QuickSilver
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- Location
- Midwest
Oh yes living in the Northern hemisphere I've always known how important it is to get our quota of Vitamin D.. but I'd not heard specifically of a deficiency of VIT D3 I was just curious as to whether there was another reason for the cause..
From Web MD
[h=3]Causes of Vitamin D Deficiency[/h]Vitamin D deficiency can occur for a number of reasons:
You don't consume the recommended levels of the vitamin over time. This is likely if you follow a strict vegan diet, because most of the natural sources are animal-based, including fish and fish oils, egg yolks, cheese, fortified milk, and beef liver.
Your exposure to sunlight is limited. Because the body makes vitamin D when your skin is exposed to sunlight, you may be at risk of deficiency if you are homebound, live in northern latitudes, wear long robes or head coverings for religious reasons, or have an occupation that prevents sun exposure.
You have dark skin. The pigment melanin reduces the skin's ability to make vitamin D in response to sunlight exposure. Some studies show that older adults with darker skin are at high risk of vitamin D deficiency.