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Vitamin D is a naturally occurring compound but is not prevalently present in food sources.
Sunlight is most important of all sources of vitamin D. The human body gets its dose of Vitamin D through the synthesis that gets triggered by the exposure to sunlight. it needs to be broken further down and this process also takes place as a part of the sunlight synthesis. Vitamin D enhances the ability of the body to absorb calcium, thereby strengthening the bones. Apart from this, it also increases the immunity against diseases and helps in cell growth. The other sources of vitamin D include natural food varieties.
The most common foods of vitamin D content are fish and fish liver extracts.
All fish varieties provide the vitamin D content that is fit for consumption but Mackerels, Salmons and Tunas have the maximum content. Vitamin D is an important source of strong bones as well, and is of significance in helping to prevent such diseases as osteoarthritis, multiple sclerosis, juvenile diabetes, etc.2 Vitamin D deficiency has also been fingered in a myriad of mental illness causes, but most importantly in work relating to treating depression and Alzheimers.3 Steps Understand what vitamin D is.
It is a fat soluble vitamin.4 It is found in certain foods and also is synthesized by our bodies from sunshine. Sunshine is the most important source of vitamin D the UV rays in sunshine trigger the synthesis in our skin. Daily intake amounts are recommended at 200 I.U. 400 I.U.
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Source: (foods with vitamin d) http://www.foodswithvitamind.org/