D is a general term: Vitamin d comes in two forms, vitamin d3 is made in the skin after stimulation with ultraviolet light from sun shine and vitamin d2 comes from irradiated mushrooms. They both have the same effects but vitamin d3 stays in the blood for a longer time than d2.
Answered 11/12/2012
5.5k views
D is a general term: Vitamin d is a general term for vitamin d2 and vitamin d3. D2 comes from irradiated mushrooms and d3 is made in the skin under the influence of ultraviolet light.
Answered 11/12/2012
5.5k views
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