Vitamin D facts

Important vitamin D facts follows, describing the vitamin and outlining important aspects of it.

Other pages on this site elaborate on sources, effects, supplements, toxicity, deficiency related to vitamin D. Also, we explore the link between vitamin d and cancer & general health. See links, page bottom.

Did you know that Vitamin D is not really a “vitamin“ in the true sense of the word. True vitamins are necessary elements that our body cannot produce, and that can only be obtained through food.

However, vitamin D can be produced in the body by a photosynthetic process when the skin is exposed to sunshine. Vitamin D is more like a hormone such as estrogen, testosterone or cortisol.

In fact, in 1971, vitamin D was reclassified as a hormone. Scientifically, it is now generally referred to as "vitamin D hormone."

Despite this re-categorization, it is still popularly referred to as "vitamin" D and so we'll follow suit.

Know that Vitamin D is fat soluble. Fat soluble vitamins can be stored to some extent. This could result in vitamin D toxicity or overdose.

Since your body can store vitamin D, the deficiency is pretty rare in developed countries.

Another reason vitamin D deficiency is uncommon is that your body makes it from the sun’s rays. Briefly, skin contains a precursor to vitamin D which is inactive. When sunlight hits the skin, it activates the inactive, or precursor vitamin D.

Many foods provide vitamin D including fatty fish, egg yolks, butter and leafy greens.

The importance of vitamin D in maintaining bone health is well established. New lines of research are looking into the effects of vitamin D on blood pressure, the link between vitamin D and cancer and many other conditions.

Following are links to our other helpful pages on vitamin D.

LINKS

Vitamin d facts

Foods with vitamin D

Benefits of vitamin D

Vitamin D toxicity

Vitamin D and cancer

Vitamin D deficiency symptoms

Vitamin D supplements

Vitamin D2, D3 & D1

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