There are many variables that affect sunshine absorption by your skin & vitamin D3 production. Vitamin D3 is an essential nutrient. It would be wise to know how much you need every day & how to get it. Few do.
Here is a bit of information about this.
Vitamin D is sometimes called the "sunshine vitamin" because the body makes vitamin D3 when the skin is exposed to the ultraviolet or UV rays of the sun. Skin type, use of sunscreen and various environmental factors can all affect how much vitamin D3 your body produces from sunlight
A fair-skinned person who spends as little as 10 minutes in the sun during the midday when its rays are most intense, wearing only a sleeveless shirt and shorts will be exposed to enough radiation to produce about 10,000 international units or IU of vitamin D. People with darker skin may need 15 to 20 minutes of sun exposure while those with black skin may require up to one hour in the sun to make the same amount of vitamin D.
Read more: http://www.livestrong.com/article/458399-how-much-vitamin-d-...
Disclaimer: Mark Twain (1835-1910-To be continued) is unlicensed. His river pilot's license went delinquent in 1862. Caution advised. Daily Paul ☑
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