutes of exercise in the morning and afternoon, the arms and legs should be exposed during this period."

Endocrinologist Jose Manuel Cosada said: "What exactly does the vitamin D of vitamin D?" He said, this ambiguous name contains multiple compounds that constitute vitamin D endocrine systems: first two types are two types Nutrients, bile calcification (vitamin D3) and wheat angle calcification (vitamin D2). The former is synthesized by our skin in the sun or existed in the above -mentioned animal sources. The latter can be intake from plants, yeast and mushrooms. These two substances will produce 25-hydroxyl vitamin D3 and dihydroxycroxoliol.

It is reported that the determination of the normal level of 25-hydroxyl vitamin D3 we understand has been unanimously recognized by experts. Although there are differences, the blood concentration is generally believed that the blood concentration should be between 30 and 70 nake/ml. This value below 20 is mild deficiency, and less than 10 is severe deficiency. The Spanish Endocrinology and Nutrition Association pointed out that the value of 80%to 100%of the 65 -year -old and over 65 -year -old people under the age of 65 is less than 20.

Although mild deficiency does not cause symptoms, the lack of vitamin D is associated with a variety of diseases such as autoimmune diseases, infectious diseases, and cardiovascular diseases. For bones, lack of vitamin D can induce osteoporosis and even cause severe softening.

However, the endocrinology and nutritional associations do not recommend those who do not have risk factors to measure the concentration of 25-hydroxyl vitamin D3, and it is not recommended that adults who are not more than 50 years old take vitamin D supplements to improve bone health, not to mention there is no evidence to indicate that taking use Supplementary agents are good for the treatment of other diseases.

Hodal said: "There are very few high -quality research on taking vitamin D for treatment of these diseases, and most of the research methods are wrong." Casada agreed to this and said, "All experiments in the past 100 years have designed design. It is bad. "He believes that the academic community seems to use vitamin D as a drug, not a nutrients to study. Moreover, the research object is those who are normal, and it is not possible to improve vitamin D in them.

In fact, the research on vitamin supplements has produced many phase -left conclusions. Cassada believes that Spain should follow the practice of Northern Europe and supplement vitamin D for the national population to basic food, just like adding iodine to salt. He said: "When the academic community is still proved to be a good 25-hydroxyl vitamin D3 level, it is possible to prevent cancer, cardiovascular disease or fall, and the number of vitamin D in people's intake can reach an appropriate level."

Source: Reference Message Network

[Source: Reference News]

- END -