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The body takes its requirement for vitamin D after sun exposure, but also by consuming certain foods and dietary supplements.
Sun Exposure: Vitamin D is naturally produced by the body when the skin is exposed to the sun. The amount of vitamin D assimilated depends on several factors, such as the season (there is generally less sun in the winter months), the time of day (the sun's rays are strongest between 10:00 and 15:00), clouds and level. air pollution, as well as the geographical area (cities near the equator have higher levels of ultraviolet rays). According to Harvard experts, a sun exposure between 10 and 15 minutes, several times a week, without using sunscreen, is enough to assimilate the required amount of vitamin D for a week. However, don't overdo it with unprotected sun exposure because it increases your risk of skin cancer!
http://www.apsense.com/page/the-essential-role-of-vitamin-d
Aug 11th 2021 11:44