Danny,
I have seen a number of patents on genetically engineering vitamin D and I
believe they are not recent patents.  But there are a number of studies using  a
genetically engineered vitamin D, to treat breast cancer and prostrate
cancer.  This vitamin D was manufactured by a company called Leo Pharmaceuticals and
the vitamin is named EB1089.

Since the FDA considers anything genetically engineered equivalent to the
real thing, there is no labeling required.  And I would assume that since this
genetic engineering has been going on for sometime, these products are on the
market.  I don't have time to do an in-depth search for you at the moment, since
I live in Florida and supposedly we have a hurricane coming this way and I
have much to do.
 http://www.ktvotv3.com/global/story.asp?S=1311149&ClientType=Printable
"When compared to other cancer treatments, the vitamin D analog is much less
toxic and, at least preliminarily, it appears to aid radiation therapy in
impacting the growth of tumor cells," says lead author Sujatha Sundaram, a
research assistant professor at Dartmouth Medical School.
An analog is a synthetic, laboratory-made derivative of a parent compound --
in this case vitamin D -- that is genetically engineered by adding or removing
certain chemical elements. In the instance of EB1089, it was necessary to
modify vitamin D because "at the dose you need to give to have an effect on
cancer, it could cause some side effects," Sundaram says. Those side effects would
include an overload of calcium, a condition known as hypercalcaemia."
If this isn't helpful, let me know.  I'll try and get back with you unless I
am under water and without electricity.
Valerie W. McClain, IBCLC

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