Re: --Sunshine--Calcium--Vit D--Cod Liver Oil--

http://dietary-supplements.info.nih.gov/factsheets/vitamind.asp


Vitamin D is a fat soluble vitamin that is found in food and can also be made in your body after exposure to ultraviolet (UV) rays from the sun.


http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/otherendo/vitamind.html


Bioactive vitamin D or calcitriol is a steroid hormone that has long been known for its important role in regulating body levels of calcium and phosphorus, and in mineralization of bone.


http://en.wikipedia.org/wiki/Vitamin_D


refers to a group of fat-soluble prohormones as well as to the metabolites and analogues of these substances. Two major forms of vitamin D are D2 (or ergocalciferol) and D3 or cholecalciferol.[1] Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation.

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