Solar filter prevents the production of vitamin D, but no worries
This article was translated by an automatic translation system, and was therefore not reviewed by people.
The use of solar filter prevents the production of vitamin D?
Dermatologists regularly speak on the need to use solar filter. But the body needs of sunlight to produce vitamin D, a nutrient crucial.
It is possible that the use of solar interference filter in the synthesis of vitamin D?
Yes studies have found that, to block UV light, solar filter limits the vitamin D we produce. But the question is: to what extent.
Some studies concluded that the effect is significant - a reduction of almost ten times. However, more recent randomized studies that followed people for months - and in some cases for years - suggest that the effect is negligible. Although the solar filter panic the production of vitamin D, say these studies, this does not occur in sufficient scale to cause a deficiency of the vitamin.
This is partly because most people generally do not apply enough sun filter to obtain its full effect, which in turn allows the passage of a little sunlight, says Henry Lim, head of dermatology at Henry Ford Hospital in Detroit and spokesman of the American Academy of Dermatology. According to the National Institutes of Health U.S., it is much needed sunlight to produce adequate amounts of vitamin D: maybe about 30 minutes of exposure to light (without protection), twice a week.
Lim added that instead of cutting the solar filter, people concerned about vitamin D should consume more foods like salmon, milk and orange juice, rich in vitamin.
Thus, the use of solar filter can reduce the production of vitamin D, but probably not enough to have a significant effect.
Source: New York Times
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