Vitamin D: Literally Everything You Need to Know…

Posted by on Jan 29, 2015 in General | Comments Off

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You may be surprised to learn that vitamin D is completely different from most other vitamins. It is actually a hormone, a steroid hormone that is produced out of cholesterol when your skin is exposed to the sun. For this reason, vitamin D is often referred to as the “sunshine” vitamin.

However, sun exposure is often inadequate these days, making it necessary for people to get more of it from the diet (or supplements). This is important, because vitamin D is absolutely essential for optimal health. Unfortunately, only a handful of foods contain significant amounts of this vitamin, and deficiency is extremely common. In fact, according to data from 2005-2006, a whopping 41.6% of the US population is deficient in this critical vitamin/hormone.This article explains everything you need to know about vitamin D.

What is Vitamin D?

Vitamin D is one of the fat-soluble vitamins (A, D, E and K), meaning that it dissolves in fat/oil and can be stored in the body for a long time. There are actually two main forms found in the diet:

Vitamin D3 (cholecalciferol): Found in some animal foods, like fatty fish and egg yolks.

Vitamin D2 (ergocalciferol): Found in some plants.

Of the two, D3 (cholecalciferol) is the one we’re interested in, because it is almost twice as effective at increasing blood levels of vitamin D as the D2 form.

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