vitamin D can be made in our skin in the presence of sun
light
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Vitamin D3 (cholecalciferol) is synthesized in the skin by the reaction of 7-dehydrocholesterol with UVB radiation, present in sunlight with an UV index of three or more.
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gulshanpraween529:
sun
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Sun
Explanation:
Vitamin D can be made in our skin in the presence of sun-light
sun
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