BIOLOGY
VITAMINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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From the sun
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From the water
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From getting sleep
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From doing exercises
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Detailed explanation-1: -Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years. During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.
Detailed explanation-2: -When your skin is exposed to sunlight, it manufactures vitamin D. The sun’s ultraviolet B (UVB) rays interact with a protein called 7-DHC in the skin, converting it into vitamin D3, the active form of vitamin D.
Detailed explanation-3: -Vitamin D isn’t naturally found in many foods, but you can get it from fortified milk, fortified cereal, and fatty fish such as salmon, mackerel and sardines. Your body also makes vitamin D when direct sunlight converts a chemical in your skin into an active form of the vitamin (calciferol).
Detailed explanation-4: -The daily recommended dose of vitamin D is 600–800 IU for adults. Many people can produce enough vitamin D by spending roughly 30 minutes in the sun a few times a week, but that isn’t true for everyone.
Detailed explanation-5: -The precursors of Vitamin D-that is, molecules that produce the vitamin-present in your skin are activated by the sun; so soaking some morning sun is a good idea, health-wise.