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How does the sunscreen affect the production of vitamin D? How does alcohol use affect?
90% of vitamin D of man comes from sunlight
• Vitamin D production decreases with age, as the skin morphology is changing, and people are less likely exposed to the sun.
• UV filter with a coefficient 8 reduces the production of vitamin D to the skin up to 97%.
• 1 vitamin D3 = 40 micrograms (international units)
• Vitamin D should be used on an oil carrier, which will provide its higher assimilation compared to a tablet form that does not contain fat components.
• The deficiency of vitamin D in the blood is almost impossible to be corrected without the use of high-quality food additives (high consumption of rich in vitamin food and solar baths are not enough).
• Preparations that reduce the suction of fats and cholesterol, limit the absorption of vitamin D from food
• Alcohol slows down the transformation of vitamin D to the active form
• Cow's milk itself does not contain a lot of vitamin D, its quantity depends on the season and the quality of animal feeds, similarly to the eggs (regardless of whether there are non-bumps on free walking with access to UV radiation)
Vitamin D deficiency was repeatedly found in various groups of the population, often due to its low consumption with food, insufficient quantity of additives or insufficient exposure to sunlight. From the point of view of the production of vitamin D in the skin, not only the presence of sunlight, but also an angle under which the sun rays fall on our skin (that is, the height of the sun over the horizon).
It also depends on the ozone layer, smog in the city, heights above sea level, time of day, skin exposed to the sun, type of clothing or use of sunscreens. Do not forget about the phototype of a particular person - the lower the phototype (more white skin), the easier it is to produce vitamin D under the influence of UV radiation.
For example, inuita, Eskimos living in Canada and North Alaska suffer from a serious deficiency of vitamin D, if they refuse their traditional livelihoods, that is, they often consume nitamin D of marine inhabitants. Many layers of warm clothing are also an obstacle to vitamin penetration.
Conversely, white children living in South Africa have a higher level of vitamin D compared to the black population there, because dark skin produces vitamin D slower.